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D-Link DI-206 User's Manual

1. IP Protocol Numbers Protocol Protocol Name Description 1 ICMP Internet Control Message RFC792 2 IGMP Internet Group Management RFC1112 6 TCP Transmission Control RFC793 8 EGP Exterior Gateway Protocol RFC888 DLM1 9 IGP any private interior gateway IANA used by Cisco for their IGRP 17 UDP User Datagram RFC768 JBP 46 RSVP Reservation Protocol Bob Braden 88 EIGRP EIGRP CISCO GXS 115 L2TP Layer Two Tunneling Protocol Aboba IP Port Numbers Service TCP UDP Notes FTP 21 File Transfer Telnet 23 SMTP 25 Simple Mail Transfer DNS 53 53 Domain Name Server Finger 79 WWWHTTP 80 World Wide Web HTTP POP3 110 Post Office Protocol Version 3 137 137 NetBios Name Service 138 138 NetBios Datagram Service 139 139 NetBios Session Service SNMP 161 SNMP Trap 162 98 DI 206 ISDN Remote Router Appendix D Technical Specifications General Ports Number of Ports 6 Ethernet ports RJ 45 2 Analog phone ports RJ 11 1 Console port DB 9 RS 232 DCE LED Readout Power Test ISDN Link B1 B2 Ethernet Col Link Act Uplink 1 2 3 4 5 Phone 1 2 LAN Standard IEEE 802 3 IOBASE T Ethernet LAN Protocol CSMA CD Data Transfer Rates 10Mbps half duplex Network Cables 10BASE T 2 pair Cat 3 4 5 100m max length EIA TIA 568 100 ohm screened twisted pair ISDN Standard PPP
2. 6 The DI 206 Front Panel essit i e e ueteri tere patei 6 The DI 206 Rear Panel ete eei ee estia ton eines 7 Telephone Features zs s et eh titre etr n ete Wan eae a ct tete Os deseen eee bett de hs 8 Installation and Initial Configuration eese eee nee nennen 8 A Warning on Connection Cables 3 ra MR E tere e erbe rere eee 9 Step 1 Setting up the Console Step 2 Connecting the Console to the Router eese en en enne 9 Step 3 Connecting an ISDN Line to the Router nennen 10 Step 4 Connecting a Telephone or Fax Machine to the Router 10 Step 5 Connecting Ethernet Cables to the Router 10 Step 6 Powering Up Devices for Initial Configuration 12 Step 7 Initial Configuration of the Router essere en ener nennen 12 Step 7 Configuring the LAN nennen nennen nenne 13 Step 8 Plugging in All Devices eseeeseeeseeseeeeeeneeneeeee nennen nrenetetnete ennt enetne trennen 15 Network CORfiguF tlOTis aee t sen e eR THU ERR HER petet 21 IP Stack ConBSuration e E RESTER nen EIS D RO eR EE 22 IP Static Route IP Networking Router Adver sement pectine OM ERREUR ETERNI IEEE e TRU RI NEU 26 SNMP Agent Configuration eese dte ete eee Te br a 26 SNMP Community Configuration eese 27 SNMP T
3. 108 stub 53 See Single User Account Subnet Mask sese 97 System 17 System 17 System Information sees 17 System ISDN 80 System LAN 79 83 106 System Location eee 18 System MAC Address 18 System 66 System Name 18 System Object 17 System Reset entente 86 88 System Restart essere 81 System Status 67 System Up Time esee 17 T Talk 24 TGP IP san 1 2 3 108 TCP IP Parameters Configuration 86 Telecommuting eene 3 telephone jacks 29 telephone number esses 31 Telnet n ete 2 5 9 16 26 90 91 Using Telnet via 90 Using Telnet via LAN 90 Telnet Configuration esse 90 Telnet Enable 60 LE TP es atin 87 EEEEP SeEVGE 80 87 ibn C 75 Timeout teet et 08a 18 Trace Butler nce ae aie hd 75 Translation Mode
4. sess 55 Transparent Bridging See Bridging U UNNUMBER itae pn 23 Update Software from Configuration File 88 User Profile edm Rees 33 Username sosesposesseeet dt 30 eet de etie ote 108 V virtual circuit sn ee 30 37 visible computer 55 VOICES sete ee edet ed 29 W WINS IB nies Ie 40 D Link offices AUSTRALIA CANADA CHILE DENMARK EGYPT FRANCE GERMANY INDIA ITALY JAPAN RUSSIA SINGAPORE S AFRICA SWEDEN TAIWAN U K U S A D LINK AUSTRALASIA Unit 16 390 Eastern Valley Way Roseville NSW 2069 Australia TEL 61 2 9417 7100 FAX 61 2 9417 1077 TOLL FREE 1800 177 100 Australia 0800 900900 New Zealand URL www dlink com au E MAIL support dlink com au info dlink com au D LINK CANADA 2180 Winston Park Drive Oakville Ontario L6H 5W1 Canada TEL 1 905 829 5033 FAX 1 905 829 5223 BBS 1 965 279 8732 FREE CALL 1 800 354 6522 URL www dlink ca FTP ftp dlinknet com E MAIL techsup dlink ca D LINK SOUTH AMERICA Isidora Goyenechea 2934 of 702 Las Condes Santiago Chile TEL 56 2 232 3185 FAX 56 2 2320923 URL www dlink cl E MAIL ccasassu dlink cl tsilva dlink cl D LINK DENMARK Naverland 2 DK 2600 Glostrup Copenhagen Denmark TEL 45 43 969040 FAX 45 43 424347 URL www dlink dk E MAIL info dlink dk D LINK MIDDLE EAST 7 Assem Ebn Sabet Street Heliopolis Cairo Egypt TEL 202 2456176 FAX 202 245619
5. Still in Network Configuration IP Configuration submenu from Step 2 above choose IP Stack Configuration LAN Enter a valid IP address for the LAN in the first item You may also enter a Netmask if you wish For more information about IP Addresses and Subnet masks please refer to Appendix B Concepts Position the cursor on the Save option at the bottom of the screen and press Enter to save the new setting Choose EXIT in the sub menus to return to the Main Menu 4 Enable the Telnet Discovery function on the router From the Main Menu choose Advanced Functions Choose the Telnet Discovery Enable option and then Enable Telnet State Position the cursor on the Save option at the bottom of the screen and press Enter to save the new settings Choose Exit in the sub menus to return to the Main Menu 14 DI 206 ISDN Remote Router The router can now be accessed via the LAN by Telnet the Web based DI 206 Router Configuration Utility included with the router and other SNMP management applications If you have any questions regarding the settings you made or other settings in the submenus please refer to the next chapter Configuration and Management Step 8 Plugging in Devices You can now plug in and power on all other devices connected to the router Do not power on the router yet The router is now able to use the LAN ports The router must be further configu
6. ceeeessensenesnsnnesnneennnnn 27 Admin istration Configuration 66 Advanced Functions eese 29 no 72 ARP request eerte ertet 31 Auth Type esit pedes 30 automatic timeout eeeeeeeeeensessnnneneenennnenn 17 B B Bearer 15 29 Bandwidth Allocation Control Protocol 2 Bandwidth Allocation Protocol 2 Bandwidth on Demand 29 Bandwidth On Demand See BOD BAP See Bandwidth Allocation Protocol Bechariniel rs ne 30 BODIE eene eis 2 Boot File Name nn 88 Boot Protocol etenean 87 Boot Server IP 87 BootP amp TFTP ud s cite ee 87 Bridging re 1 2 C Caller IID 3 ub 34 37 Challenge Handshake Authentication Protocol Bun Tal ditte te See CHAP e hee E 2 20 Gode scheinen 74 75 Configuration sse 16 Configuration File ssessss 102 Configuration File Example 102 Connection Test 77 COMNEC ONS eene 29 Console eto e Besen 9 10 Console program see 16 Console Program eee 10 16 COUNTER 67 71 D D ch nnel heces eet 29 t 76 default gateway esee 37 default l gin
7. 16 default next hop router 31 DHCP 3s ich area 38 DiagnostiG teens ttftt TI Diagnostic pOIt eeeeenessnesnnesnnesnensnensnennnennnn 9 Dial on Demand nenn 32 104 Dial On Demand eese 2 iis or ERR 29 33 dial in network connection 30 Dial In User Connections 29 Dial in User 63 Dial In User Profile 29 32 Dial in users ccccccccceesssecececeesssseceeeeeceenens 29 dial out connections 29 Dial Out Network Connections 30 Direction iue E 36 IB E 61 DNS Cache State 61 DNS Configuration 61 DNS Domain 61 eH tini 40 Domain Name 40 Dynamic Host Configuration Protocol 2 Dynamic IP Pool eeeeeeess 39 Dynamic NAPT eee 57 Dynamic NAT RR c 56 E EEPROM 16 Event Error Log eee 73 Execute Bootload 88 89 F Factory Reset 88 Lax EE 29 Filter Configuration eee 42 Filter State of Interface 43 firewall esee RR 50 flash memory edet 87 Flash memory eee
8. Additional Installation Requirements In addition to the contents of your package there are other hardware and software requirements you need before you can install and use your router These requirements include AnISDN line Ethernet connection s to your computer s Acomputer equipped with an RS 232 port and communications software configured to the following parameters WT100 terminal emulation 9600 baud No parity 8 data bits 1 stop bit After the router has been successfully connected to your network you can make future changes to the configuration using a Telnet client application DI 206 ISDN Remote Router Installation This chapter outlines how to connect your DI 206 to your LAN and ISDN line Refer to the diagrams below to identify all of the ports on your device when you make connections Ordering Your ISDN Line If you do not have an ISDN line installed already we suggest that you order it from your telephone company as soon as possible to avoid the long waiting period common when ordering a new line Use the information in this section to place the order If you have already installed your ISDN line you can check the following section to make sure that you can use all the features of your DI 206 1 Contact your local telephone company s ISDN Ordering Center 2 Make sure DSS1 switches are available since these are the only switch types currently supported by the DI 206 3 When th
9. Port Number 0 1 1 SAVE EXIT Items in the above submenu are described as follows RADIUS State Enables or disables RADIUS 92 DI 206 ISDN Remote Router Type Refers to the type of external password protocol Currently only Radius is supported Server IP Address This is the IP Address of your UNIX or NT based Radius server Port The port number for the Radius server The standard port number specified by RFC 1700 is 1812 shown above Key This is a shared secret used to identify the DI 206 as a valid Radius client The Key password should be stored in the c1ient file in the RADIUS server s etc raddb directory Lines of the form Client Name Key 192 168 0 1 dlink customer should be added to the client file The Client Name field in the file gives the IP address of the DI 206 and the Key field should be the same as the Key field in the Radius Configuration submenu After a RADIUS server has been configured the DI 206 will use it to authenticate all users instead of checking it s internal Dial Up User Profile Adding Users to the RADIUS Database The DI 206 only uses the RADIUS database for user authentication Except for the User Name Password and Framed Address fields most standard RADIUS attribute fields are ignored by the DI 206 To add a user to the RADIUS database edit the users file in the RADIUS server s etc raddb directory and add a line
10. System LAN System ISDN EXIT Connection Test This feature tests a dial out ISDN connection Connection Test Interface ENEA Phone Number Connection Test Dial Out Hang Up EXIT The parameters are described as follows Interface The ISDN B channel to be tested Phone Number The phone number that will be dialed by the ISDN Interface Please ensure that a modem answers the phone on the other end 77 DI 206 ISDN Remote Router Ping Test Connection Test Position the cursor over this item and press Enter to begin the test The router will dial the phone number defined above try to establish a valid link with the answering ISDN device and hang up This test can only be performed if the Interface is disabled in the Interface Configuration ISDN submenu Dial Out Press Enter to begin the test The router will dial the phone number above and negotiate a connection with the answering device In order for this test to work a Remote Network Profile must be created for the connection Hang up Press Enter to hang up after Dialing Out This test makes sure there is an IP network connection to a particular IP address IP Ping Test IP Address Count Delay lOms 10 Start Ping Test The parameters are described as follows Loopback Test IP Address This is the IP Address of the device that the router will attempt to reach The router
11. 0050B40067C2 DOOO0ES36B68A OOOOF4631B5B 0080089516887 0050 0005 6 0080 8 615 oosocsssssss 000000002000 0080 8 713 5 000084905011 DO0SOCSF6D284 0080 8680 21 004005000023 0080 8 64 88 0050BA000A98 0080 85828 6 0000 82 69 3 0080 8 6 08 P Address This is the network layer IP address MAC Address This is the data link MAC address PPP Table The PPP Table allows you to display the interface and link status for either ISDN Link 1 or ISDN Link 2 from the PPP Status sub menu PPP Status Interface ISDN1 Link Dom EXIT nterface The desired interface Link Down The present link status 72 DI 206 ISDN Remote Router Log and Trace This feature files events and errors that occurred and allows individual packets to be captured in a buffer These items are to help D Link technical support personnel identify problems that may be affecting your router If problems occur with your router D Link technical support personnel will guide you through the use of these features 7 4 Log and Trace 1 Event Error Log 2 Trace Buffer 3 Packet Triggered Last Call EXIT Event Error Log 7 4 1 Event Error Log l Log Configuration 2 View Log File Log Configuration 73 DI 206 ISDN Remote Router 7 4 1 1 Log Configuration Log State BD isablem SAVE EXIT This option al
12. Multiple Home Configuration Besides the IP address assigned to the LAN interface in the Network Configuration menu the LAN may have up to 3 additional IP interfaces These additional IP interfaces are referred to as MIP1 to MIP3 This type of configuration is known as a multiple home configuration 47 DI 206 ISDN Remote Router 5 4 Multiple Home Configuration Multiple Home can be demonstrated by this example A company has 625 users computers all connected to one physical network using Ethernet However the company only has one Class C IP network address 202 100 160 0 This network address will only support 254 users To solve the shortage of IP address problem and to plan for future growth the company applies for and receives two more Class C IP network addresses 203 101 161 0 and 204 102 162 0 This gives the company a total of 254 x 3 2 762 IP Addresses which it assigns to the computer users with a few left over for future needs Due to the nature of IP networks however the users in one IP network domain 202 100 160 0 for example cannot communicate with users on a different IP domain 203 101 161 0 Multiple home solves this problem When you register the additional IP network addresses in the Multiple Home Configuration menu on the router the router will route data between the three IP networks using the single LAN In this router multiple home configurations only apply to the LAN interface IP Address
13. Router Advertisement Enable gt IP Stack Configuration The network interface IP address mask and protocols are specified in the IP Stack Configuration submenus The screens for both the LAN and ISDN interfaces are shown below IP Address Netmask 255 0 0 0 Forwarding Enable RIP Routing Protocol lt RIPVl gt RIP Routing Mode Both gt IP Multicasting Disable Multicast Protocol None gt IGMP Version V2 DHCP Client Disable Proxy Arp Disable ICMP Redirect Disable SAVE EXIT 22 DI 206 ISDN Remote Router ISDN Link 1 IP Address l 210 11 22 3 Netmask 255 255 255 0 State IP Stack gt RIP Routing Protocol RIPVl gt RIP Routing Mode None gt IP Multicasting Disable Multicast Protocol None IGMP Version V2 RIP Spoofing lt 1 gt Proxy rp lt Disable gt ICMP Redirect Disable The parameters are described below e P Address This is the IP address for the router on the network to which this interface is connected e Netmask This is a 32 bit bit mask that shows how the IP address is to be divided into network subnet and host parts The netmask has ones in the bit positions in the 32 bit address which are to be used for the network and subnet parts and zeros for the host part The mask should contain at least the standard network portion as determined by the address s class and the subnet field should be c
14. Description Branch Office ISDN 1 Switch Type DSS 1 Bl Channel Usage lt Switch gt BZ Channel Usage lt Switch gt Country ID 5 ISDN Data A B Adapter 1 Adapter 2 Phone 1 Call Waiting Disable Phone 2 Call Waiting Disable POTS Lines Enable gt Global Reception Enable gt Block Outgoing CLID Disable Inbound Authentication lt AUTH_PAP gt Call Bumping Disable State Enable gt EXIT The parameters are described below Description This is a user defined 32 character identifier used to name the ISDN 19 DI 206 ISDN Remote Router e Switch Type This parameter defines the type of ISDN service used Currently the DI 206 only supports DSS 1 type ISDN lines e B1 and B2 Channel Usage This defines whether the ISDN line is a leased line or a normal switched line If you are not using a leased line connection set this item to Switch Country ID This field needs to contain the country parameter Without this information the router cannot establish a connection A list of country ID numbers is located in Appendix E Country ID Numbers e ISDN Data This field must contain the incoming telephone number for data calls In other words it is your ISDN line s data phone number A B Adapter 1 and 2 Enter the telephone numbers for your voice analog lines Phone 1 and 2 Call Waiting If you have applied for and received call waiting capabilities for
15. Meppen Range 12 SAVE EXIT The items are described as follows 32 DI 206 ISDN Remote Router IP Address This is the first IP Address that will be assigned to a dial in user e Range This is the number of IP Addresses that can be assigned In the window shown above dial in users will be assigned the IP Addresses 170 100 200 1 or 170 100 200 2 only two are necessary since the router used in the examples has only two ISDN ports ISDN Link 1 This submenu contains a number of settings shown below which allow you to configure the router to dial out 5 5 1 Dial Configuration ISDN LINK 1 Dial Retry Time 1 Dial Retry Count 3 Call Back Delay 120 SAVE EXIT The parameters are described below Dial Retry Time This is the time in seconds the router will wait before the next dial attempt Dial Retry Count This is the specified maximum number of dial attempts the router will make when trying to establish a connection on this interface Call Back Delay This is the time in seconds the router will wait before a remote user is called back Dial In User Profile The Dial In User Profile is used to configure the DI 206 for single users for example a person working at home to dial in to the router and gain access to the network At least one User Profile must be configured for each user who will dial in in conjunction with Dial Configuration settings Please not
16. Note that performing a system reset clears ALL tables in the router including the routing table LAN Counter Table 67 DI 206 ISDN Remote Router LAN Tx Packets 3872 Rx Packets 52106 Tx Bytes 291661 Rx Bytes 4979372 Tx Discard Packets 0 Rx Unknown Packets 140081 Tx Error Packets Rx Discard Packets 0 Tx Collision Packets 0 Rx Error Packets Tx Abort Packets 0 Rx CRC Packets Tx Underrun Packets 0 Rx FAE Packets Rx Overrun Packets Rx MPA Packets Rx DFR Packets oooooo e Tx Packets The total number of valid packets transmitted by the router since the last reset e Tx Bytes The total number of bytes transmitted by the router Tx Discard Packets The number of packets dropped by the router Tx Error Packets The number of invalid packets transmitted by the router This hardware counter shows the sum of Collisions Abort and Underrun packets Tx Collision Packets The number of packets sent out of the router that collided on the line Some collisions are inevitable due to the shared nature of Ethernet Excessive collisions show excessive utilization of the network Tx Abort Packets When the router transmits a packet and a collision occurs the router will wait a random period and try to retransmit the packet If a collision occurs 16 times in a row the transmission will be aborted and be logged by this counter aborted packet shows extremely heavy utilization of the network e
17. type of router e System Up Time Shows how long the router has been running since the last power off or reset e System Contact Enter the name of the department or individual responsible for maintaining the router 17 DI 206 ISDN Remote Router e System Name Give the router a descriptive name for identification purposes e System Location Enter the geographic location of the router e Console Telnet Display Timeout in Minutes 0 90 This is a security measure to automatically logoff from the console menu after a given idle time Enter a timeout time between 0 and 90 minutes Zero specifies no timeout e System MAC Address The physical address of this router e ISDN Switch Type The type of ISDN switch used by the telephone company that the DI 206 can communicate with The DI 206 currently supports only the DSS1 switch type Interface Configuration The second item on the Main Menu is the Interface Configuration screen which is used to configure the LAN and ISDN interfaces 2 Interface Configuration 18 DI 206 ISDN Remote Router LAN Description 104442 Operation Mode lO0TX HD State Enable SAVE EXIT The parameters are described below Description This is a user defined 32 character identifier used to name the LAN e Operation Mode The LAN port is IOBASE T only e State This is a toggle to Disable or Enable the LAN interface ISDN
18. Channels can also carry voice and fax calls which are routed to the telephone jacks located on the rear of the router Please note however that the DI 206 can maintain only two connections at a time via the two B channels whether the connections are voice data dial in users remote networks or a combination thereof Remote Operation Overview The DI 206 is very flexible and can be configured for a variety of remote connections Since configuring the router can be quite complex depending on the number and type of remote connection s you wish to implement we have described some of the basic functions and procedures below Dial In User Connections Dial in users are defined as a single user on a computer such as a person working at home who dials into the office to use network resources In almost all cases a Dial In User Profile needs to be set up for each user who will dial in to the router so the router can tailor the connection for each user Once this is done the remote user will 29 DI 206 ISDN Remote Router Remote be able to use network resources as if he were connected locally When the user dials into the DI 206 the call comes into the D channel and after answering the phone the DI 206 1 Identifies the Username and Password using the authentication protocol defined in the Interface Configuration ISDN submenu The dial in user is not prompted for this information but must enter it into his dialing software
19. EXIT The fields in the above window are described as follows Telnet State This feature enables or disables the router s ability to be configured over the LAN using telnet Discovery Function Enabling this feature allows the router to be auto discovered by D Link SNMP management software and the included Windows based configuration software called RouteMan 60 DI 206 ISDN Remote Router DNS Configuration The DI 206 router has a built in recursive DNS server The maximum amount of memory that will be used by the router s Domain Name Server is 64Kb which averages out to be about 800 entries In other words up to 800 domain names and their associated IP Addresses can be stored which can significantly speed up access to those domains The routers DNS table will age out about every 24 hours ensuring that the most frequently accessed domains consistently benefit from the improved access times provided by using the routers own DNS The IP Addresses for domain names not stored in the router must be acquired from a DNS server on the Internet Thus if you are using DNS make sure you also specify an IP Address to a DNS server in the Forward DNS queries to field 5 8 DNS Configuration DNS Server State Lookup Host Table DNS Domain Name dlink com Forward DNS queries to 144 13 12 1 DNS Cache State Enable gt Host Table The items in the above submenu are described as follows e DNS Se
20. If the loopback test succeeds then your physical connection to your phone company is ok and the problem probably lies in your ISDN settings located in the console program under nterface Configuration ISDN Alternatively the problem could be with the router or computer you are trying to call Problems with the LAN Interface Can t PING any station on the LAN 1 Check the LAN LED on the front panel of your router If it is on then the link is up If it is off then check the cables connecting the router to your LAN 2 Make sure the LAN is enabled in the Interface Configuration LAN submenu of the console program 94 DI 206 ISDN Remote Router Verify with your network administrator that the IP address and the IP subnet mask configured in the Network Configuration IP Configuration IP Stack Configuration LAN submenu of the console program are valid for that LAN Check the physical Ethernet cable and make sure the connections on the router and the hub or station are secure Check to make sure an end station IS NOT connected to the Uplink port or that a hub IS connected to the Uplink port using straight through cables Check to make sure the wires in the cable are attached to the appropriate pins in the RJ 45 connector 95 DI 206 ISDN Remote Router Appendix B IP Concepts This appendix describes some basic IP concepts the TCP IP addressing scheme and show how to assign IP Addresses When setting up the
21. Stromnetz die Anschlu werte Die Netzanschlufisteckdose muf aus Gr nden der elektrischen Sicherheit einen Schutzleiterkontakt haben Verlegen Sie die Netzanschlu leitung so da niemand dar ber fallen kann Es sollete auch nichts auf der Leitung abgestellt werden Alle Hinweise und Warnungen die sich am Ger ten befinden sind zu beachten Wird das Ger t ber einen l ngeren Zeitraum nicht benutzt sollten Sie es vom Stromnetz trennen Somit wird im Falle einer Uberspannung eine Besch digung vermieden Durch die L ftungs ffnungen d rfen niemals Gegenst nde oder Fl ssigkeiten in das Ger t gelangen Dies k nnte einen Brand bzw Elektrischen Schlag ausl sen ffnen Sie niemals das Ger t Das Ger t darf aus Gr nden der elektrischen Sicherheit nur von authorisiertem Servicepersonal ge ffnet werden Wenn folgende Situationen auftreten ist das Ger t vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu berpr fen Netzkabel oder Netzstecker sint besch digt b Fl ssigkeit ist in das Ger t eingedrungen c Das Ger t war Feuchtigkeit ausgesetzt d Wenn das Ger t nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen e Das Ger t ist gefallen und oder das Geh use ist besch digt f Wenn das Ger t deutliche Anzeichen eines Defektes aufweist Bei Reparaturen d rfen nur Orginalersatzteile bzw den Orginalteilen entsprech
22. Tx Underrun Packets Runt packets The number of packets transmitted by the router that are less than the allowed 64 octets minimum length Underrun packets occur due to jam signals generated by collisions backpressure etc e Rx Packets The number of valid packets received by the router e Rx Bytes The total number of bytes contained in the valid packets received by the router Rx Unknown Packets The number of packets received by the router that were of an unsupported protocol e Rx Discard Packets The number of packets dropped by the router Rx Error Packets The number of invalid packets received by the router This hardware counter shows the sum of CRC FAE Overrun MPA and DFR error packets Rx CRC Packets The number of packets received that failed CRC checksum test 68 DI 206 ISDN Remote Router Rx FAE Packets Frame Alignment Error The number of packets received that does not end on a byte boundary and the CRC does not match e Rx Overrun Packets The number of packets received that exceed the 1518 octet maximum length imposed on Ethernet packets Overrun packets are generated by some proprietary software applications e Rx MPA Packets Missed Packet This is a count of packets intended for the router but at the time the router could not receive the packet usually due to the temporary lack of receive buffers Rx DFR Packets Deferred Packets This is a cou
23. before dialing 2 Checks the Username and Password against those defined in the Dial In User Profiles and Remote Network Profiles 3 Assuming a matching Dial In User Profile is found the router may configure the IP address of the remote station as defined in the Dial In User Profile 4 Configures a dial in Interface a virtual circuit to handle the connection 5 Establishes the connection on whichever B channel physical port is open by mapping the dial in interface to that port 6 Inthe case where the Dial In User does not need to supply a Username and Password Auth Type is set to None in the Interface Configuration submenu the remote computer must have its own IP address Network Connections Remote networks are defined as other networks LANs that have WAN connections using a router Internet server network modem or similar device in this document however we will assume the remote device is a router In almost all cases a Remote Network Profile needs to be set up for each network that will connect to the DI 206 via the ISDN lines The Remote Network Profiles are necessary for the router to identify and tailor the connection to the remote network s router Once this is done a connection between the two routers can be made and computers on each network can communicate with each other Dial In Network Connections A dial in network connection is very similar to a dial in user connection When the remote router dials into th
24. between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Shielded interface cables must be used in order to comply with emission limits You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation CE Mark Warning This is a Class B product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Limited Warranty Hardware D Link warrants each of its hardware products to be free from defects in workmanship and materials under normal use and service for a period commencing on the date of purchase from D Link or its Authorized Reseller and extending for the length of time stipulated by the Authorized Reseller or D Link Branch Office nearest to the place of purchase This Warranty applies on the condition that the product Registration Card is filled out and returned to a D Link office within ninety 90 days of purchase A list of D Link off
25. changes made here as they are necessary for logging into the console program System Maintenance Your console program includes many useful tools for maintaining your device These tools include updates on system status upgrades to the system software analysis diagnostic tools and more This section will describe how to use these tools in greater detail The System Maintenance sub menu appears as follows System Maintenance Statistics Runtime Tables Log and Trace Diagnostic Software Update System Restart Factory Reset System Settings Backup Restore L 2 3 4 5 6 8 9 System Status The System Status submenu displays key information about the router and appears as follows 66 DI 206 ISDN Remote Router Statistics Counter Port Protocol Link Speed Tx Pkt LAN LLC Up 10HD 3700 ISDN Bl Switch Down 64000 0 ISDN B2 Switch Down 64000 0 Model Name DI 206 Build Time May 26 22 02 23 2000 ISDN Version 1 06 ISDN Bl CLID ISDN B2 CLID 7 1 System Status System Information Firmware Version 1 81 Config Version Dil Under the Statistics submenu counter tables are displayed for LAN ISDN B1 and ISDN B2 7 2 Counter EXIT This feature displays some of the counters contained in MIBII and the proprietary MIB The table is updated every 5 seconds and the counter table can be reset by performing a system reset on the router
26. configuring this filter 5 3 3 IP Filter EXIT Select an entry above and then press Enter The following screen appears Name _ Direction In gt State Disable Interface LAN gt Protocol 16 Src IP 0 0 0 0 Src Netmask 0 0 0 0 Src Port o Src Port Operation lt None gt Dst IP 0 0 0 0 Dst Netmask 0 0 0 0 Dst Port o 1 Dst Port Operation EQ gt ICMP Type ICMP Code TCP Flag The IP Filter parameters are described below e Name This is a 12 character maximum alphanumeric user defined name used to identify the filter Direction This defines the direction of the packet relative to the Interface parameter below e State This is used to define the routing decision applied to the packet The three routing decisions are described 1 forward This allows the routing of the packet if it has met the criteria of the corresponding filter 46 DI 206 ISDN Remote Router 2 drop This drops doesn t allow routing for a specific packet that has met the criteria of the corresponding filter 3 disable This does not apply the IP filter Interface This applies the filter to a specific interface LAN or one of the ISDN interfaces Protocol Type This is a protocol identifier as assigned by the Internet Assigned Numbers Authority IANA The values of this identifier are described in RFC 1700 This router supports the following 1 Th
27. invalidates the use SNMP Community String by setting the string to Valid or Invalid Note that setting the use of the string to Invalid is the same as removing the string however the string remains so as to be validated at an appropriate time SNMP Trap Manager Configuration From the SNMP Agent Configuration menu select and enter the SNMP Trap Manager sub menu You will see the following configuration screen 4 2 SNMP Trap Manager IP Address SNMP Community String State 1 Invalid lt Invalid gt Invalid Invalid 1 Invalid SAVE EXIT The parameters are described below e IP Address Enter the IP address of the host who will act as an SNMP Management Station The DI 206 router will send SNMP traps to these addresses SNMP Community String The community string is a user defined identifying name used to group together some arbitrary set of SNMP application entities managed by the network manager Traps will be sent to the IP Address previous parameter as long as the corresponding Community String in the Management Station s trap manager software is the same e State This validates or invalidates the use of the SNMP Community String by setting the use of the string to Valid or Invalid Note that setting the string to Invalid is the same as removing the string however the string remains so as to be validated again at an appropriate time SNMP Authenticated Trap Return
28. made first power on the console If you are using a PC run the terminal emulation software at this time After the PC and the terminal emulation software are up and running power on the router DI 206 ISDN Remote Router Using the Console The Console Program is the interface that you will be using to configure your DI 206 Several operations that you should be familiar with before you attempt to modify the configuration of your router are listed below Moving the Cursor Within a menu use tab and arrow keys to navigate through different information fields Moving Forward to Another Menu To move forward to a sub menu below the current one use tab or arrow keys to position the cursor on the sub menu item and press Enter to view the selected sub menu Entering Information There are two types of fields that you will need to fill in The first requires you to type in the appropriate information The second gives you choices to choose from In the second case press the space bar to cycle through the available choices Upon configuring all fields the sub menu position the cursor on SAVE and press Enter to save or position the cursor on EXIT to cancel Refresh Screen Console screens are notorious for becoming garbled When this happens simply press Ctrl R to refresh the contents of the screen Step 3 Connecting an ISDN Line to the Router Your phone company will provide an S T interface into your
29. telnet the DI 206 router must first be configured using a console connected to the RS 232 Diagnostic port Depending on the placement of the management station using telnet the initial configuration requirements for the router are as follows Using Telnet via LAN Preparing the router for management by telnet over the LAN only requires enabling the LAN port enabling telnet and assigning the LAN port an IP address To do this 1 Connect a console to the RS 232 Diagnostic port on the front panel of the router and run a terminal emulation program for more information see Connecting the Console to the Router and Setting Up the Console sections of this manual 2 Enable the LAN port in the Interface Configuration sub menu 3 Assign an IP address to the LAN port in the Network Configuration sub menu 4 Enable Telnet in the Advanced Functions submenu 5 Connect the router to the LAN The router can now be accessed via the LAN by the included Windows based Configuration program Telnet and SNMP management applications For more detailed information regarding these procedures please refer to the Connecting the Router section of this manual For more information about the submenus please refer to the Configuration and Management section of this manual Using Telnet via ISDN Preparing the router for management by telnet over ISDN lines requires more initial configuring of the router via the console To do this you must configure an I
30. the remote user can only be 34 DI 206 ISDN Remote Router calling from the telephone number defined here otherwise the call will not be accepted This function is disabled if the field is left blank Default IP This is the IP address that will be assigned to the dial in user when the IP Address Supply setting below is set to Default Assigning an IP address to the remote computer ensures that the IP address does not clash with other IP addresses on your network IP Address Supply This field defines how the remote user will obtain an IP address The choices include Default Uses the Default IP address defined above Dynamic Taken from the Dial In IP pool or None The remote user supplies his own IP Address Call Back This field determines if the router will allow call back to the Remote Dial In User upon dial in If this option is enabled the router will be able to call back to the Remote Dial In User if they request it In such a case the router will disconnect the initial call from this user and dial back to the specified call back number The default is no call back Phone Number Supplied by Toggle between Router and Caller Phone Number If Router is selected above then this phone number is usually provided by the person who initially set up the router If Caller is selected you must enter the phone number that will be called back yourself Idle Time This is the elapsed time in seconds since the last
31. valid or active packets have gone through the router This setting will trigger the router to disconnect this interface when it is reached State Enables or disables this User Profile Remote Network Profile The Remote Network Profile is used to configure the router for ISDN connections to other networks In practice the DI 206 will either dial out to or receive incoming calls from another router the gateway to the other network 35 DI 206 ISDN Remote Router 5 1 3 Remote Network Profile OJAN AUNE EXIT Select the desired entry from the screen above Remote Name 1 12 Direction Out gt Interface ISDN Ll Phone 555 6969 1 Idle Time 1 Set Peer IP as default Gateway lt Disable gt Incoming Name Branch 2 Password Rem CLID 555 6969 1 CallBack Disable Outgoing Name Branch 2 Password 1 Remote IP Address 0 0 0 0 IP Address Supply None gt Multi Link PPP Disable Compression Disable State Enable gt Connect Test SAVE EXIT The parameters in the above window are described as follows Remote Name Name for the remote network that DI 206 is being set up to connect with Direction Dial n dial Out or Both This field defines whether the router on the other network will dial n to the DI 206 to establish a connection the DI 206 will dial Out to the other network or a connection can be established Bot
32. 0 0 0 0 Disable 4 0 0 0 0 lt Disable gt 5 0 0 0 0 lt Disable gt 6 0 0 0 0 t Disable 7 0 0 0 0 Y E Disable 8 0 0 0 0 I rk Disable EXIT Items are described as follows e P The IP address for the host Host Name The host name used by the host e State Enables or disables entry 62 DI 206 ISDN Remote Router Radius Configuration Radius is an authentication protocol where passwords are stored on a Radius server Radius allows large numbers of passwords to be stored in a centralized location Before instituting Radius please setup and install a Radius server on the LAN 5 9 RADIUS Configuration RADIUS State Type RADIUS Server IP Address 0 0 0 0 Port Number o 1 1 SAVE EXIT Items in the above submenu are described as follows RADIUS State Enables or disables Radius When enabled all settings in the Dial in User Profile are disabled Type Refers to the type of external password protocol Currently only Radius is supported Server IP Address This is the IP Address of your UNIX or NT based Radius server Port The port number for the Radius server The standard port number specified by RFC 1700 is 1812 shown above Key This is a shared secret used to identify the router as a valid Radius client The Radius authentication service works for dial in users only Thus when Radius is enabled pass
33. 16 Forward DNS queries 0 61 Forwarding 23 Front panel LED Siirrot ieissar 6 ETP Serveis ee ns e rere 58 G Gate Way conse dieere tene 25 26 40 Gateway address sess 31 Gateway IP address 51 Global Interface e 55 global IP 50 H RN een ete 25 HOst Namiesa s can Pte tete 62 I TEMP ee i ee stet ide 47 DI 206 ISDN Remote Router Idle Dime 37 IGMP uses 24 image Re 87 Impostotr unten anne 49 Initial Configuration 12 16 installation 108 Interface usi ote RE 31 37 Interface Configuration 18 30 Internet sss 3 31 IP 23 28 50 86 IP Address Supply sues 35 Addresse Sinn 96 IP Concepts hog eee neces 96 IP EIGE indeed ets 43 45 IP Multicasting eene 24 IP Network Classes 96 IP Networking 26 IP Port Numbers en 98 IP Protocol 2 2 22 2 aa 98 IP Protocol 98 IP STACK essent 23 IP Stack Configuration 22 IP Sta
34. 2 URL www dlink me com E MAIL support dlink me com fateen dlink me com D LINK FRANCE Le Florilege 2 Allee de la Fresnerie 78330 Fontenay Le Fleury France TEL 33 1 30238688 FAX 33 1 3023 8689 URL www dlink france fr E MAIL info dlink france fr D LINK GERMANY Bachstrae 22 D 65830 Kriftel Germany TEL 49 0 6192 97110 FAX 49 0 6192 9711 11 URL www dlink de BBS 49 0 6192 971199 Analog 49 0 6192 971198 ISDN INFO LINE 00800 7250 0000 toll free HELP LINE 00800 7250 4000 toll free REPAIR LINE 00800 7250 8000 E MAIL mbischoff dlink de mboerner dlink de D LINK INDIA Plot No 5 Kurla Bandra Complex Road Off Cst Road Santacruz E Bombay 400 098 India TEL 91 22 652 6696 FAX 91 22 652 8914 URL www dlink india com E MAIL service dlink india com D LINK ITALY Via Nino Bonnet No 6 b 20154 Milano Italy TEL 39 02 2900 0676 FAX 39 02 2900 1723 E MAIL info dlink it URL www dlink it D LINK JAPAN 10F 8 8 15 Nishi Gotanda Shinagawa ku Tokyo 141 Japan TEL 81 3 5434 9678 FAX 81 3 5434 9868 URL www d link co jp E MAIL kida d link co jp D LINK RUSSIA Michurinski Prospekt 49 117607 Moscow Russia TEL 7 095 737 3389 7 095 737 3492 FAX 7 095 737 3390 E MAIL vl dlink ru D LINK INTERNATIONAL 1 International Business Park 03 12 The Synergy Singapore 609917 TEL 65 774 6233 FAX 65 774 6322 URL www dlink intl com E MAIL info dlink com sg D LINK SOUTH AFRICA Unit 2 Parkside 86 Oak Avenu
35. 4 Lease Time 72 DNS IP 140 113 1 1 WINS IP 0 0 0 0 Domain Name dlink com State Disable The parameters are described below IP Address This is the base starting address for the IP pool of IP addresses to be assigned Range This is the range of contiguous IP addresses above the base IP Address above In the above example the IP addresses assigned host computers as they come onto the network would be 202 93 47 1 202 93 47 2 202 93 47 100 Netmask This mask informs the client how the destination IP address is to be divided into network subnet and host parts The netmask has ones in the bit positions in the 32 bit address which are to be used for the network and subnet parts and zeros for the host part Gateway This specifies the Gateway IP Address that will be assigned to and used by the DHCP clients Lease Time This specifies the number of hours a client can lease an IP address from the dynamically allocated IP pool The maximum value is 65535 and a value of 0 means the lease is permanent DNS IP This specifies the Domain Name System server used by the DHCP clients using leased IP addresses to translate hostnames into IP addresses or vice versa WINS IP This specifies the IP address of the Windows Internet Naming Service server This server has software that resolves NetBIOS names to IP addresses Domain Name This is the common suffix shared by networked hosts used to re
36. 64kps 51 2kps the router will sample the line for an additional 5 seconds If the traffic continuously exceeds 80 for the 5 second delay time ISDN 2 will dial up and add bandwidth to the connection Assuming sustained traffic of 70kps MLPPP will balance the traffic on the two ISDN ports so they are handling roughly 35kps each If the traffic on ISDN 1 ISDN 2 falls below 20 of the 128kps connection 25 6kps for more than 10 seconds ISDN 2 will hang up and all traffic will be handled by ISDN 1 For the above configuration to work both ISDN ports need to have been properly setup to establish dial out PPP connections and have Multi Link enabled Also note that ISDN 1 being the B channel that initiated the call in the MLPPP bundle and thus the primary link is not subject to the BOD Low Threshold parameter and will never hang up due to BOD considerations The primary link can however be subject to Dial on Demand DOD settings and could thus disconnect if Dial on Demand is enabled and the Idle Time parameter is met Dial on Demand settings are located in the Advanced Functions Dial Configuration submenu Admin Configuration This feature allows you to define two names and two passwords respectively for logging in to the router for configuration and management and is shown below 65 DI 206 ISDN Remote Router 6 Admin Configuration Name Password Admin lI 1 Guest Guest ll 1 SAVE EXIT Please note any
37. D Link DI 206 ISDN Router User s Guide Rev 04 July 2000 6DI206 04 Printed in Taiwan RECYCLABLE Copyright Statement Copyright 2000 D Link Corporation No part of this publication may be reproduced in any form or by any means or used to make any derivative such as translation transformation or adaptation without permission from D Link Corporation D Link Systems Inc as stipulated by the United States Copyright Act of 1976 Trademarks D Link is a registered trademark of D Link Corporation D Link Systems Inc other trademarks belong to their respective owners FCC Warning This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna Increase the separation
38. D Link or its Authorized Reseller D Link warrants the magnetic media on which D Link provides its software product against failure during the same warranty period This warranty applies to purchased software and to replacement software provided by D Link pursuant to this warranty but shall not apply to any update or replacement which may be provided for download via the Internet or to any update which may otherwise be provided free of charge D Link s sole obligation under this software warranty shall be to replace any defective software product with product which substantially conforms to D Link s applicable product documentation Purchaser assumes responsibility for the selection of appropriate application and system platform software and associated reference materials D Link makes no warranty that its software products will work in combination with any hardware or any application or system platform software product provided by any third party excepting only such products as are expressly represented in D Link s applicable product documentation as being compatible D Link s obligation under this warranty shall be a reasonable effort to provide compatibility but D Link shall have no obligation to provide compatibility when there is fault in the third party hardware or software D Link makes no warranty that operation of its software products will be uninterrupted or absolutely error free and no warranty that all defects in the software product with
39. EXIT and perform a System Reset or Execute Bootload to begin the software download process After the new runtime software has been downloaded the router will automatically start up using the new software with the Software Update Control setting Disabled to avoid a downloading loop EEPROM Factory Reset Performing a factory reset erases all settings and tables All configuration changes ever made to the router will be deleted The router will be set to the factory defaults it was shipped with and will no longer have an IP address DI 206 Router Factory Reset re you sure you want to proceed with Factory Reset No x Connected 0 09 40 vr oo 8600 8 N 1 SCROLL CAPS NUM Capture Print echo Z Please make sure you wish to wipe out all settings and configure the router from scratch before you perform a factory reset Execute Bootload Choosing this option accepts the changes made in the PROM program and begins the router s startup sequence 88 DI 206 ISDN Remote Router Executing a bootload can also begin the Software Update procedure if enabled 89 DI 206 ISDN Remote Router Using Telnet The DI 206 router can be configured and managed using telnet Telnet accesses the same built in configuration program as the RS 232 Diagnostic port console connection As such all settings that can be adjusted through the console can also be configured using Telnet Telnet Configuration In order to use
40. Multi link PPP ISDN Protocols ISDN speeds ISDN BRI up to 128 000bps ISDN Interface Standard BRI S T 1 ISDN BRI port 64Kbps B channel x 2 16Kbps D channel x 1 ISDN network Compatibility Europe and Asia Supports DSS1 EuroISDN and Taiwan DGT switches and Siemens EWSD switches Data Compression Hi fn LZS Stac Compression Ratio 4tol Routing IP Packet Routing TCP IP with RIP 1 and RIP 2 static routes IPX Packet Routing DI 206M Novell IPX with RIP SAP Spoofing Bridging Transparent MAC layer bridging DI 206M 802 1d Spanning Tree DI 206M Other Protocols UDP TCP NAT DHCP BAP BACP ICMP Management SNMP MIB II Security PAP CHAP Administrative password Firewall filtering RADIUS 99 DI 206 ISDN Remote Router Physical amp Environmental DC Input External DC power adapter 18V 750mA unregulated or regulated Power Consumption 8 5W max Ventilation Fanless Operating Temperature 0 50 C 32 122 Storage Temperature 25 55 C 13 131 P Humidity 5 95 non condensing Dimensions 220mm x 166mm x 45mm 8 3 5 x 6 1 2 x 1 3 4 Emissions EMI FCC Class B VCCI Class B CE Mark Safety UL UL1950 CSA CSA950 100 DI 206 ISDN Remote Router Appendix E Country ID Numbers Please
41. NG PORT CABLE TO USE USED CONNECTED TYPE Normal Switch Straight Through Hub or Straight Server or Server orPC Crossover X The figure below shows how to make an Ethernet connection between the router and a network end node N RJ 45 connector RJ 45 connector Important Notes on Ethernet Connections Observe the following rules when connecting devices with twisted pair Ethernet cables For both end node and uplink connections use only EIA Category 3 or higher grade twisted pair data cables with RJ 45 plugs In almost all cases only standard straight through cables are needed e Make sure no cable is more than 100 meters 328 feet long e When uplinking two hubs together with a straight through cable use an uplink type jack at one end and an end node type jack at the other e If uplinking more than two hubs together observe the 5 4 3 rule no signal in order to go from one end node to another must ever pass through more than five twisted pair cables four repeaters that is hubs and three uplink cables 11 DI 206 ISDN Remote Router This is the maximum signal path in twisted pair Ethernet Also be sure never to allow a signal loop to form 10BASE T cable straight through wires Note that you can connect an end node through the Uplink jack but to do so you must u
42. SDN port for dial in users Please refer to the Interface Configuration ISDN submenu section of this manual 90 DI 206 ISDN Remote Router System Timeout When you are connected to your DI 206 via Telnet there is a system timeout in the System Information submenu adjustable to a maximum of 90 minutes If you are logged onto the device and leave it inactive for this timeout period the router will automatically disconnect you 91 DI 206 ISDN Remote Router Using RADIUS Authentication In addition to the dial in user list which can hold up to eight users this model also supports an external authentication server which may provide password storage and usage accounting for thousands of users Installing a RADIUS Server To use RADIUS authentication you will need to have a UNIX or Windows NT based machine on your network to act as a radiusd server as well as a copy of the radiusd server program itself You can obtain a copy of the RADIUS software along with documentation for the server at http www livingston com marketing products radius html or at ftp ftp livingston com pub le radius Configuring the DI 206 for RADIUS Authentication To configure the DI 206 to use the RADIUS server set up in the previous section go to the Main Menu in the console program and choose Advanced Functions and then RADIUS Configuration 5 9 RADIUS Configuration RADIUS State Type RADIUS Server IP Address 0 0 0 0
43. T Netnask 255 255 255 0 Routing Protocol RIPVI gt Routing Mode Both gt IP Multicasting Enable gt Multicast Protocol lt DVMRP gt IGMP Version lt VZ gt SAVE EXIT 48 DI 206 ISDN Remote Router Static ARP The parameters are described below e IP Address This is a network IP address of a separate IP network on the LAN Routing Protocol This is the same as in the Network Configuration screen section Keep in mind that these exchanges are made with adjacent routers on the LAN if present P Multicasting This enables disables IP multicasting on the IP network you are defining other parameters Netmask Routing Mode Multicast Protocol and IGMP Version are identical to those in the Network Configuration IP Stack Configuration ISDN screen section This special function is intended to speed up the process of finding a host s Ethernet MAC address from its network address and provides a special condition any other host acting as an impostor by using the same IP address as the legitimate host will be ignored by this router Basically when a packet comes into the router from the ISDN line and is destined for a host on the LAN the router will use information defined here to immediately send the packet to the host rather than send out an ARP request to find the host s MAC address 5 5 Static Configuration 1 2 3 4 5 6 Te 8 Select an ent
44. This value however must be constantly exceeded for the time designated in the Add Bandwidth Delay field before the next ISDN port dials out BOD Low Threshold 46 0 to 100 The throughput value as a percentage of total bandwidth which will cause the highest numbered ISDN port in the MLPPP bundle to hang up thus subtracting bandwidth from the connection Before actually hanging up however the throughput must be below this value for the time designated in the Subtract Bandwidth Delay field e Add Bandwidth Delay sec 0 to 300 The amount of time in seconds the router will wait and sample the BOD Criteria before adding bandwidth once the throughput exceeds the BOD High Threshold This prevents costly bandwidth from being unnecessarily added due to temporary bursts in traffic e Subtract Bandwidth Delay sec 0 to 300 The amount of time in seconds the router will wait and sample the BOD Criteria before subtracting bandwidth once the throughput falls below the BOD Low Threshold This prevents bandwidth from being unnecessarily subtracted due to temporary lulls in traffic The example Multi link PPP settings shown in the Multi Link PPP Configuration window above assumes that ISDN 1 and ISDN 2 each have a 64kbps connection configured to dial up to the Internet When ISDN 1 receives a packet destined for the Internet it will dial the ISP and establish a connection If the total throughput on ISDN 1 7X RX ever exceeds 80 of the
45. a remote DHCP server assigning IP addresses to local clients This can be useful if you wish to have all IP addresses in your company including those in branch offices assigned from a DHCP server centrally located at your headquarters for example 5 2 2 DHCP Relay Agent DHCP Server IP Address Time Threshold 5 State Enable gt SAVE EXIT Items are described as follows e DHCP Server IP Address This is the IP address of the remote DHCP server When a local computer powers up and sends a DHCP request for an IP address the DI 206 will forward the request to the address specified here Time Threshold This specifies the maximum amount of time in seconds since the host began requesting an IP address If the value define here is exceeded the relay agent will not pass along the request from the host e State Enables or disables the DHCP Relay Agent function Filter Configuration Your DI 206 uses filters configurable at two layers to screen packet data and apply a routing decision There are two methods for configuring filters you can configure a filter at the network layer IP filter to restrict access between networks and reduce unnecessary internetwork traffic and you can configure a filter at the data link layer a general filter to provide a protocol independent filter Good knowledge of network protocols is required to configure a specific filter appropriately It is important for t
46. a dial in connection The choices are Password Authentication Protocol PAP Challenge Handshake Authentication Protocol CHAP or None PAP and CHAP do not provide a screen for users to manually enter their Username and Password instead this data must be entered into the dialing software before placing the call Make sure the device dialing in is using 20 DI 206 ISDN Remote Router the same protocol as defined here The None setting may be used when you do not wish dial in users or networks to identify themselves or be subject to security Call Bumping This setting only takes effect when both B channels are connected and using multi link PPP If this is the case and call bumping is enabled when you receive an outgoing voice call the second B channel will be dropped with all traffic being moved to the first B channel and the voice call will be received If disabled both B channels will continue their data transmissions uninterrupted and the voice call will be ignored e State Enables or disables the ISDN port Network Configuration IP protocol configuration and static routes are configured in the Network Configuration sub menu This menu is shown below 3 Network Configuration 1 IP Configuration EXIT Select IP Configuration and the following screen opens 21 DI 206 ISDN Remote Router 3 1 IP Configuration IP Stack Configuration IP Static Route Networking Enable
47. acent next hop router for which the packets arriving to this router with this destination IP address will be forwarded Hops This is an associated RIP metric that may have its value set between 1 and 15 inclusive A metric value higher than 15 such as 16 means that the network is unreachable e ntf This is the network interface containing the gateway that the packets will be forwarded through e State This enables disables a particular entry IP Static Route Examples The IP Static Route Table shown in the IP Static Route screen above has the first three entries configured for common implementations of static routing 25 DI 206 ISDN Remote Router The first entry assumes that ISDNI has a connection to the Internet and defines the default next hop router If you use this router to connect to the Internet it is very important that you create an entry here that defines the default next hop router as your ISP This configuration is also commonly used when RIP exchanges with other Internet routers on ISDN1 are disabled The second entry shows how to configure static routes when there is another router on the LAN The IP Address shown 202 12 125 0 is the network address for a branch office for example The Gateway Address 210 172 23 1 is the IP address to the LAN port on another router on the LAN that maintains an ISDN connection to the branch office The third entry is an example of an enterprise ISDN connection thr
48. administration parameters and the LAN IP address of the router in order to allow the console software in the router s flash memory to be replaced if it has been damaged or deleted To enter the PROM System Menu press Ctrl C during the Router s POST procedure The following menu will appear DI 206 Router PROM System Menu System C TCP IP System Reset Software Update Eeprom Factory Reset Execute Boot load S Connected 0 07 41 vT100 se008N 1 SCROLL CAPS NUM Capture Print echo System Configuration DI 206 Router System Configuration Menu Hardware Revision Rev 0 Boot PROM Firmware Version Ver 1 10 MAC Address 0050 0067 2 Connected 0 08 15 WT100 8600 8 N 1 SCROLL CAPS NUM Capture Print echo The parameters are described as follows 85 DI 206 ISDN Remote Router e Hardware Revision This is the version ID of hardware used in this router e Boot PROM Firmware Version This is the version ID of firmware used in this router MAC Address This is the physical address for this router TCP IP Parameters Configuration DI 206 Router TCP IP Parameters Configuration Menu Interface 1 Media Type Ethernet IP ddress 10 2 77 80 Subnet Mask 255 0 0 0 Default Gateway 0 0 224 4 Send BootP request upon power up No SAVE EXIT Sen Connected 0 08 40 vT100 3600 8 N 1 SCROLL CAPS NUM Capture Print echo The pa
49. ained in packets received by the router Rx Unknown Packets The number of packets received by the router that were of an unsupported protocol Rx Discard Packets The number of packets dropped by the router Rx Error Packets The number of invalid packets received by the router This hardware counter shows the sum of NOA Abort CRC Overrun CD Lost Framing and Parity error packets Rx NOA Packets Non Octet Alignment This counts the number of packets received by the router that did not end on a byte boundary The receipt of a misaligned packet will generate a single NOA event regardless of the number of misaligned octets in the packet Rx Abort Packet The number of packets that were dropped due to user generated breaks in the transmission that occurred while a packet is being received Rx CRC Packets The number of packets received that failed the CRC checksum test Rx Overrun Packets The number of packets received that exceed the 1518 octet maximum length imposed on Ethernet packets Overrun packets are generated by some proprietary software applications Rx CD Lost Packets Carrier Detect Lost This counts the number of Carrier Detect packets that were lost by the router Rx Framing Error Packets Packets with framing errors can occur on the ISDN port only when using HDLC in sync mode This parameter counts the number of lost start stop flags Rx Parity Error The number of times parity errors oc
50. aled to make the outgoing connection Idle Time This is the elapsed time in seconds of inactivity that will trigger the router to disconnect this interface e Set Peer IP as Default Gateway When enabled this feature sets the IP address of the remote device as the default gateway default next hop router for all packets not found in the routing table This option should be enabled for the ISDN circuit ISDN1 ISDN2 that is used to connect to the Internet Also if the Peer IP is set as the default gateway here you still need to define a static default route in the Network Configuration IP Static Route submenu but you don t need to designate a gateway IP address for the static route the routers will automatically negotiate and adjust the gateway IP setting accordingly And also make sure that the Remote IP Address in the Remote Networks Profile is set to 0 0 0 0 Note that only one ISDN circuit should be connected to the Internet and only one ISDN circuit the same one should be the default gateway Incoming Name The maximum length is 64 characters This username 15 for password challenges authentication The user dialing in must supply this username in order to be allowed access to the router e Password This is the password associated with the above Name field Rem CLID Remote Caller ID This is the telephone number of the Remote User and is used for security When a phone number is entered in this fi
51. amic Host Configuration Protocol allows IP addresses to be automatically and dynamically assigned to hosts on your network DI 206 ISDN Remote Router Data Compression The DI 206 incorporates Stac data compression and CCP Compression Control Protocol Networking Compatibility The DI 206 is compatible with remote access products from other companies such as Ascend Cisco and 3Com Furthermore they support Microsoft Windows 95 and Windows NT remote access capability Applications for your DI 206 Some applications for the DI 206 include Internet Access Your DI 206 supports TCP IP protocol which is the language used for the Internet It is also compatible with access servers manufactured by major vendors such as Cisco and Ascend Network Address Translation NAT For small office environments the DI 206 allows multiple users on the LAN to access the Internet concurrently through a single Internet account This provides Internet access to everyone in the office for the price of a single user NAT address mapping can also be used to link two IP domains via a LAN to LAN connection LAN to LAN Enterprise Connections The DI 206 can dial to or answer calls from another remote access router connected to a different LAN The DI 206 supports TCP IP and has the capability to bridge any Ethernet protocol Telecommuting Server The DI 206 allows Remote Dial in Users to dial in and gain access to your LAN This feature enables u
52. ange of dynamic addresses to be used by hosts but assign static addresses to your servers if you wish for them to be accessible from outside your network Setting Local IP Addresses When implementing NAT and thus creating a private network that is isolated from the Internet you can assign any IP addresses to host computers without problems However the Internet Assigned Numbers Authority IANA has reserved the following three blocks of IP Addresses specifically for private networks Class Beginning Address Ending Address A 10 0 0 0 10 255 255 255 B 172 16 0 0 172 31 255 255 C 192 168 0 0 192 168 255 255 It is recommended that you choose local IP addresses for use with NAT from the private network IP addresses in the above list For more information on address assignment refer to RFC 1597 Address Allocation for Private Internets and RFC 1466 Guidelines for Management of IP Address Space 53 DI 206 ISDN Remote Router 5 6 NAT Configuration NAT NAPT 2 for Special APs Configure NAT NAPT The first screen shows the complete NAT table that is defined by the network manager 5 6 1 NAT NAPT 1 ranch NAT IP Pool 9 NAT IP Pool 2 NAT IP Pool 10 IP Pool 3 NAT IP Pool 11 IP Pool 4 NAT IP Pool Ig IP Pool 5 NAT IP Pool 13 Branchl3 NAT IP Pool 6 NAT IP Pool 14 Branchl4 NAT IP Pool 7 NAT IP Pool 15 Branchl5 NAT IP Pool 8 NAT IP Pool 16 B
53. causing 24 DI 206 ISDN Remote Router the packets to be dropped before Bandwidth on Demand has a chance to reestablish the WAN connection IP Static Route A static route is a permanent entry in the routing table Static routing provides a means of explicitly defining the next hop router for a particular destination network IP address Each static route entry also allows for a metric a k a hop count to be specified 3 1 2 IP Static Route 22 3 1 ISDN Ll Enable gt 12 125 0 210 172 23 1 LAN gt Enable gt 12 124 0 1 202 12 129 1 ISDN L2 Enable gt 0 110 0 0 LAN gt lt Disable gt 110 0 LAN lt Disable gt ro o LAN Disable ro o LAN Disable 110 0 LAN Disable 1 2 3 4 5 6 T 8 110 0 LAN Disable 110 0 LAN Disable 110 0 LAN Disable 110 0 LAN lt Disable gt o00000000 o00000000 0 0 0 0 0 0 0 o o0000000 VYVYVYVVYV 0 0 0 0 0 0 0 0 00000000 The parameters are described below IP Address This specifies the destination network IP address or a host depending on the netmask and pairs it with a gateway e Netmask This mask shows how the destination IP address is to be divided into network subnet and host parts The netmask has ones in the bit positions in the 32 bit address which are to be used for the network and subnet parts and zeros for the host part e Gateway This is the adj
54. cified range must be exempt from the 59 DI 206 ISDN Remote Router NAPT port translation process This field defines the beginning range of the port numbers to be exempted from the NAPT port translation process End Port This field defines the last port number in the range of numbers excluded from the NAPT process see Start Port above e Connection Type Outgoing Control or Incoming Data The user must initially run the special application and send a request to the application server on the Internet This outgoing request to join a Diablo server for example is used to trigger the exemption process for the incoming data In the example for the game Diablo shown in the above screen if a packet is sent out on the TCP port number 6112 a request by a local user to a Diablo server on the Internet to join a group game all incoming packets on the UDP port 6112 game data will not be translated by NAPT Please keep in mind that the user will always initiate use of the special application Thus the first entry should always have the Connection Type of Outgoing Control Also since the defined port number or range of port numbers will be mapped to the user who triggered the outgoing control all incoming data will be sent to that user Consequently only one user can use the special application at a time Telnet Discovery Enable 5 7 Telnet Discovery Enable Telnet State enable 5 Discovery Function Enable gt SAVE
55. ctively limits multicast data to the local network If set to DVMRP Distance Vector Multicast Routing Protocol the router will also use this protocol to share its multicast information with other routers much like RIP in effect enabling multicasting on the WAN ISDN port IGMP Version Configures the router to use either IGMP version 1 or 2 A major difference between the two is that version 2 allows the router to communicate multicast information with other routers via the ISDN port even if the other router isn t using DVMRP DHCP Client LAN This feature allows the LAN port to be assigned an IP address from a DHCP server other than the one in the router This feature should be enabled only for special configurations such as the presence of a cable modem on the LAN where you wish the router to work with a device on the network that must act as a DHCP server Otherwise this feature should be kept disabled RIP Spoofing ISDN This feature should only be enabled if you have more than one router on your network and this router is providing your WAN connection In this case if the WAN connection is dropped due to inactivity and this feature is enabled RIP packets will be sent to the other routers on the network telling them that data can still be sent to the WAN via this router Otherwise the other routers will learn that the WAN link has been disconnected and will no longer forward packets destined for the WAN to this router
56. ctual configuration in the next line You can also use this feature to mask items you don t need to be configured rather than deleting them Format Keyword Space Parameter For example the very last line ip stat disable ip stat is the keyword as explained in the comment line above as meaning IP routing statistics disable is the parameter you set Configuration File Example The system configuration file for D Link DI 206 Router DI 206 runtime image file name software update path and file name di206 image d project di206 runtime image 206run 206run hdr sysname string name sysname DI 206 Router Syscontact string name Syscontact Engineering Administrater Admin Syslocation string name syslocation Myson Building 6th floor systimeout setting in minutes 0 means no timeout systimeout 10 telnet stat enable disable telnet enable ip routing stack enable disable ip routing enable interface decription string name lan port 1 System Lan Interface port stat enable disable port stat enable ip address ip address 202 39 74 119 subnet mask ip netmask 255 255 255 0 routing protocol type 0 RIPv1 1 RIPv2 2 RIPvl amp 2 102 DI 206 ISDN Remote Router routing type 2 routing operating mode 0 None 1 Listen 2 Talk 3 Both operating mode 0 ip routing stat enable disable ip stat enable 103 DI 206 ISDN Remote Router Index A A B Adapter anal 1 Access Right
57. curred on the line Runtime Tables The Runtime Tables submenu features P Routing Table ARP Table and PPP Table 70 DI 206 ISDN Remote Router 7 3 Runtime Tables IP Routing Table ARP Table PPP Table EXIT IP Routing Table The IP Routing Table gives you a snapshot of the IP routing table Table entries will expire after the Age value in the table counts down to zero seconds except for entries for the router itself which have an age value of zero but will never expire IP Address Netmask Gateway If Hops Age 0 0 0 0 0 0 0 0 172 22 3 T ISDN 11 1 202 12 124 0 255 255 255 0 202 12 129 1 ISDN LZ 1 202 12 125 0 255 255 255 0 210 172 23 1 LAN 1 202 22 2 0 255 255 255 0 202 22 2 2 1 0 202 39 74 0 255 255 255 0 202 39 74 95 LAN 1 0 Next EXIT P Address This is the destination network IP address from an incoming packet e Netmask This mask is received from RIP exchanges and internal calculations as the router learns Gateway This is the next hop router for which the packet with destination IP Address and qualifying Netmask will be forwarded e If This is the outgoing interface for which the acceptable routing packet will be forwarded Hops This is the remaining hop count 71 DI 206 ISDN Remote Router Age This is the time to live TTL value ARP Table The ARP Table maps the IP address with a MAC address IP Address MAC Address
58. date er ERR RR ERE HERREN 87 2822er rise DERE Rode 88 Execute Bootload t EROR is HERRERA ar ties TAE ERES RO cree Red 88 hagl lee EE Telnet Configuration AR HARE ER Ge ree a n c Rd re en a ae Using Telnet via EAN aui re REI error NOR ERR RN AERIS Using Telnet via ISDN as System Timeout e USING RADIUS AUTHENTICATION eene nennen annees 92 Installing a RADIUS sns d t et bote t RE HE rte dettes 92 Configuring the DI 206 for RADIUS Authentication esee eene 92 Adding Users to the RADIUS Database eese eene eene eene nennen 93 APPENDIX TROUBLESHOOTING 2 22200000nunnnnnananunanunnnnnnnnnnnannnnnannnnnnunn 94 Some Common Problems With the DI 206 esses eene enne nente entente None of the LEDs are on when you power up the router Connecting the RS 232 cable cannot access the console program Problems With the ISDN Line eese eese nennen neri ne nene ne 94 Problems with the LAN Interface 94 Can t PING any station on the LAN suere Rte UE E 94 APPENDIX B P GONGEPTS unse 96 IPAddfesses s a nA E ELI an SM AM act 96 IP Network Classes er Ere Ee nennen I WA EE RARE SU ERN 96 Subnet dee 97 APPENDIX C IP PROTOCOL AND PORT 98 IP Protocol Numbe
59. destined for the Internet NAT can adversely affect the speed and performance of your Internet connection Also your network servers such as ftp servers web servers or mail servers will probably need to be assigned static NAT IP addresses so their IP addresses remain consistent This issue will be further discussed later 50 DI 206 ISDN Remote Router Network Address Port Translation NAPT is a subset of NAT where many local IP addresses and their TCP UDP port numbers are translated to a single global IP address and it s TCP UDP port number In this document the term NAT will refer to both NAT and NAPT unless otherwise stated NAT can work in conjunction with DHCP Thus if both are enabled and properly configured the DHCP server in the DI 206 will assign local IP addresses to computers on your network How NAT Works In the most common NAT configuration your network uses local IP addresses that are not valid on the Internet Internet global IP addresses are unique with no two devices have the same IP address The local IP addresses can be freely assigned to computers on your network by your network administrator within guidelines defined later in this chapter and in Appendix B Concepts This can be done manually or by using DHCP The ISDN port on the router is assigned a globally unique IP Address that IS valid on the Internet since it will be sending and receiving data directly to the Internet and is therefore part of
60. e Highveld Technopark Centurion Gauteng Republic of South Africa TEL 27 0 126652165 FAX 27 0 126652186 CELL NO 0826010806 Bertus Moller CELL NO 0826060013 Attie Pienaar E MAIL bertus d link co za attie d link co za D LINK SWEDEN P O Box 15036 S 167 15 Bromma Sweden TEL 46 0 8564 61900 FAX 46 0 8564 61901 E MAIL info dlink se URL www dlink se D LINK TAIWAN 2F No 119 Pao Chung Road Hsin Tien Taipei Taiwan R O C TEL 886 2 2910 2626 FAX 886 2 2910 1515 URL www dlinktw com tw E MAIL dssqa tsc dlinktw com tw D LINK EUROPE D Link House 6 Garland Road Stanmore London HA7 1DP U K TEL 44 20 8235 5555 FAX 44 20 8235 5500 BBS 44 20 8235 5511 URL www dlink co uk E MAIL info dlink co uk D LINK U S A 53 Discovery Drive Irvine CA 92618 USA TEL 1 949 788 0805 FAX 1 949 753 7033 INFO LINE 1 800 326 1688 BBS 1 949 455 1779 1 949 455 9616 URL www dlink com E MAIL tech dlink com support dlink com Registration Card Print type or use block letters Your name Mr Ms Organization Dept Your title at organization Telephone Fax Organization s full address Country Date of purchase Month Day Year Product Model Product Serial Product installed in type of Product installed in E computer Compaq 486 computer serial No Applies to adapters only Product was purchased from Reseller s name Telephone Fax Reseller s full addre
61. e New routing software can be downloaded from a TFTP server If you do not have a TFTP server on your LAN you can use the included Router Configuration Utility to upgrade the software This Windows based utility has a built in TFTP emulator enabling you to use the computer connected to the LAN and running the Configuration Utility to upload the new software to the router 80 DI 206 ISDN Remote Router 7 6 Software Update Menu Software Update Software Update Mode Network Boot Protocol TFTP ONLY gt Boot Server IP Address 10 17 53 25 Boot File Name c XamyYdi 206Xv1 80X206rl81 hdr Last Boot Server IP Address 0 0 0 0 Update Software from Configuration File gt SAVE EXIT This is the same Software Update configuration information contained in the Software Update section in the PROM System Configuration chapter The parameters are described in that section Perform a System Restart after configuring these settings begins the software update procedure System Restart The system restart function enables you to reset the DI 206 without powering off Some setting changes require a system restart in order for them to take effect 7 7 System Restart Are you sure you want to restart We Yes A system restart will not affect the router s settings but will clear all tables including the routing table and all SNMP counters and tables It is also used to initiate a softwar
62. e DI 206 the call comes into the D channel and after answering the phone the DI 206 l Identifies the Username and Password using the authentication protocol defined in the Interface Configuration ISDN submenu 2 Checks the Username and Password against those defined in the Dial In User Profiles and Remote Network Profiles 3 Assuming a matching Remote Network Profile is found the router may configure the IP address of the remote station as defined in the Remote Network Profile 4 Configures the specified ISDN Interface a virtual circuit using the configuration parameters defined in the Interface Configuration menu and the Remote Network Profile to handle the connection 5 Establishes the connection on whichever B channel physical port is open by mapping the dial in interface to that port Dial Out Network Connections Dial out network connections are much different than dial in connections When a packet on the LAN reaches the router the DI 206 will 30 DI 206 ISDN Remote Router 1 Check its routing table to try to identify where this packet should go It looks for two variables in the routing table Gateway address and Interface There are four possible results I 15 the case where the destination resides in the same IP network on the LAN the routing engine never acts on the packet and it is sent directly to the destination through the built in hub IL Inthe case where the destination resides on a different IP
63. e network portion may be from 0 to 255 except that in class B the network addresses 128 0 0 0 and 191 255 0 0 are reserved and in class C the network addresses 192 0 0 0 and 223 255 255 0 are reserved The value s in the host portion of a physical device s IP address can be in the range of 0 through 255 as long as this portion is not all O or all 255 Values outside the range of 0 to 255 can never appear in an IP address 0 to 255 is the full range of integer values that can be expressed with eight bits The network portion must be the same for all the IP devices on a discrete physical network a single Ethernet LAN for example or a WAN link The host portion must be different for each IP device or to be more precise each IP capable port or interface connected directly to that network The network portion of an IP address will be referred to in this manual as a network number the host portion will be referred to as a host number To connect to the Internet or to any private IP network that uses an Internet assigned network number you must obtain a registered IP network number from an Internet authorized network information center In many countries you must apply through a government agency however they can usually be obtained from your Internet Service Provider ISP If your organization s networks are and will always remain a closed system with no connection to the Internet or to any other IP network you can choose your own n
64. e network to establish a connection with to deliver the packet IP Address Supply This field defines how the router will assign an IP address to a device dialing in The choices include Default Uses the Remote IP address defined above Dynamic Taken from the Dial In IP pool or None The remote user supplies their own IP Address Multi Link PPP Enables disables multi link PPP on this port Individual ISDN ports can be set to join the MLPPP bundle by enabling Multi Link on each port When enabled the port will join the MLPPP bundle Please note that the DI 206 contains only one MLPPP bundle All ports taking part in MLPPP even the first or primary port which initially establishes the connection must have Multi Link enabled The ISDN port that first established the connection is the Primary ISDN Port and will not disconnect due to a BOD Low Threshold event but is subject to Dial on Demand DOD settings Compression Enables or disables Stac compression This is an industry standard using a 4 1 compression scheme When enabled the router will try to use Stac compression on the designated ISDN port whenever possible If the destination device is not capable of using Stac compression the two devices will still communicate albeit without using Stac compression When disabled Stac compression will never be used on this port State Enables or disables this Remote Network Profile Select Connect Test at the bottom of the scr
65. e telephone company installs your ISDN line be sure to obtain the following information ISDN switch type ISDN telephone number s The DI 206 Front Panel Names and descriptions of your router s front panel LEDs are given below Power Test ISDN Ethernet Link B1 B2 Col Uplink 1 2 3 4 POWER Comes on as soon as you connect the router to the power adapter and plug the power adapter into a suitable AC outlet TEST Should be blinking if the router is functioning properly ISDN LINK Indicates that the router has an ISDN line connected to the ISDN interface and it has been successfully initialized ISDN Bl and B2 On if there is an active ISDN session on that channel or if that channel is making or receiving a call DI 206 ISDN Remote Router ETHERNET COL Shines yellow when a collision occurs on the LAN that is when two devices have attempted to transmit at the same time ETHERNET Uplink and 1 through 5 Each of these indicators shines green when a connection to an Ethernet device is detected The indicator blinks when a transmission is received from the device and shines yellow when the device has been partitioned that is temporarily isolated from the LAN because of excessive collisions partitioning is a required capability of all Ethernet hubs PHONE 1 Lights up when standard phone port 1 is in use PHONE 2 Lights up when standard p
66. e that WAN connections to computers on other networks must be defined in the Remote Network Profile submenu Up to eight users can be set up to dial in to the router However more dial in users can be accommodated by using a Radius server as described in the Radius 33 DI 206 ISDN Remote Router Configuration section of this manual Please note that when a Radius server is being used the Dial in User Profiles will be disabled The Dial In User Profile submenu appears below 5 1 2 Dial In User Profile EXIT Select a dial in user from the screen above Password Rem CLID 5550069 Default IP 10 201 22 5 IP Address Supply lt Default gt Call Back lt Disable gt Phone Number Supplied by lt Router gt Phone Number Idle Time 0 State lt Enable gt SAVE EXIT The parameters in the above window are described as follows e Name The maximum length is 64 characters This username is for password challenges authentication The user dialing in must supply this username in order to be allowed access to the router e Password This is the password associated with the above Name field Rem CLID Remote Caller ID This is the telephone number of the Remote User and is used for security When a phone number is entered in this field the router will make sure that the incoming call is coming from the same phone number as the one defined here In other words
67. e update 81 DI 206 ISDN Remote Router Factory Reset Performing a factory reset erases all settings and tables All configuration changes ever made to the router will be deleted The router will be set to the factory defaults it was shipped with and will no longer have an IP address 7 8 Factory Reset WARNING Performing a factory reset will erase all settings you sure you wish to proceed Yes Please make sure you wish to wipe out all settings and configure the router from scratch before you perform a factory reset System Settings Backup Restore The backup and restore system settings functions are used to backup the router settings The files created by these processes are different than configuration files or software update files that are used in the Software Update submenu The files defined here can be used as a backup for all the router settings and can be used to configure another DI 206 with exactly the same settings or as a backup before you make major changes to the configuration 7 9 System Settings Backup Restore l Backup System Settings 2 Restore System Settings EXIT 82 DI 206 ISDN Remote Router Backup System Settings 7 9 1 Backup System Settings Remote IP Address 0 0 0 0 TFTP Time Interval 0 File Name Start Backup Items in the window are described below Remote IP Address This is the IP address of the TFTP server on
68. ed in transit and the RMA number must be prominently marked on the outside of the package The package must be mailed or otherwise shipped to D Link with all costs of mailing shipping insurance prepaid D Link shall never be responsible for any software firmware information or memory data of Purchaser contained in stored on or integrated with any product returned to D Link pursuant to this warranty Any package returned to D Link without an RMA number will be rejected and shipped back to Purchaser at Purchaser s expense and D Link reserves the right in such a case to levy a reasonable handling charge in addition mailing or shipping costs Software Warranty service for software products may be obtained by contacting a D Link office within the applicable warranty period A list of D Link offices is provided at the back of this manual together with a copy of the Registration Card If a Registration Card for the product in question has not been returned to a D Link office then a proof of purchase such as a copy of the dated purchase invoice must be provided when requesting warranty service The term purchase in this software warranty refers to the purchase transaction and resulting license to use such software D Link warrants that its software products will perform in substantial conformance with the applicable product documentation provided by D Link with such software product for a period of ninety 90 days from the date of purchase from
69. een to test if your setup is correct DHCP Configuration The DI 206 Router implements the Dynamic Host Configuration Protocol DHCP which allows the entire IP network to be centrally managed by the router It does this by assigning IP addresses and configuration parameters to hosts as they are powered 38 DI 206 ISDN Remote Router on and come onto the network This can be a great help for network administration since many administrative tasks such as keeping track of each computer s IP address are handled by the router The DI 206 can implement DHCP in one of the two ways shown below 5 2 DHCP Configuration 1 DHCP Server Configuration 2 DHCP Relay Agent EXIT DHCP Server Configuration When acting as a DHCP server the DI 206 will manage many of the IP network parameters The DI 206 will never assign a broadcast or network IP addresses to hosts even if such an address is included in the specified range The following is the DHCP Server Configuration screen 5 2 1 DHCP Server Configuration 1 Dynamic IP Pool 2 Static IP Pool Dynamic IP Pool The Dynamic IP Pool screen shown below contains the parameters that the router can set on the hosts Please note that the Dynamic IP Pool cannot be enabled when the DHCP Agent feature is enabled 39 DI 206 ISDN Remote Router 5 2 1 1 Dynamic IP Pool IP Address Range 100 Netmask 255 255 255 0 Gateway 202 93 47 25
70. elay parameters Thus BOD economizes MLPPP by maintaining only the bandwidth needed A static implementation of MLPPP is achieved when BOD is disabled but the ISDN ports have Multi Link enabled In this case when the two ISDN ports have established a connection the router will check to see if they are connected to the same source and whether the source supports MLPPP If both conditions are met the router will automatically bundle the two links together as an MLPPP connection Choosing Multi Link PPP Configuration displays the following screen 5 10 Multi Link PPP Configuration Bandwidth On Demand 1 BOD Criteria TX or RX BOD High Threshold 70 BOD Low Threshold i 30 Add Bandwidth Delay sec 5 Subtract Bandwidth Delay sec 10 SAVE EXIT Items in the Multi Link PPP Configuration window are described as follows e Bandwidth on Demand Enables or disables BOD When enabled BOD will manage the implementation of MLPPP using the parameters defined in this window BOD Criteria Either TX RX or TX RX where TX is Transmit and RX is Receive The parameter defined here is used when monitoring the BOD High Threshold and BOD Low Threshold 64 DI 206 ISDN Remote Router BOD High Threshold 96 0 to 100 The throughput value as a percentage of total bandwidth which will cause the next ISDN port having Multi Link PPP enabled to dial up and add bandwidth to the connection
71. eld the router will make sure that the incoming call is coming from the same phone number as the one defined here In other words the remote user can only be calling from the telephone number defined here otherwise the call will not be accepted This function is disabled if the field is left blank e Call Back This field determines whether the router calls back after receiving a call from this Remote Network Profile If this option is enabled 37 DI 206 ISDN Remote Router the router will disconnect the initial call and call back to the phone number that you provide Note that this field will be valid only if the Direction setting above is Both Outgoing e Name The maximum length is 64 characters Spaces and punctuation are not usually accepted This username is for password challenges authentication which are automatically handled by the router when dialing out The DI 206 will use PAP and CHAP whichever works to make the connection e Password This is the password associated with the above Name field Remote IP Address This is the IP address that will be assigned to the dial in network when the IP Address Supply setting below is set to Default Assigning an IP address to the router dialing in ensures that the IP address does not clash with other IP addresses on your network For dial out connections utilizing dial on demand the IP address of the remote router needs to be entered here so the router knows which remot
72. ende Teile verwendet werden Der Einsatz von ungeeigneten Ersatzteilen kann eine weitere Besch digung hervorrufen Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren Servicepartner Somit stellen Sie die Betriebssicherheit des Ger tes sicher Zum Netzanschluf dieses Ger tes ist eine gepr fte Leitung zu verwenden F r einen Nennstrom bis 6A und einem Ger tegewicht gr fer 3kg ist eine Leitung nicht leichter als HO5VV F 3G 0 75mm2 einzusetzen Table of Contents INTRODUCTION Rec NE 1 Product Features osa i Meinen a br dte t ea he an uel eH bees 1 Applications for your DI 206 iie teme d aie erbe eene PY eU nee hen Internet ACCESS S Siete etie tpi e rere nidis ld te priest een Network Address Translation NAT LAN to LAN Enterprise Connections T lecomimmuting Server e REPE cons tre eee Whats Manu dl Covers se t dt eed ten te deco Seas dte e NE 3 What This Manual Doesn t entente nee nneet nene en nest nente entren tentent entente 4 Other Resources inser taped AE ES 4 Packing List zii io nete Ro e gere HR tee E e Ie 5 Additional Installation Requirements eee esee eene trennen eene nee nenne D INSTALLATION sense anreisen QR PEN RI NNI DIS UNIS e ERR 6 Ordering Your ISDN LiNE eeii eie E
73. er is packed with features that give it the flexibility to provide a complete networking solution for almost any small to medium sized office environment Ease of Installation Your DI 206 is a self contained unit that is quick and easy to install Physically it resembles an external modem however it is a combination ISDN router and 10 Mbps Ethernet hub and it uses twisted pair Ethernet cables to connect to the host network Built in Hub As a 10 Mbps Ethernet hub your DI 206 provides six ports for connecting standard Ethernet devices Five ports are designed for connecting network end nodes single user computers servers bridges other routers etc through standard straight through twisted pair cables the sixth is wired for making an uplink connection to another hub or switch through the same type of straight through cable used to connect end nodes ISDN Basic Rate Interface BRI Using a standard S T the DI 206 supports DSS1 ISDN switches The two ISDN B channels can be used independently for two destinations or they can be bundled together for one high bandwidth connection supporting bandwidth on demand DI 206 ISDN Remote Router ISDN Leased Line If the router is set up for an ISDN leased line it can automatically initialize the leased line connection each time it is powered up Standard Phone Jacks The router is equipped with two standard phone jacks for connecting telephones fax machines or mode
74. er via the Phone 1 and Phone 2 telephone jacks located on the rear of the router The router enables the attached telephones to have a number of features which may or may not be found on normal telephones and are described below Additional features which must actually be configured are described in the Interface Configuration ISDN sub menu section of this manual Hold This feature is very similar with and can work in conjunction with call waiting as defined in the Interface Configuration ISDN sub menu section of this manual Press Flash 0 to place someone on hold Flash is a very brief hanging up of the phone Press Flash 2 to take the caller off hold Hold and pick up from another location Telephones connected to the router can be put on hold by pressing Flash 71 72 73 or 74 Press the same number to take the caller off hold and speak from another phone on your telephone network Callforwarding If you wish to forward incoming calls to a different telephone press 77 and then the phone number you wish to forward the call to All incoming calls will automatically be forwarded to the phone number entered Press 77 to cancel call forwarding Three person conference call To use this feature conference calling must be enabled by the telephone company After this is done pick up a phone and place a call After connected press Flash 0 refer to call waiting in the Interface Configuration ISDN sub menu section o
75. etwork numbers as long as they conform to the above rules If your networks are isolated from the Internet e g only between your two branch offices you can assign any IP Addresses to hosts without problems However the Internet Assigned Numbers Authority IANA has reserved the following three blocks of IP Addresses specifically for private stub networks Class Beginning Address Ending Address A 10 0 0 0 10 255 255 255 B 172 16 0 0 172 31 255 255 C 192 168 0 0 192 168 255 255 It is recommended that you choose private network IP Addresses from the above list For more information on address assignment refer to RFC 1597 Address Allocation for Private Internets and RFC 1466 Guidelines for Management of IP Address Space Subnet Mask In the absence of subnetworks standard TCP IP addressing may be used by specifying subnet masks as shown below IP Class Subnet Mask Class A 255 0 0 0 Class B 255 255 0 0 Class C 255 255 255 0 Subnet mask settings other than those listed above add significance to the interpretation of bits in the IP address The bits of the subnet mask correspond directly to the bits of the IP address Any bit an a subnet mask that is to correspond to a net ID bit in the IP address must be set to 1 97 DI 206 ISDN Remote Router Appendix C IP Protocol and Port Numbers Common Internet service protocols and IP port numbers
76. f this manual and dial the second number After connected press flash 3 to speak to both parties at the same time Press Flash 0 to hang up with the first party called Press flash 1 to hang up with the second party called Call transfer To transfer a call to the other phone jack on the router if using Phone 1 press flash 20 If using Phone 2 press flash 10 Installation and Initial Configuration This section discusses the different connections that can be made to the router when setting it up Initially you will only wish to connect the console to the router in order to configure the other ports Once that is complete you will need to turn off the power to the router and plug in the connection cables to the other devices Next power on the other devices When they have finished powering up power on the router Each of these steps is described in detail in the sections below Please skip any setting adjustments that do not apply to your configuration needs DI 206 ISDN Remote Router For the initial configuration of your DI 206 you must use an RS 232 console connection either to a computer running serial communications software or to a serial data terminal After the router has been successfully installed and the initial configuration is complete you can continue to modify settings through the console or you can change configuration settings through a remote Telnet connection or through a web browser See the chapters e
77. face Disable ISDN Link 1 Disable Disable ISDN Link 2 Disable Disable Dial In Disable Disable Each decision on handling packets is described below 1 Disable Will not apply a filter 2 Forward This allows the routing of a packet even though it has not met the criteria of the corresponding filter 3 Drop This drops doesn t allow routing for a packet that has not met the criteria for the corresponding filter Layer 2 Filter The Layer 2 Filter sub menu contains a protocol independent data link layer filter Foreknowledge of the specific protocol used on the interface LAN or WANS is needed to make effective use of this filter 5 3 2 Layer 2 Filter EXIT Select an entry above and then press Enter The following screen appears 44 DI 206 ISDN Remote Router IP Filter Name Direction lt In gt State lt Disable gt Interface lt LAN gt Offset 0 Length 0 Value x 0000000000000000 Mask Ox 0000000000000000 S 3171 Connected 0 49 14 0 9600 8 N 1 SCROLL CAPS Capture Print echo The parameters of a filter are described below Name This is a 12 character maximum alphanumeric user defined name used to identify the filter Direction This defines the direction of the frame relative to the Interface parameter below State This is used to choose the routing decision applied to the frame The three decisio
78. h ways When this is set to n the DI 206 will only establish a connection with the other network by receiving calls on the ISDN port specified in the Interface field below Also the incoming calls will be subject to the Name Password and Rem CLID fields in the Incoming section below 36 DI 206 ISDN Remote Router When this is set to Out the router will only make calls on the ISDN interface specified in the Interface field below Also the outgoing calls will be subject to the Name Password and Phone Number fields in the Outgoing section below When set to Both the dial in and dial out conditions described above will both be Observed Interface ISDN Link 1 SDN L1 or ISDN Link 2 SDN L2 This field is used to assign a remote network to a logical virtual interface called a virtual circuit More than one remote network can be configured to use the same interface but they cannot be connected at the same time Thus if you wish to have two WAN connections operate simultaneously make sure they are configured on different interfaces On the other hand if you have two dial out remote network profiles but wish to keep one line always open for dial in users make sure the two dial out profiles use the same interface In this case the two profiles will share the same interface the second one using it after the first one s idle time has expired and it has relinquished it Phone This is the telephone number that will be di
79. he included Router Configuration Utility or Telnet However if you wish to do this the console program must first be used to initially configure the relevant port on the router Please see Step 7 Initial Configuration of the Router on page 12 of this manual for more detailed information Console Program Main Menu The Main Menu is shown below DI 206 ISDN Remote Router Main Menu em Information Interface Configuration Network Configuration SNMP Agent Configuration Advanced Functions Admin Configuration System Maintenance LOGOFF As mentioned earlier your first endeavor should be to increase the automatic timeout Enter the System Information window to do this You will see this screen System Information This menu contains administrative and system related information l System Information System Description ISDN Router System Object ID 1 3 6 1 4 1 171 10 22 1 System Up Time Zl minutes 20 seconds System Contact D Link Technical Support 1 System Name DI 206 ISDN Router System Location Myson Building 7th Floor 1 Console Telnet Display Timeout in Minutes 0 90 0 System MAC Address O0050BAO0067C2 ISDN Switch Type DSS 1 EXIT The above parameters are described as follows e System Description This is a non changeable short description of the product e System Object ID This is the enterprise specific MIB Object ID indicating this
80. he router to operate correctly therefore necessary packets must be allowed to pass through the filters In other words do not attempt to configure filters on a utilized router unless you understand what you are doing The following section describes how to configure the router filter parameters 42 DI 206 ISDN Remote Router Configuring a Filter Set Under the Advanced Functions menu select Filter Configuration You will see the following screen 5 3 Filter Configuration Filter State of Interface 2 Layer 2 Filter 3 IP Filter EXIT The three sub menus are described as follows e Filter State of Interface This is used to choose the default routing decisions for packets not meeting the criteria for specific filters Layer 2 Filter This is a data link layer protocol independent filter Foreknowledge of the specific protocol used on the interface LAN or WANS is needed to make effective use of this filter e IP Filter This is an IP protocol specific filter allowing you to among other things prohibit specific packets from entering the LAN Alternatively you can set up filters that allow certain types of IP packets to enter the LAN Filter State of Interface The Filter State of Interface sub menu lets you disable a filter or for packets that have not met the corresponding criteria to forward or drop packets 43 DI 206 ISDN Remote Router 5 3 1 Filter State of Inter
81. home or office Plug the ISDN line from the router directly into the ISDN wall socket provided by your phone company Step 4 Connecting a Telephone or Fax Machine to the Router You can connect a regular telephone fax machine or modem to your router to be used for analog calls Note that the router s other functions all work the same whether you connect an analog device or not To connect an analog device just plug one end of the device s cord into one of the sockets on the back of the router marked PHONE 1 or PHONE 2 To have incoming calls directed to a device on a PHONE jack you must enter the telephone number for the phone in the console program under the Interface Configuration ISDN submenu Step 5 Connecting Ethernet Cables to the Router Your DI 206 has six ports for connecting IOBASE T Ethernet devices to form a LAN The jacks for ports 1 through 5 are wired to let you connect network end nodes computers servers bridges other routers etc using standard straight through EIA Electronic Industries Association Category 3 or higher twisted pair cables The jack for the sixth port is labeled Uplink and is wired to let you connect to 10 DI 206 ISDN Remote Router another 10Mbps Ethernet or dual speed hub using a straight through cable or an end node using a cross wired cable Please refer to the following chart when deciding on the type of cable necessary for a given connection DEVICE PORT DEVICE BEI
82. hone port 2 is in use The DI 206 Rear Panel Ethernet POWER This socket is an 18 volt 750mA power input jack If the power adapter included with the router has been lost or misplaced please ensure that the replacement adapter meets both the voltage and amperage requirements CONSOLE This 9 pin RS 232 port is used for connecting a console or PC running a terminal emulation program It provides out of band management capabilities for the initial setup and configuration of the router PHONE 1 and 2 These normal telephone jacks can be used to connect telephones or fax machines to the router for use over the ISDN lines Plug telephone devices into these jacks as you normally would into a telephone wall socket ISDN This socket is used to connect the ISDN line to either an NT 1 or directly to the ISDN wall jack depending on the type of service delivered by your phone company ETHERNET The six Ethernet ports function as a normal 10 Mbps IOBASE T Ethernet hub e Uplink This port is used to connect the router to another hub using a straight through twisted pair cable e Ports Ix to 5x These five ports can be used to connect end stations to the router using straight through cables DI 206 ISDN Remote Router Telephone Features Up to two telephones can be attached to the DI 206 rout
83. how to configure the DI 206 for SNMP management 26 DI 206 ISDN Remote Router 4 SNMP Agent Configuration SNMP Community Configuration 2 SNMP Trap Manager Configuration 3 SNMP Authenticated Trap Enable gt SAVE EXIT From the Main Menu select SNMP Agent Configuration This will bring you to the SNMP Agent Configuration menu shown above SNMP Community Configuration Select and enter the SNMP Community Configuration sub menu You will see the following configuration screen 4 1 SNMP Community Configuration SNMP Community String Access Right Loc 1 head Only gt private 1 BRead Write Read Write Read Write Status Valid gt Valid gt Valid gt Invalid The parameters are described below SNMP Community String This community string is a user defined identifying name used to group together some arbitrary set of SNMP application entities managed by the network manager Access Right This element of the set Read Only Read Write is called the SNMP access mode If the SNMP Community String has an Access Right of Read Write then that Community String is available as an operand for the get set and trap operations Otherwise if the Community String s corresponding Access Right is Read Only then it is available as an operand for the ger and trap operations only 27 DI 206 ISDN Remote Router e Status This validates or
84. ic NAT ish eniro 55 Static NAT nee 55 NAT Configuration 50 NAT IP 54 56 57 58 Netmask iet re 23 40 Network Configuration sess 21 network 108 next HOP router 31 Offset ern 45 Operation singe 47 P PAP ht eite diete 2 20 P sSWOotd i mete 30 Password Authentication Protocol See PAP physical port e eite ene 30 idee RU io DEEP 78 Plain Old Telephone Service See POTS Point to Point Protocol Multilink ProtocolSee PPP MP iei eee 58 63 75 93 Port Numbers eeeeeseeeeennnnes 98 Interface 76 POST usse eren 16 85 POTS ioc Een Liebe Tee 1 PPPIMPB eec eee ES ere 2 private network essere 50 private networks sese 53 PROM System Configuration 85 PROM System Menu sese 85 Protocol 47 R Radius ser an Renee wits 63 Radius Configuration 63 Radius server 33 63 Range i R 33 40 Rem CLID A PE 34 Remote 5 32 Remote Access Configuration 29 remote 2 29 Remote Dial in Users 1 3 Remote Network Connections 30 Remote Network P
85. ices is provided at the back of this manual together with a copy of the Registration Card If the product proves defective within the applicable warranty period D Link will provide repair or replacement of the product D Link shall have the sole discretion whether to repair or replace and replacement product may be new or reconditioned Replacement product shall be of equivalent or better specifications relative to the defective product but need not be identical Any product or part repaired by D Link pursuant to this warranty shall have a warranty period of not less than 90 days from date of such repair irrespective of any earlier expiration of original warranty period When D Link provides replacement then the defective product becomes the property of D Link Warranty service may be obtained by contacting a D Link office within the applicable warranty period and requesting a Return Material Authorization RMA number If a Registration Card for the product in question has not been returned to D Link then a proof of purchase such as a copy of the dated purchase invoice must be provided If Purchaser s circumstances require special handling of warranty correction then at the time of requesting RMA number Purchaser may also propose special procedure as may be suitable to the case After an RMA number is issued the defective product must be packaged securely in the original or other suitable shipping package to ensure that it will not be damag
86. igned they will remain static This option may be necessary for email web ftp servers etc where static IP addresses are essential for operation Dynamic NAT Maps one global IP address to one local IP address Global IP addresses will be dynamically reassigned to different local IP addresses if not currently being used This allows a larger number of users to use a small number of IP addresses Static One to one mapping of UDP TCP port numbers to let packets with specific UDP TCP port numbers enter the local IP domain The NAPT map table will not age This option may be necessary for email web ftp servers etc where static port numbers are essential for operation Setting the global port number to 0 opens port numbers 1024 to 65535 for the designated local IP address creating a visible computer This allows a computer to be freely accessed by other computers on the Internet which is necessary for some applications to function correctly when using NAPT including Microsoft NetMeeting CUSeeMe etc 55 DI 206 ISDN Remote Router Dynamic NAPT One to one mapping of UDP TCP port numbers The NAPT map table will age This option allows many hosts to use a single globally unique IP address and thus will only be used on outbound packets State Enables or disables this NAT configuration NAT IP Pool Configuration Screen Now you must select enter and configure the NAT IP Pool from the NAT Configuration sub menu
87. in or without the scope of D Link s applicable product documentation will be corrected D Link Offices for Registration and Warranty Service The product s Registration Card provided at the back of this manual must be sent to a D Link office To obtain an RMA number for warranty service as to a hardware product or to obtain warranty service as to a software product contact the D Link office nearest you An address telephone fax e mail Web site list of D Link offices is provided in the back of this manual Wichtige Sicherheitshinweise 10 11 12 13 14 15 16 17 18 Bitte lesen Sie sich diese Hinweise sorgfaltig durch Heben Sie diese Anleitung f r den sp tern Gebrauch auf Vor jedem Reinigen ist das Ger t vom Stromnetz zu trennen Vervenden Sie keine Fl ssig oder Aerosolreiniger Am besten dient ein angefeuchtetes Tuch zur Reinigung Um eine Besch digung des Ger tes zu vermeiden sollten Sie nur Zubeh rteile verwenden die vom Hersteller zugelassen sind Das Ger t is vor Feuchtigkeit zu sch tzen Bei der Aufstellung des Ger tes ist auf sichern Stand zu achten Ein Kippen oder Fallen k nnte Verletzungen hervorrufen Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise des Herstellers Die Bel ftungs ffnungen dienen zur Luftzirkulation die das Ger t vor Uberhitzung sch tzt Sorgen Sie daf r daB diese Offnungen nicht abgedeckt werden Beachten Sie beim Anschlu an das
88. ing to the SNMP Agent Configuration menu you can Enable or Disable an authentication failure trap message being sent to the Management Station by the router When an SNMP packet with an invalid community name is received it will be dropped If this parameter is enabled a trap will be sent to the network manager if this parameter is disabled no trap will be sent 28 DI 206 ISDN Remote Router Advanced Functions The Advanced Functions menu contains most of the more complex configuration settings and is shown below 5 Advanced Functions Remot Configuration DHCP Configuration Filter Configuration Multiple Home Configuration Static ARP Configuration Telnet Discovery Enable DNS Configuration RADIUS Configuration Multi Link PPP Configuration 1 2 3 4 5 6 8 9 0 m EXIT Remote Access Configuration The Remote Access Configuration menu is used to set up the router for dial in and dial out connections over the ISDN line An ISDN line has a D channel for establishing connections and two B Bearer channels which transmit and receive the actual signals whether voice or data The two B channels can support two independent remote connections or be banded together using Multi link PPP to implement Bandwidth on Demand configured separately in the Multi Link PPP Configuration menu the last item in the Advanced Functions window The B
89. is is Internet Control Message ICMP defined in 792 6 This is Transmission Control TCP defined in 793 17 This is User Datagram UDP defined in 798 e Src IP This is the source address in the IP header of this packet e Src Netmask This mask is bit wise AND d with the source IP address and bit wise AND d with the IP address of the incoming interface The two results are then compared e Src Port This is the source port in or UDP header of the packet e Src Port Operation This comparison operation is applied to the source port the Src Port parameter value of the TCP or UDP header e Dst IP This is the destination address in the IP header of the packet e Dst Netmask This mask is bit wise AND d with the destination IP address and bit wise AND d with the IP address of the incoming interface The two results are then compared e Dst Port This is the destination port in TCP or UDP header of the packet e Dst Port Operation This comparison operation is applied to the destination port the Dst Port parameter value of the TCP or UDP header ICMP Type This is the type field in the ICMP header used to identify a particular ICMP message e ICMP Code This is the code field in the ICMP header used to further specify the ICMP type TCP Flag This is a hex number representing the six flag bits in TCP header The value range is from 0 to
90. it Please study the example diagram below carefully Single Global IP Address 176 220 22 1 ISDN Port NAT Translator Router Local IP LAN 192 168 100 1 PC PC PC Local IP Local IP Local IP 192 168 100 2 192 168 100 3 192 168 100 4 192 168 100 5 PC Local IP Please note that in the above diagram the Gateway IP address settings for the local PC s needs to be set to 192 168 100 1 the LAN address of the router NAT manipulates the IP addresses in packet headers on a one to one basis An outgoing data packet a packet originating from a computer on the local LAN and destined for a computer outside the private network will have its IP address translated as shown below 51 DI 206 ISDN Remote Router NAT Router Outbound Data Packet on LAN Outbound Data Packet on ISDN Source IP Destination NAT Source IP Destination Local IP Address IP Address 2 Transiator gt Pata Global IP Address Address In the Outgoing Data Packet above the Source IP address 1s the IP address that is translated by NAT The Destination IP Address is the IP address of a computer outside the private network on the Internet for example And the Data portion of the packet is the information payload borne by the packet for instance a request to view a web page The router logs the changes made to the IP header in its NAT table The NAT table enables the router to send replies back to the local comp
91. ive the web page IV Inthe case where there is no match for the destination IP address in the routing table and no default next hop router is defined the packet will be dropped and no action will be taken The Remote Access Configuration submenu is shown below items in the submenu are described as follows 5 1 Remote Access Configuration Dial Configuration 2 Dial In User Profile 3 Remote Network Profile EXIT 31 DI 206 ISDN Remote Router Dial Configuration You can configure the two ISDN interfaces on your DI 206 to dial out only when a packet is forwarded to that interface and hang up after all data has been transferred and the link is idle This can be used to lower the cost of an unpopular link or used as a backup link to your ISP This feature is commonly called Dial on Demand ISDN interfaces can also be configured here to receive calls from dial in users and other networks called Remote Access Please note however that in all cases after configuring the ISDN Links in the Dial Configuration submenu they must be further configured in the Dial In User Profile submenu or Remote Network Profile submenu 5 1 1 Dial Configuration ISDN Link 1 ISDN Link 2 Dial In IP Pool The dial in IP pool allows you to define a range of IP addresses that will be reserved for and assigned to dial in users 5 1 1 Dial Configuration Dial In IP Pool IP Address
92. le there are 9 users on the local network using 5 global IP addresses to access the Internet When packet on the local network arrives at the router and needs to be sent to the Internet NAT will change the source IP address for example 192 168 100 2 to a global address 200 100 50 1 for example If this packet generates a reply as for example a request to view a web page will NAT will change the destination IP address on the reply packet back to the local IP address for delivery to the machine on the local stub network The difference between static and dynamic NAT is that once the five global addresses are manually assigned when using static NAT they will never change The only way to change them is by using the console program to manually reassign them When using dynamic NAT the router will map a local IP address to a global IP address whenever a request is made Since there are only 5 global IP addresses in the example above there can only be 5 mappings at any one time In other words much like static NAT only 5 local machines can access the Internet at any one time However contrary to static NAT the router will discard the mapping between the global and local IP addresses after a certain length of time which is quite long so rarely happens or after the session is finished an example of a session is when requesting a web page the entire page has completed downloading The most common implementation of NAT is to define a r
93. lows you to enable or disable the Event Error log and begin recording events View Log File This displays the Event Error Log file shown below 20441832 35 35 35 24 36 39 36 39 20435832 35 35 35 2d 36 39 36 39 20429832 35 35 35 2d 36 39 36 39 20423977 35 35 35 2d 36 39 36 39 20399432 35 35 35 2d 36 39 36 39 20393432 35 35 35 2d 36 39 36 39 20387432 35 35 35 2d 36 39 36 39 20381561 35 35 35 2d 36 39 36 39 20375432 35 35 35 2d 36 39 36 39 20369432 35 35 35 2d 36 39 36 39 20363432 35 35 35 2d 36 39 36 39 20357543 35 35 35 2d 36 39 36 39 20342832 35 35 35 2d 36 39 36 39 20336832 35 35 35 2d 36 39 36 39 20330832 35 35 35 2d 36 39 36 39 20325005 35 35 35 2d 36 39 36 39 20318832 35 35 35 2d 36 39 36 39 amp amp gt aA aA Sr u er Se u u u 5 T9 I9 I9 9 I9 I9 I9 I9 Next EXIT The parameters are described as follows e Code A special code for categorizing events Some codes include 0 Cold Start 1 Link Change 2 Tx Abort 3 Rx Abort 4 Connect Disconnect 5 NAT Request 6 DHCP Request 74 DI 206 ISDN Remote Router e Port The interface on which an event occurs Time Tick times denoting when events occurred Data Data that helps technical support personnel evaluate the event Trace Buffer This feature captures packets in a buffer to help D Link technical support personnel identify problems with your router 1 Trace Buffer Configura
94. ms This allows the ISDN line to be used for voice as well as data calls Dial On Demand The Dial On Demand feature allows a DI 206 to automatically place a call to a Remote Node whenever there is traffic coming from any workstation on the LAN Local Area Network to that remote site Bandwidth On Demand Your DI 206 supports bandwidth up to 128 kbps over a single ISDN BRI line It incorporates MLPPP Multi Link PPP to bundle two B channels over a BRI line In addition the router dynamically allocates bandwidth between the two B channels increasing or decreasing bandwidth as needed to allow for greater efficiency in data transfer It supports BAP Bandwidth Allocation Protocol and BACP Bandwidth Allocation Control Protocol to manage the number of links in the multi link bundle Full Network Management The DI 206 incorporates SNMP Simple Network Management Protocol support and menu driven network management via an RS 232 or Telnet connection RADIUS Remote Authentication Dial In User Service The RADIUS feature allows you to use a central external Unix or NT based server to support thousands of users PPP Security The DI 206 supports PAP Password Authentication Protocol and CHAP Challenge Handshake Authentication Protocol RIP 1 RIP 2 Your DI 206 supports both RIP 1 and RIP 2 Routing Information Protocol versions 1 and 2 exchanges with other routers DHCP Support Dynamic Host Configuration Protocol DHCP Dyn
95. n for the Translation Mode parameter Each entry in this configuration can be used to map a single global address and multiple contiguous local addresses to each other Global IP Dynamic Disable Disable Disable lt Disable gt Disable o SAVE EXIT of the parameters are the same as in Dynamic NAT except the Global IP is a solitary global address Global IP This is a single globally unique IP Address of the global interface the interface to which it is assigned in this case one of the ISDN interfaces that is valid on the Internet This screen below is how the NAT IP Pool appears if Static NAT was chosen for the Translation Mode parameter Each entry in this configuration is used to map a single global IP address a single local IP address Global IP i EXER 2 0 0 0 0 110 3 20 20 20 1 110 4 20 20 20 1 110 5 20 20 20 1 1 0 Static NAT Disable Disable Disable Disable Disable SAVE EXIT 57 DI 206 ISDN Remote Router The parameters are described as follows Global IP This is a single global IP Address that is valid on the Internet or on the same subnet of the global interface Local IP This is a single local IP Address that is not valid on the Internet e State Enables or disables this entry Static NAPT This screen below is how the NAT IP Pool appears if Static NAPT wa
96. network on the LAN which can happen when Multiple Home Configuration is set up the router will send out an ARP request to obtain the MAC address of the destination computer or router and deliver the packet Note that defining Static ARPs can speed up delivery since the router won t need to send out an ARP request III In the case where the router finds a match in the routing table which includes IP Static Routes it uses the Gateway address and Interface numbers to identify the correct Remote Network Profile to use to dial out From the Remote Network Profile the router gets the telephone number and other information and dials out establishes a connection and delivers the packet If you have a connection to the Internet it is very important that you define the default next hop router in the IP Static Routes submenu of the console program as your ISP see the ZP Static Routes section of this manual for more detailed configuration information This is because if a user on your LAN makes a request to download a web page for the first time for instance since it is the first time the DI 206 will not have any record of the web page s IP address If no default next hop router is defined the request will be dropped and the user will get a Destination Unreachable error message However if a default next hop router is defined in the IP Static Routes the DI 206 will pass this request on to the ISP the request will go through and the user will rece
97. ngs Appendix D Technical Specifications a list of specifications about the DI 206 ISDN router Appendix E Country ID Numbers lists country ID numbers which must be entered when setting up the ISDN line on the router These numbers have no relation to the International Country Codes used by your telephone company Regardless of the application it is important that you follow the steps outlined in Chapter 2 Installation to correctly connect your DI 206 to your LAN You can then refer to other chapters of the manual depending on your specific installation requirements What This Manual Doesn t Cover This manual assumes that you know how to use your computer and are familiar with your communications software If you have questions about using either one refer to the manual for the product Other Resources For more information about your DI 206 check the following sources DI 206 ISDN Remote Router Quick Start Guide Support disk containing RouteMan a Windows based configuration program Packing List Before you proceed further check all items you received with your DI 206 against this list to make sure nothing is missing The complete package should include One DI 206 ISDN router One power adapter One RS 232 cable One unshielded twisted pair UTP cable One frequently asked questions FAQ and application notes diskette One Quick Installation Guide This User s Guide 9 9
98. ns are described 1 forward This allows the routing of the frame if it has met the criteria of the corresponding filter 2 drop This drops doesn t allow routing for a specific frame that has met the criteria of the corresponding filter 3 disable This does not apply the protocol independent filter Interface This applies the filter to a specific interface either LAN or one of the ISDN interfaces Offset This defines the reference byte for the Length parameter described below The Offset is the number of bytes octets from the beginning of the first byte of the frame header immediately after the preamble The range of the offset parameter is from 0 to 255 octets The first byte in a packet has an offset 0 Length This is the number of bytes octets from 0 to 8 to compare from the offset value the Offset reference byte Value This is a 16 digit hexadecimal field defining the actual bit values used to compare with the frame data at the specified Offset position Mask This is a 16 digit hexadecimal bit mask used as an operand in the bit wise AND operation that will be applied to the Value parameter The IP Filter is specifically an IP protocols filter allowing you to among other things firewall your network prohibiting specific packets from entering or going out 45 DI 206 ISDN Remote Router from your network It is necessary to have good knowledge of IP protocol before effectively
99. nt of incidents where CRS carrier signal lost and COL both occur at the same time These two events happen simultaneously as a result of jabber produced by faulty networking equipment usually NIC s ISDN Counter Table ISDN Bl Tx Packets Rx Packets Tx Bytes Rx Bytes Tx Discard Packets Rx Unknown Packets Tx Error Packets Rx Discard Packets Tx Underrun Packets Rx Error Packets Tx Lost CTS Packets Rx NOA Packets Rx Abort Packets Rx CRC Packets Rx Overrun Packets Rx CD Lost Packets Rx Framing Err Packets Rx Parity Err Packets o00000000000 e Tx Packets The total number of valid packets transmitted by the router since the last reset e Tx Bytes The total number of bytes transmitted by the router e Tx Discard Packets The number of packets dropped by the router Tx Error Packets The number of invalid packets transmitted by the router This hardware counter shows the sum of Collisions Abort and Underrun packets e Tx Underrun Packets Runt packets This counter shows the number of packets transmitted by the router that are less than the allowed 64 octets minimum length Underrun packets occur due to jam signals generated by collisions backpressure etc Tx Lost CTS Packets The number of Clear To Send packets that were lost by the router Rx Packets The total number of packets received by the router 69 DI 206 ISDN Remote Router Rx Bytes The total number of bytes cont
100. ntitled Configuration and Management and Using Telnet for detailed instructions on using Telnet to configure your DI 206 A Warning on Connection Cables ISDN and Ethernet cables are very similar to each other It is important that you use the correct cable for each connection otherwise your router could be damaged Before connecting or disconnecting an RS 232 cable between two devices turn both devices off to avoid any chance of damaging them Step 1 Setting up the Console The initial setup of the DI 206 requires connecting a console to the 9 pin RS 232 Diagnostic port on the router s rear panel A serial cable is supplied with the router in order to make this connection A console can be a terminal such as a VT 100 or a normal PC running terminal emulation software such as Microsoft HyperTerminal included with Windows The terminal emulation software needs to be configured to the following parameters VTIOO terminal emulation 9600 baud o No parity 8 data bits 1 start bit 1 stop bit No flow control Step 2 Connecting the Console to the Router A serial cable is included in the DI 206 package To connect this cable plug its nine pin connector into the 9 pin RS 232 Diagnostic port on the router s rear panel then connect the other end to the serial port on the rear of your computer or data terminal Please make sure both machines are turned off before making this connection After the connection is
101. ommend your D Link product to a friend OYes LINo know yet 10 Your comments on this product
102. ontiguous with the network portion Forwarding LAN This enables or disables communications between this router and other router s on the LAN e State ISDN This is a link method between this interface and adjacent router s The methods are described 1 AUTO This obtains and utilizes the IP address assignment from your ISP Internet Service Provider 2 DISABLE This disables this interface 3 IP STACK This enables this interface and the IP address used will be the value of the parameter P Address 4 UNNUMBER This utilizes a method of connecting this router with adjacent routers without having to define an IP network prefix between them The adjacent routers must have UNNUMBER capability too RIP Routing Protocol This is a distance vector routing protocol RIP is an Internet standard Interior Gateway Protocol defined in RFC 1058 and RFC 1723 Routing information is sent periodically each 30 seconds or triggered by topology change to an adjacent router The adjacent router must be using the same protocol Setting this to RIPV amp V2 will give the router the ability to make routing information exchanges with any adjacent router 23 DI 206 ISDN Remote Router RIP Routing Mode This parameter allows the router to specify the extent to which it partakes in the RIP on this port The options are described below 1 None The router will not participate in any RIP exchange with adjacent router
103. ortion and a host device portion The network and host portions of the address are different lengths for different classes of networks as shown in the table below e 18 24 3 Class A hostid cess BT m esc EIS class fili fifo multicast address PE sare ort Networks attached to the Internet are assigned class types that determine the maximum number of possible hosts per network The previous figure illustrates how the net and host portions of the IP address differ among the three classes Class A is assigned to networks that have more than 65 535 hosts Class B is for networks that have 256 to 65534 hosts Class C is for networks with less than 256 hosts UE Class E IP Network Classes Class Maximum Network Addresses Host Maximum Number of Portion in Parenthesis Number of Networks in Hosts per Class Network A 126 1 0 0 0 to 126 0 0 0 16 777 214 B 16 382 128 1 0 0 to 191 254 0 0 65 534 C 2 097 150 192 0 1 0 to 223 255 254 0 254 DI 206 ISDN Remote Router Note network addresses outside of these ranges Class D and E are either reserved or set aside for experimental networks or multicasting When an IP address s host portion contains only zero s the address identifies a network and not a host No physical device may be given such an address The network portion must start with a value from 1 to 126 or from 128 to 223 Any other value s in th
104. ough telephone lines to another router at a branch office for example The IP Address is the network address of the branch office The Gateway Address is the IP Address of the ISDN port on the branch office router This configuration assumes there is a modem on ISDN2 maintaining a dial up connection to the branch office IP Networking Under the IP Configuration sub menu the IP Networking function can toggle to connect or disconnect this router from the entire IP network When IP Networking is disabled all routing functions are stopped The only IP Address the router will act on is its own via Telnet for example Router Advertisement When this option is enabled the router will periodically send out ICMP packets that announce itself on the network These ICMP packets are utilized by the Windows 98 or later operating system which will automatically update the default gateway setting on the computer in which it 15 installed SNMP Agent Configuration The Simple Network Management Protocol SNMP defined in STD 15 RFC 1157 is a protocol governing the management and the monitoring of IP network devices and their functions The DI 206 supports the use of SNMP to acknowledge communication between management stations and itself Basically the DI 206 when connected to the network acts as an SNMP agent a software process that responds to queries using SNMP to provide status and statistics about the router Following is a description of
105. present a common network domain State This enables or disables the dynamic IP Pool function 40 DI 206 ISDN Remote Router Static IP Pool The Static IP Pool configuration functions in much the same way as the Dynamic IP Pool configuration The only difference is that a particular IP address can be assigned to a particular host This is used for hosts such as servers that need to have static IP addresses to function properly or to make them accessible to remote users The host is identified by the MAC address of its NIC which must be entered on this screen 5 2 1 2 Static IP Pool Configuration EXIT Select an entry from the screen above and press Enter The following screen appears IP Address 202 93 47 130 Netmask 255 255 255 0 Gateway 202 93 47 254 DNS IP 140 113 23 1 1 WINS IP 0 0 0 0 State enable MAC Address 0 0000 4959924 Domain Name dlink com 1 SAVE EXIT The parameters above are described below e IP Address This is the static IP address to be assigned MAC Address This specifies the physical address of the particular host that will receive the above IP address 41 DI 206 ISDN Remote Router other parameters Netmask Gateway DNS IP WINS IP State amp Domain Name are identical to those in Dynamic IP Pool screen in the previous section DHCP Relay Agent The DHCP Relay Agent feature allows the DI 206 to act as a go between for
106. r runtime software is lacking functionality contained in a more recent version Downloading new software will only replace the runtime software and will not affect any configuration settings you have made Upon running the new software the router will be configured exactly as you had it before downloading the new software The runtime software image file must be stored on a TFTP server and accessed via the LAN DI 206 Router Software Update Menu Software Update Control Enable Software Update Mode Network Boot Protocol lt TFTP ONLY gt Boot Server IP Address 10 2 77 2 Boot File Name 4 work di206 runtime imagen206run sys Last Boot Server Address 0 0 0 0 Last IP Address 10 2 77 80 Update Software from Configuration file Yes SAVE EXIT K Connected 0 09 06 vT100 9600 amp N 1 SCROLL CAPS NUM Capture Print echo Items listed in the above menu are described as follows e Software Update Control This toggles disable and enable e Software Update Mode This specifies downloading the image file from a Network server on the local LAN e Boot Protocol This setting is for a local network download and has two options TFTP and BootP amp TFTP e TFTP File Transfer Protocol Using this setting assumes all other items on this screen have been filled out e BootP amp TFTP BootP is run first and sends your router IP Addresses for the TFTP server and the router and tell
107. rameters are described as follows e Interface The LAN interface must use Ethernet Fast Ethernet and is displayed here This setting cannot be adjusted e IP Address This is the router s IP Address for the LAN interface e Subnet Mask This mask shows how the LAN is to be divided into network subnet and host parts Default Gateway This is the default gateway for the LAN If this router will be the default gateway for the LAN then the address should be 0 0 0 0 e Send BootP request upon power up If set to Yes when the router boots up it will attempt to acquire the path to the image file the TFTP server IP Address and the routers own IP Address System Reset The system reset function enables you to reset the DI 206 without powering off Some setting changes require a system reset in order for them to take effect A system reset will not affect the router s settings but will clear all tables including the routing table and all SNMP counters and tables It is also used to initiate a software update 86 DI 206 ISDN Remote Router Software Update The Software Update option is used to change the software in the flash memory of the router This is the runtime software that is configured by the console and is used to setup the router and is described in full in the preceding chapter The runtime software should only be updated if you are encountering problems with your current runtime software or you are certain you
108. ranchl6 NAT IP Pool EXIT For any NAT entry you must configure two different screens The first one is accessible by positioning the cursor over the name field and hitting lt Enter gt in the window shown above this corresponds to the field Branchl After configuring the NAT options in the Name field you must save the changes EXIT and position the cursor over the NAT IP Pool to configure variables there Name Field Configuration Screen The configuration screen for the name field appears as follows 54 DI 206 ISDN Remote Router Name see Global Interface ISDN Ll gt Local Interface LAN gt Translation Mode Static gt State Enable SAVE EXIT The parameters are described as follows e Name This is a 12 character alphanumeric user defined name used to identify the network address translation e Global Interface This is the interface corresponding to the Global IP and Range parameters in the NAT table to form unique IP address es known to the outside regional or Internet routers on this interface Local Interface This is the interface corresponding to the Local IP and Range parameters in the NAT table to form local IP address es known only to this interface and the network within e Translation Mode This offers four types of NATs Static NAT Maps one global IP address to one local IP address After all global IP addresses are ass
109. rap Manager Configuration essere 28 SNMP Authenticated Trap o eeu ie Ee Peto 28 Advanced FUNCTIONS iie td tede e px 29 Remote Access Configuration DHE Ps Cont Surat 38 Filter Configuration 2 42 Multiple Home Configuration 47 Static 49 NAT Configuration 50 Telnet Discovery Enable 60 DNS Configuration 2 61 Radius Configuration 63 Multi Link PPP Conti Suirations er Ree Pe nennen onen 63 Admin Configurations sei ptt fe adt tg ut eq d ete 65 System Maintenance 66 SYSE a TEEN ML CUTEM MEET Runtime Tables e Log and Trace esee Pt eer eet SN Re ede esie dees eee OD LEN Software Update E SY SENE Restart coves eset eerie et RETE ER HEP P EE ENERO CI e PEASE Factory Rese tics sn e A tobe eed rus e ee ee elle dutch ois 7 System Settings Backup Restore eese esee Eon IN a ne nennen nne nnne 82 PROM SYSTEM CONFIGURATION eere nennen enun nn nnne nnn nnn nana 85 System Confi Surat On E 85 TCP IP Parameters Configuration oreet BT css Rn 86 System Reset Software Up
110. re having trouble using an 58 DI 206 ISDN Remote Router application over the Internet and you are using NAPT you may need to exempt certain port numbers from the NAPT port translation process Please refer to the user guide for the program to find out whether it transmits and receives data only through specified IP port numbers In order for these programs to work with NAPT the IP port numbers required by these applications must be entered in the Configure NAPT for Special APs screen shown below 5 6 2 for Special APs In the above window position the cursor on any of the numbered name fields and press Enter This will take you to the NAPT configuration screen for special applications shown below Application Name 1 State Enable gt Protocol Start Port End Port Connection Type l lt TCP gt 6112 6112 lt OutgoingControl gt 2 UDP 6112 6112 lt IncomingData gt lt TCP gt 10 1 o lt Disable gt 4 TCP o 1 10 Disable gt 5 TCP 0 1 0 Disable gt 6 TCP 0 1 0 lt 1 gt 7 TCP a 0 Disable gt 8 TCP o 10 Disable gt SAVE EXIT The fields in the above window are described as follows e Protocol UDP or TCP This field designates the type of packets that will be acted on e Start Port Some applications can only send data over a certain range of port numbers Thus all port numbers in the spe
111. red in order to get the built in ISDN modem to function properly to perform other routing functions and to manage your IP network This can now be done by using the console the included Web based Configuration Utility or Telnet For more information about configuring or managing the router please refer to the next chapter Configuration and Management 15 DI 206 ISDN Remote Router Configuration and Management After the initial startup POST test the router will prompt you for login and password This is the opening page of the router s out of band configuration program called the Console program The Console program is stored in the Flash memory chips in the router and the settings are written in EEPROM chips in the router It is the most basic level for configuring and managing the router and the network to which it is connected DI 206 Router Console User Name Admin Password OK If you re starting the router for the first time the default login and password is Admin the login and password are case sensitive alphanumeric characters Note that once you are in the Main Menu if there is no activity for more than 5 minutes the router will automatically log you out Your first endeavor should be to increase the timeout time by adjusting the appropriate value in the System Information sub menu The router can also be configured remotely through a LAN or ISDN connection by using t
112. refer to the list below for country ID numbers used to configure the ISDN interface of the router 00 Taiwan Germany Sweden France Switzerland Holland Finland Denmark U K Australia Norway Italy China Singapore Malaysia Spain Portugal Israel Poland Czech Republic Hungary Slovenia Estonia Slovakia New Zealand South Korea Philippines International Thailand Turkey Greece Argentina Austria Bangladesh Belgium Brazil Bulgaria Canada Chile Colombia Egypt Hong Kong India Indonesia Iran Iraq Ireland Mexico Peru Portugal Romania Russia Saudi Arabia South Africa Ukraine Sri Lanka 101 DI 206 ISDN Remote Router Appendix F Configuration File The router can be configured when performing a Software Update through a configuration file The configuration file can hold many settings for the router including IP Addresses for all ports path to the boot server and various port settings The configuration file is very useful if you wish to update your software and keep all or most of your settings the same The configuration file should be saved with the extension SYS in the same directory as the runtime image file software update file An example configuration file is shown below Please note that Comment This line describes the a
113. rofile 30 31 DI 206 ISDN Remote Router Remote Network Profiles 30 Remote 30 Remote 1 2 Remote Operation Overview 29 Retry Co nt 33 Retry Timer alas 33 Router Configuration Utility 13 80 Routing Mode seen 24 Routing Protocol sese 23 routing table o e te eere 31 RS223 2 iiss ice tete 2 9 12 90 94 runtime software cessere 87 S SAVE olde ante 88 ent DRE E 50 Send BootP 86 Set Peer IP as Default Gateway 37 Simple Network Management ProtocolSee SNMP Single User Account sss 1 3 SMT 21e ete p EU 94 SNMP este a aae 2 26 27 SNMP Agent Configuration 26 SNMP Authenticated Trap 28 SNMP Community sese 27 SNMP Community String 27 28 SNMP Trap 28 Software 80 87 Software Update Control 87 88 Static ARP une nee 49 Static ARPS 2 4 31 Static IP Pool ote oto Ses 41 Static NAPT iiec 58 Static NAT tede epe pepe 57 Statistics 5 82 8 Reese 67
114. router you must make sure all ports to be utilized on the router have valid IP addresses Even if you will not use the ISDN or WAN ports you should at the very least make sure the LAN port is assigned a valid IP address This is required for telnet in band SNMP management and related functions such as trap handling and TFTP firmware download IP Addresses The Internet Protocol IP was designed for routing data between network sites all over the world and was later adapted to allow routing between networks often referred to as subnets within any site IP includes a system by which a unique number can be assigned to each of the millions of networks and each of the computers on those networks Such a number is called an IP address To make IP addresses easy to understand the originators of IP adopted a system of representation called dotted decimal or dotted quad notation Below are examples of IP addresses written in this format 201 202 203 204 189 21 241 56 125 87 0 1 Each of the four values in an IP address is the ordinary decimal base 10 representation of a value that a computer can handle using eight bits binary digits 15 and 05 The dots are simply convenient visual separators Zeros are often used as placeholders in dotted decimal notation 189 21 241 56 can therefore also appear as 189 021 241 056 IP networks are divided into three classes on the basis of size A full IP address contains a network p
115. rs uu eccccceccccccseccccseecccntececcusccccuseccecseeccccseeccueecenseececsseecesecceasecceaneseeccutecceauence 98 TPP OTE ae ee ee Sea wn nh a Rete aoa de sate EA 98 APPENDIX D TECHNICAL SPECIFICATIONS eere nennen nnnm nnn nnnm nnn 99 APPENDIX E COUNTRY ID NUMBERS 101 APPENDIX F CONFIGURATION FILE eere rennen nnn nnnm nnn nnn 102 Configuration File Example ast e ded head tette 102 INDEX GU PVP WP npn Pp IRRE EEE BDENBRRENERWEUER EERWETER FERN 104 DI 206 ISDN Remote Router Introduction Congratulations on your purchase of a D Link DI 206 series remote access router with integrated Ethernet hub and ISDN T A No larger than an ordinary modem your router offers inexpensive yet complete telecommunications and internetworking solutions for your home or branch office It is ideal for everything from Internet browsing to receiving calls from Remote Dial in Users and making connections to other LANs via Remote Nodes Distinguishing features of the DI 206 include support for a full range of networking protocols including TCP IP Transmission Control Protocol Internet Protocol also known as IP This complete solution also includes remote dial in user support an Internet single user account Network Address Translation option extensive network management capabilities and solid security features Product Features The DI 206 rout
116. rver State Enables or disables recursive DNS on this router Lookup Host Table Enables or disables DNS to reference up to eight host names defined in the Host Table shown below e DNS Domain Name The domain name suffix in which the router resides to be appended to the host name defined in the host table e Forward DNS queries to A large server dedicated to resolving domain names on the Internet This field should contain the IP Address for the DNS closest to you e DNS Cache State When this item is enabled the router will add the domain names and IP Addresses it retrieves from DNS replies to it s DNS cache 61 DI 206 ISDN Remote Router Host Table The host table allows the router to recognize host names on the network Up to eight host names can be entered in the table Your network servers especially your mail server should be defined here Leftover places in the table can be assigned to individual hosts to speed up routing In the example below the host name ctsnow is combined with the domain name defined in the DNS Configuration submenu above in this case dlink com to produce ctsnow dlink com The mapping in the example of ctsnow dlink com to the IP Address of 11 1 1 3 is only valid for computers which set the DI 206 router as their DNS server 8 DNS Configuration Host Table IP Host Name State 1 11 1 1 3 etsnow Enable gt 2 0 0 0 0 Disable 3
117. ry above and then press Enter The following screen appears 49 DI 206 ISDN Remote Router IP Address MAC Address Ox 000000000000 State Disable SAVE EXIT The parameters are described as follows e IP Address This is the IP address of the host you wish to define a static ARP for MAC Address This is the physical address of the host that is the authorized owner of the IP address e State This toggles enable and disable NAT Configuration Network Address Translation NAT is a routing protocol that allows your network to become a private network that is isolated from yet connected to the Internet It does this by changing the IP address of packets from a global IP address usable on the Internet to a local IP address usable on your private network but not on the Internet and vice versa NAT has two major benefits First NAT allows many users to access the Internet using a small number or even a single global IP address This can greatly reduce the costs associated with Internet access and also helps alleviate the current shortage of Internet IP addresses Secondly the NAT process creates a firewall which hides your local network from Internet users providing a degree of security to your Internet connection To be successfully implemented NAT should be used only when the majority of network traffic remains on the local network In cases where a large percentage of network traffic is
118. s 2 Listen The router will incorporate routing information from adjacent routers but will not send its own routing table 3 Talk The router will send adjacent routers its own routing table but will not incorporate routing information from them 4 Both The router will incorporate routing information from adjacent routers and will send adjacent routers it s own routing table e P Multicasting This feature enables or disables the router s ability to route IP Multicast packets from one interface to another for example from the LAN ports to the ISDN port IP Multicasting is a bandwidth saving method for transmitting data to more than one host IP Multicasting is often used when sending receiving audio or video data When IP Multicasting is enabled the router will search its multicast forwarding table and depending on the result of the search will either forward the packet or add the group to the table If IP Multicasting is disabled all multicast packets received by the router will be dropped effectively limiting multicasting to the LAN The router can also perform DVMRP if this feature is enabled see Multicast Protocol below which allows the DI 206 to share multicast information with other routers enabling IP multicasting over the ISDN port Multicast Protocol If this parameter is set to None the router will only use the Internet Group Management Protocol IGMP if IP Multicasting is enabled above This effe
119. s chosen for the Translation Mode parameter Each entry in this configuration can be used to map a global address and port to a local address and port Notice that the global address will be the external IP address of the global interface Static Global IP Port Local IP Port State 1 210 11 22 3 BN 2 1 1 5 21 Enable gt 2 210 11 22 3 0 0 0 0 0 0 lt Disable gt 3 210 11 22 3 o 0 0 0 0 1 Disable 4 210 11 22 3 o 0 0 0 0 1 lt Disable gt 5 210 11 22 3 o 0 0 0 0 1 0 lt Disable gt SAVE EXIT The parameter not explained in the previous sections is described as follows e Port This is a destination port number used by TCP and UDP to de multiplex incoming IP packets In the above example incoming packets with the global destination IP Address 211 11 22 3 and global destination TCP UDP port 21 will be translated to a packet with the local destination IP Address 1 1 1 5 and local TCP UDP port 21 Port 21 15 assigned to FTP servers Please see Appendix D for more commonly assigned port numbers or RFC 1700 for a more complete list Configure NAPT for Special Aps Some applications programs that are used over the Internet such as Microsoft NetMeeting Diablo CU See Me and X windows send information to a certain port number or within a specified range of port numbers The exact port number used is specific to the application However if you find that you a
120. s the router the path to the software update image file Then TFTP will be used to download the image file Boot Server IP Address This specifies the IP address of the server to be used to download the image file Boot File Name This specifies a complete path and filename on the TFTP server If you choose to use a configuration file this setting must show the path 87 DI 206 ISDN Remote Router and filename to the configuration file If you are not using a configuration file this must show the path and filename to the software update image file e Last Boot Server IP Address This shows the last boot server used to download an image file This is for reference only e ast IP Address This shows the last IP address used for the LAN interface Again this is for reference only The LAN port must have an IP address in order to access the TFTP server via the LAN network Update Software from Configuration File Either Yes or No If Yes the software update procedure will try to access a configuration file located at the path defined in the above Boot File Name Please ensure that the path and file name of the image file is listed in the configuration file If set to No the update procedure will try to find an image file at the Boot File Name path Please see Appendix F Configuration File for more information about configuration files After the parameters are set in the Software Update screen SAVE the changes
121. se a cross wired cable or cable converter Step 6 Powering Up Devices for Initial Configuration Plug in the included 18V DC 750 mA power adapter into the power jack on the router s rear panel You should have now connected the RS 232 cable to the console the ISDN phone line one or more Ethernet cables and the power adapter At this point in the installation process you can now power up the console computer run the terminal emulation software if necessary and then power up the DI 206 Step 7 Initial Configuration of the Router After the console is properly connected and both devices are powered on as described in the preceding sections you should see the router run through the power on self test POST Finally it will arrive at the logon screen shown below If the login screen does not appear press Ctrl lt R gt to refresh the screen 12 DI 206 ISDN Remote Router DI 206 Router Console User Name Admin 1 Password 1 OK To log on to the router use the factory set username and password Admin without the quotes Please note that the user name and password are case sensitive Upon entering the username and password using the lt tab gt key to jump to the next field position the cursor on OK and press lt Enter gt You will then see the following Main Menu Main Menu System Information Interface Configuration Network Configuration SNMP Agent Configura
122. sers that have workstations with remote access capabilities e g Windows 95 to dial in using an ISDN terminal adapter TA to access the network resources without physically being in the office What This Manual Covers This manual is divided into eleven parts DI 206 ISDN Remote Router Chapter One Introduction describes many of the technologies implemented in the DI 206 as well as product features Chapter Two Installation is designed as a step by step guide to installing the router Chapter Three Configuration and Management provides detailed explanations for the console program that is used to setup and configure the router Chapter Four PROM System Configuration provides information on the PROM program an abbreviated version of the console program that is used to download new software into the router in case of problems with the console program Chapter Five Using Telnet describes how to setup and use telnet to configure the router Chapter Six Using RADIUS Authentication describes how to setup and use a RADIUS server to manage user authentication and centralize passwords Appendix A Troubleshooting describes some common problems setting up the router and suggests solutions Appendix B IP Concepts gives detailed explanations and recommendations for setting up an IP network on your LAN Appendix JP Protocol and Port Numbers lists many commonly used IP setti
123. shown below Dynamic NAT This screen below is how the NAT IP Pool appears if Dynamic NAT was chosen for the Translation Mode parameter Each entry in this configuration can be used to map multiple contiguous global addresses and local addresses to each other Dynamic NAT Global IP Range Local IP Range State 1 EBEN 1 10 0 0 0 0 110 lt Disable gt 2 20 20 20 1 0 0 0 0 0 ra lt Disable gt 3 20 20 20 1 10 0 0 0 0 ra lt Disable gt 4 20 20 20 1 1 0 0 0 0 0 ra lt Disable gt 5 20 20 20 1 10 0 0 0 0 ra lt Disable gt SAVE EXIT The parameters are described below Global IP An IP Address that is globally unique and valid on the Internet It is the base global address for the global addresses that will be recognized by the interface in the Global Interface parameter Range This is the range of contiguous global addresses above and including the base Global IP Local IP An IP Address that is only used in the stub domain since it is not unique It is the base local address for the local addresses that will be recognized by the interface in the Local Interface parameter Range This is the range of contiguous local addresses above and including the base Local IP State This toggles enable disable for this NAT entry 56 DI 206 ISDN Remote Router Dynamic NAPT Static NAT This screen below is how the NAT IP Pool appears if Dynamic NAPT was chose
124. similar to the following joeuser Password joepassword Each user should have a user name password record in the Users database It is also possible to configure an IP address for each user by adding a line in the Users database similar to the following Ip user Password iusespecificip Framed IP Address 192 168 0 117 93 DI 206 ISDN Remote Router Appendix A Troubleshooting This chapter contains some problems you may run into when using your router After each problem description we have provided some instructions to help you diagnose and solve the problem Some Common Problems With the DI 206 None of the LEDs are on when you power up the router Check the power cord and the power supply and make sure it is properly connected to your DI 206 If the error persists you may have a hardware problem In this case you should contact technical support Connecting the RS 232 cable cannot access the console program Check to see if the DI 206 is connected to your computer s serial port Check to see if the communications program is configured correctly The communications software should be configured as follows VTIOO terminal emulation 9600 Baud rate No parity 8 Data bits 1 Stop bit Problems With the ISDN Line If you are having problems making a connection through the ISDN line try performing a Loopback Test in the console program choose System Maintenance Diagnostic Loopback Test
125. ss Answers to the following questions help us to support your product 1 Where and how will the product primarily be used OOffice OTravel Business Business Use 2 How many employees work at installation site 11 employee L12 9 110 49 050 99 1100 499 1500 999 11000 or more 3 What network protocol s does your organization use OXNS IPX OTCP IP ODECnet OOther 4 What network operating system s does your organization use OD Link LANsmart ONovell NetWare LINetWare Lite OSCO Unix Xenix OPC NFS 3 Open Vines ODECnet Pathwork OWindows NT OWindows NTAS OWindows 95 OOther 5 What network management program does your organization use OD View OHP OpenView Windows OHP OpenView Unix OSunNet Manager ONovell NMS ONetView 6000 OOther 6 What network medium media does your organization use OFiber optics OThick coax Ethernet OThin coax Ethernet 010BASE T UTP STP 1100BASE TX 01100BASE T4 01100VGAnyLAN OOther 7 What applications are used on your network ODesktop publishing OSpreadsheet DWord processing DCAD CAM ODatabase management DAccounting Other 8 What category best describes your company LIEngineering LIEducation OFinance OHospital OLegal Oinsurance Real Estate Manufacturing ORetail Chainstore Wholesale OGovernment OTransportation Utilities Communication OVAR 1System house company OOther 9 Would you rec
126. tic Route 25 IP Static Route Table 26 IP Static Routes nnnnnnn 31 PA A A RS 2 san een 6 19 22 ISDN Counter Table 69 ISDN Interface eer 30 ISDN LDI uie eren 37 ISDN Hne rer 29 ISDN 30 EP 31 Key neu Reken 63 93 L 2 3 4 6 19 22 26 48 94 95 LAN Counter 68 LAN POE eoo ote 13 Layer 2 Filter 43 44 6ase TImexassic aee 40 LEISTEN EK 24 Local Area Network See LAN Local Interface eee 55 local IP address 50 Log and Trace 70 73 Lookup Host Table 61 M MAC 31 MAC Address esses 41 50 Main Menu cc cccccccccsssssseccceceesenssaeeeeeees 16 Management Kessel 16 Masks eU ete eiu 45 Menus Main A aa 16 Microsoft NetMeeting 55 MIP Yan ecu pA 47 MEPPD AR duri 63 Multicast Protocol esses 24 Multi Link PPP sene 63 Multiple Home Configuration 47 N enges 51 Dynamic NAPT sees 56 Static NAPT ne 55 NAT itasse it eode ER 50 Dynam
127. tion 2 View Trace Buffer Trace Buffer Configuration 7 4 2 1 Trace Buffer Configuration Interface Direction In gt State Enable SAVE EXIT The parameters are described as follows e Interface Select LAN ISDN or ISDN B2 75 DI 206 ISDN Remote Router e Direction Select In Out or Both e State Enables or disables the Trace buffer feature View Trace Buffer Displays the header of packets captured in the buffer 12566640 12566642 12566661 12566664 Interface LAN The contents are described as follows Interface This is the interface from which the packets were captured Time In clock ticks The time the packet was captured e Data The contents of the header of the packet Packet Triggered Last Call This feature allows you to see the packet that caused the last call to be made 7 4 3 Packet Triggered Last Call Packet Type IP 45 00 00 28 35 97 40 00 06 66 SC 27 4 OB DZ 78 CB OB DA 00 SO 01 2C AE 53 23 AO CE 50 11 IF BO 99 DB 00 00 20 20 20 20 20 20 EXIT 76 DI 206 ISDN Remote Router Diagnostic This feature tests the connection between the router and connected peripherals on a given interface Please note that if Telnet is used to access the router only the Ping Test diagnostic is available from the menu below 7 5 Diagnostic IP Ping Test Loopback Test
128. tion Advanced Functions Admin Configuration System Maintenance LOGOFF Step 7 Configuring the LAN Port Preparing the router for connection to a LAN only requires enabling the LAN port enabling IP networking assigning the LAN port an IP address and enabling Telnet if necessary After the LAN port is configured all other features on the router can be configured remotely through the LAN by using the included Windows based Router Configuration Utility or Telnet Regardless the router can always be configured using a console connected to the RS 232 Console port To configure the LAN 13 DI 206 ISDN Remote Router 1 The LAN port must be enabled in the Interface Configuration sub menu Choose Interface Configuration LAN Position the cursor over the State item and press space bar The State will change from Disable to Enable Position the cursor on the SAVE option at the bottom of the screen and press Enter to save the new setting Choose Exit in the sub menus to return to the Main Menu 2 Enable IP Networking Choose Network Configuration IP Configuration Position the cursor over the third item IP Networking and press space bar to Enable it Position the cursor on the Save option at the bottom of the screen and press Enter to save the new setting 3 Assign an IP address to the LAN port in the Network Configuration sub menu of the Main Menu
129. uter as shown below Router Inbound Data Packet on LAN Inbound Data Packet on ISDN Destination IP Source NAT Destination IP Source Local IP Address IP Address 2088 transiator Global IP Address IP Address 28 In the Inbound Data Packet above the Destination IP Address is the IP address that is translated by NAT The Source IP Address is the IP address of a computer outside the private network And the Data portion of the packet is the information payload borne by the packet for example the contents of a web page The actual information in the NAT table depends whether the router is implementing NAT or NAPT This section discusses the NAT protocol as opposed to NAPT which is discussed in the next section NAT is the initial protocol set forth by RFC 1631 and provides a means in which private networks can communicate with the Internet by using a small number of IP addresses In our discussion we will use the example IP addresses listed in the table below and the network diagram shown on page 51 Global IP Addresses Local IP Addresses for use with NAT assigned to computers on the local network 200 100 50 1 192 168 100 2 200 100 50 2 192 168 100 3 200 100 50 3 192 168 100 4 200 100 50 4 192 168 100 5 200 100 50 5 192 168 100 6 192 168 100 7 192 168 100 8 192 168 100 9 192 168 100 10 52 DI 206 ISDN Remote Router Please note that in the above tab
130. which you wish to store the settings file TFTP Time Interval The time between requests to occupy TFTP server time If the router doesn t receive a response ACK from the TFTP server within the time interval defined here it will assume the request has been dropped and send another File Name Specifies the complete path and filename on the TFTP server for the settings file Restore System Settings 7 9 2 Restore System Settings Remote IP Address NCC TFTP Time Interval O File Name 1 Start Restore EXIT Items in the window are described below 83 DI 206 ISDN Remote Router Remote IP Address This is the IP address of the TFTP server on which you wish to restore the system settings file TFTP Time Interval The time between requests to occupy TFTP server time If the router doesn t receive a response ACK from the TFTP server within the time interval defined here it will assume the request has been dropped and send another File Name Specifies the complete path and filename on the TFTP server for the settings file 84 DI 206 ISDN Remote Router PROM System Configuration The PROM program is run before the normal console runtime configuration program in the router s Flash Memory Thus the PROM System Configuration can be used if there are problems with the router s console program Specifically the PROM Configuration program has procedures to initialize the
131. will check it routing table and try to locate the IP Address Count The number of pings packets that will be sent A value of 0 will cause pings to be sent continuously Delay 10ms The amount of time in 10 millisecond intervals between each ping in the Count Start Ping Test Press Enter or Return to begin the test The loopback test is used to test the path ISDN network between your phone company s switch and the router 78 DI 206 ISDN Remote Router Loopback Test Press Enter on the screen above Phone Number Packet Length 64 Start Test EXIT Phone Number Enter your own phone number here to establish a connection between your ISDN B1 and B2 channels e Packet Length 1 to 1500 bytes This field allows you to define different sized data packets to test the ISDN line e Start Test Press Enter or Return to begin the test System LAN The System LAN test is used to diagnose the LAN port It can only be run if the LAN port is disabled in the Interface Configuration submenu 79 DI 206 ISDN Remote Router LAN Port 1 is enable now Diagnostic Aborted strike any key to continue System ISDN This test diagnoses the ISDN ports It can only be run if the ISDN port is disabled in the Interface Configuration submenu ISDN Chan 1 is enable now Diagnostic Aborted strike any key to continue Software Updat
132. words for dial in users will no longer be checked in the dial in user profile Instead the authentication request will be passed on to the Radius server Remote networks routers dialing into the router will still be authenticated using the remote network profile Multi Link PPP Configuration Multi link PPP MLPPP is a standard RFC 1990 and RFC 1717 for inverse multiplexing a method of combining individually dialed channels into a single higher speed data stream MLPPP is an extension of PPP that supports the ordering 63 DI 206 ISDN Remote Router of data packets across multiple channels Although MLPPP can be implemented on any WAN device it was the rapid emergence of ISDN BRI as a cost efficient higher bandwidth alternative to modems which has driven the evolution and acceptance of MLPPP Typically MLPPP is used to combine the speed of two ISDN BRI B Channels to get 128Kbps of virtual capacity Before implementing MLPPP on the DI 206 please ensure that your ISP or the device to which you are connecting supports and is configured for MLPPP MLPPP can be implemented in two ways dynamically through the use of the Bandwidth on Demand BOD and statically BOD causes the second ISDN port to place a call and add bandwidth to the ISDN connection when the BOD High Threshold is exceeded for the Add Bandwidth Delay period Bandwidth can also be subtracted when ISDN throughput falls below the BOD Low Threshold and Subtract Bandwidth D
133. your ISDN voice lines you must enable these settings in order for the call waiting feature to function There are 4 special operations for using call waiting flash means a very brief hanging up of the phone In other words for the first option below flash 0 click the hang up button on your phone very quickly and then press the number 0 on your telephone s keypad Flash 0 disconnect the first phone call established Flash 1 disconnect the second phone call established Flash 2 switch between the two phone calls Flash 3 speak to both parties simultaneously if conference calling is enabled by your phone company POTS Lines Plain Old Telephone Service Enables or disables phone calls on the Phone 1 and Phone 2 jacks on the rear of the router Global Reception When this is enabled the Phone 1 and Phone 2 jacks will receive all phone calls directed to them by the telephone company s switch When disabled the router will check incoming calls to the Phone 1 and 2 jacks against the telephone numbers specified in the A B Adapter 1 and 2 fields above Block Outgoing CLID When this is enabled your ISDN data phone number and voice phone numbers will never be sent out when trying to establish a connection Thus even if sites being called have Caller ID they still won t be able to know your phone number Inbound Authentication This defines the authorization protocol that will be used when accepting

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