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1. 6 want to test my Internet connection A Check your TCP IP settings For Windows 98 and Millennium Refer to Windows Help for details Make sure Obtain IP address automatically is selected in the settings For Windows 2000 1 2 3 7 Click Start Settings and Control Panel Double click Network and Dial Up Connections Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option In the Components checked are used by this connection box highlight Internet Protocol TCP IP and click the Properties button Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected Click the OK button in the Internet Protocol TCP IP Properties window and click the OK button in the Local Area Connection Properties window Restart the computer if asked Click the OK button in the Internet Protocol TCP IP Properties window and click the OK button in the Local Area Connection Properties window Restart the computer if asked For Windows XP The following instructions assume you are running Windows XP with the default interface If you are using the Classic interface where the icons and menus look like previous Windows versions please follow the instructions for Windows 2000 1 2 3 Click Start and Control Panel Click the Network and Internet Connections icon and then the Network Connections
2. Before a computer can communicate with the Router TCP IP must be enabled TCP IP is a set of instructions or protocol all PCs follow to communicate over a wired or wireless network Your PCs will not be able to utilize networking without having TCP IP enabled Windows Help provides complete instructions on enabling TCP IP Shared Resources If you wish to share printers folders or files over your network Windows Help provides complete instructions on utilizing shared resources Network Neighborhood My Network Places Other PCs on your network will appear under Network Neighborhood or My Network Places depending upon the version of Windows you re running Windows Help provides complete instructions on adding PCs to your network 55 Appendix D Glossary Adapter A device that adds network functionality to your PC Backbone The part of a network that connects most of the systems and networks together and handles the most data Bandwidth The transmission capacity of a given device or network Beacon Interval Data transmitted on your wireless network that keeps the network synchronized Bit A binary digit Boot To start a device and cause it to start executing instructions Bridge A device that connects different networks Broadband An always on fast Internet connection Browser An application program that provides a way to look at and interact with all the information on the World Wide Web Buffer A s
3. POP3 incoming 110 to 110 Both 192 168 15 102 X When you have completed the configuration click the Save Settings button 11 1 need to set up online game hosting or use other Internet applications If you want to play online games or use Internet applications most will work without doing any port forwarding or DMZ hosting There may be cases when you want to host an online game or Internet application This would require you to set up the Router to deliver incoming packets or data to a specific computer This also applies to the Internet applications you are using The best way to get the information on what port services to use is to go to the website of the online game or application you want to use Follow these steps to set up online game hosting or use a certain Internet application A B C Access the Router s Web based Utility by going to http 192 168 15 1 or the IP address of the Router Go to the Applications amp Gaming gt Port Range Forward tab Enter any name you want to use for the Application Enter the port range of the service you are using For example if you have a web server you would enter the range 80 to 80 Select the protocol you will be using TCP or UDP or select Both Enter the IP address of the PC or network device that you want the port server to go to For example if the web server s Ethernet adapter IP address is 192 168 15 100 you would enter 100 in the field provided 4
4. This is a dedicated high speed connection type called Point to Point Protocol over Ethernet PPPoE PPPoE is similar to a dial up connection but PPPoE does not dial a phone number when establishing a connection It also will provide the Router with a dynamic IP address to establish a connection to the Internet By default a DHCP server on the LAN side is enabled on the Router If you already have a DHCP server running on your network you MUST disable one of the two DHCP servers If you run more than one DHCP server on your network you will experience network errors such as conflicting IP addresses To disable DHCP on the Router see the Basic Setup section in Chapter 5 Configuring the Router Chapter 3 Getting to Know the Router The Back Panel The Router s ports and the Reset button are located on the back panel of the Router Internet Phonel Phone2 Ethernet 1 4 Reset Button Power Figure 3 1 Back Panel This Internet port connects to your cable or DSL modem For your primary Internet phone line the Phonel port allows you to connect the Router to your telephone or fax machine using an RJ 11 telephone cable not included If you have a second Internet phone line the Phone2 port allows you to connect the Router to your second telephone or fax machine using an RJ 11 telephone cable not included These four Ethernet ports connect to network devices such as PCs print servers or additional swi
5. s Internet port Verify that the Status page of the Router s Web based Utility shows a valid IP address from your ISP Turn off the computer Router and cable DSL modem Wait 30 seconds and then turn on the Router cable DSL modem and computer Check the Status tab of the Router s Web based Utility to see if you get an IP address 43 8 9 am not able to access the Router s Web based Utility Setup page A Refer to Problem 6 want to test my Internet connection to verify that your computer is properly connected to the Router B Refer to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter to verify that your computer has an IP Address Subnet Mask Gateway and DNS C Seta static IP address on your system refer to Problem 5 need to set a static IP address on a PC D Refer to Problem 14 am a PPPoE user and need to remove the proxy settings or the dial up pop up window can t get my Virtual Private Network VPN to work through the Router Access the Router s web interface by going to http 192 168 15 1 or the IP address of the Router and go to the Security gt VPN tab Make sure you have IPsec passthrough and or PPTP passthrough enabled VPNs that use IPSec with the ESP Encapsulation Security Payload known as protocol 50 authentication will work fine At least one IPSec session will work through the Router however simultaneous IPSec sessions may be
6. 3 Setup Tab Basic Setup Automatic Configuration DHCP 13 Static IP If you are required to use a permanent IP address then select Static IP Internet IP Address This is the IP address that the Router has when seen from the Internet Your ISP will provide you with the IP Address you need to specify here Subnet Mask This is the Router s Subnet Mask as seen by external users on the Internet including your ISP Your ISP will provide you with the Subnet Mask Default Gateway Your ISP will provide you with the Default Gateway Address Static DNS 1 2 Your ISP will provide you with at least one DNS Domain Name System Server IP Address PPPoE Some DSL based ISPs use PPPoE Point to Point Protocol over Ethernet to establish Internet connections for end users If you use a DSL line check with your ISP to see if they use PPPoE If they do you will have to enable it User Name and Password Enter the User Name and Password provided by your ISP Connect on Demand and Max Idle Time You can configure the Router to cut the Internet connection after it has been inactive for a specific period of time Max Idle Time If your Internet connection has been terminated due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand click the radio button If you want your Internet connection to remain on at
7. EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT WILL LINKSYS LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT The foregoing limitations will apply even if any warranty or remedy provided under this Agreement fails of its essential purpose Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to You Please direct all inquiries to Linksys P O Box 18558 Irvine CA 92623 63 Appendix G Regulatory Information FCC STATEMENT This product has been tested and complies with the specifications 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 according to 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 is found 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 between the equipment or devices Connect the equipmen
8. Give our advice line a call at Or fax your request in to If you experience problems with any Linksys product you can call us at Don t wish to call You can e mail us at If any Linksys product proves defective during its warranty period you can call the Linksys Return Merchandise Authorization department for obtaining a Return Authorization Number at Details on Warranty and RMA issues can be found in the Warranty Information section in this Guide 24 hour 1 866 596 8464 toll free from US and Canada https www callvantage att com http www linksys com or ftp linksys com 800 546 5797 LINKSYS 949 823 3002 800 326 7114 Support linksys com 949 823 3000 65
9. IP address of the Router Go to the Applications amp Gaming gt Port Range Forward tab B Disable or remove the entries you have entered for forwarding Keep this information in case you want to use it at a later time C Click the DMZ tab D Enter the Ethernet adapter s IP address of the computer you want exposed to the Internet This will bypass the NAT security for that computer Please refer to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address Once completed with the configuration click the Save Settings button 13 1 forgot my password or the password prompt always appears when saving settings to the Router Reset the Router to factory default by pressing the Reset button for 30 seconds and then releasing it If you are still getting prompted for a password when saving settings then perform the following steps 46 A Access the Router s web interface by going to http 192 168 15 1 or the IP address of the Router Enter the default password admin and click the Administration gt Management tab B Enter a different password in the Router Password field and enter the same password in the second field to confirm the password C Click the Save Settings button 14 1 am a PPPoE user and need to remove the proxy settings or the dial up pop up window If you have proxy settings you need to disable these on your computer Because the Router is the gatewa
10. MAC address of the PC you are currently using to configure the Router then click the Clone Your PC s MAC button The Router will automatically detect your PC s MAC address so you do NOT have to call your ISP to change the registered MAC address to the Router s MAC address It is recommended that the PC registered with the ISP is used to open the MAC Address Clone screen When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help Enable Dissdie User Deine ertr TT DF ET ET Fes ET Figure 5 9 Setup Tab MAC Address Clone mac address the unique address that a manufacturer assigns to each networking device 19 Router with 2 Phone Ports The Security Tab Firewall When you click the Security tab you will see the Firewall screen The Router s firewall enhances the security of your network You can also enable a variety of filters to further protect your network and block anonymous Internet requests Firewall The firewall uses Stateful Packet Inspection SPI to check the incoming data transmissions before allowing them to enter your network To enhance the security of your network this feature is enabled by default and cannot be disabled Additional Filters Filter Proxy Use of WAN proxy servers may compromise the Router s security If you deny proxy you will b
11. To secure the Router change the Password from its default There are six main tabs Setup Security Access Restrictions Applications amp Gaming Administration and Status Additional tabs will be available after you click one of the main tabs Setup e Basic Setup Enter the Internet connection and network settings on this screen e DDNS Enable the Router s Dynamic Domain Name System DDNS feature on this screen e MAC Address Clone If you need to clone a MAC address onto the Router use this screen 11 Security e Firewall On this screen you can configure a variety of filters to enhance the security of your network e VPN To enable or disable IPSec PPTP and or L2TP Passthrough use this screen Access Restrictions e Internet Access This screen allows you to permit or block specific kinds of Internet usage and traffic Applications amp Gaming e Port Range Forward Set up public services or other specialized Internet applications on your network e Port Trigger To set up triggered ranges and forwarded ranges for Internet applications click this tab e UPnP Forward Use this screen to alter UPnP forwarding settings e DMZ Click this tab to allow one local user to be exposed to the Internet for use of special purpose services Administration e Management On this screen alter the Router s password and access privileges as well as the SNMP and UPnP settings e Log If you want to view or save activity logs cli
12. UDP For each application list the triggered port number range Check with the Internet application documentation for the port number s needed Start Port Enter the starting port number of the Triggered Range End Port Enter the ending port number of the Triggered Range Forwarded Range Protocol Select the protocol TCP or UDP For each application list the forwarded port number range Check with the Internet application documentation for the port number s needed Start Port Enter the starting port number of the Forwarded Range End Port Enter the ending port number of the Forwarded Range Enable Check the Enable box to enable the application you have defined Port Triggering for a specific application will not function if its Enable box is left unchecked This is disabled unchecked by default When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help Chapter 5 Configuring the Router TI he Applications amp Gaming Tab Port Trigger A Dision of nce Systems me Applications amp Gaming Agelcetion Protocol Stet End Protocol Stat End Ensbie regs o e r Cres COOL rea o e e fea Pier fea pier fea crear fea crear e __ fear fer r_ _ fey r Creager cr r e B m 5 pe f m ie A i fest FT er Figure 5 15 Applications amp Gam
13. a network of computers Download To receive a file transmitted over a network DSL Digital Subscriber Line An always on broadband connection over traditional phone lines DTIM Delivery Traffic Indication Message A message included in data packets that can increase wireless efficiency Dynamic IP Address A temporary IP address assigned by a DHCP server Encryption Encoding data transmitted in a network Ethernet A networking protocol that specifies how data is placed on and retrieved from a common transmission medium Finger A program that tells you the name associated with an e mail address Firewall A set of related programs located at a network gateway server that protects the resources of a network from users from other networks Firmware The programming code that runs a networking device Fragmentation Breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet FTP File Transfer Protocol A protocol used to transfer files over a TCP IP network Full Duplex The ability of a networking device to receive and transmit data simultaneously Gateway A device that interconnects networks with different incompatible communications protocols 57 Half Duplex Data transmission that can occur in two directions over a single line but only one direction at a time Hardware The physical aspect of computers telecommunications and other in
14. all times enter 0 in the Max Idle Time field Otherwise enter the number of minutes you want to have elapsed before your Internet access disconnects Keep Alive and Redial Period This option keeps your Internet access connected indefinitely even when it sits idle If you select this option the Router will periodically check your Internet connection If the connection is down then the Router will automatically re establish the connection To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds When you are finished click the Save Settings button Then click the Status tab and click the Connect button to start the connection NOTE For DSL users if you need to enable PPPoE support remember to remove any PPPoE A applications that are installed on your PCs 4 sttictP o Internet IP Address 0 0 co fo Subnet Mask 255 f255 255 o Gateway fo fo fo fo N N an Static DNS 1 fo fo fo fo Staticons2 jo Jo Jo Jo Figure 5 4 Static IP static ip address a fixed address assigned to a computer or device connected to a network subnet mask an address code that determines the size of the network default gateway a device that forwards Internet traffic from your local area network PPPoE v User Name Password C Connect on Demand Max Idle Time Min Keep Alive Redial Period 30 Sec Figure 5 5 PPPoE pppoe a type of broadband connection that
15. fax machine has a registered connection to AT amp T through the corresponding port Phone 1 or Phone 2 The connection is registered if your Internet phone service account is active This LED is not lit when there is no registered connection It flashes when the phone is being used or an incoming call has been detected Internet Green The Internet LED lights up when the Router is connected to your cable or DSL modem If the LED is flashing the Router is sending or receiving data over the Internet port Proceed to Chapter 4 Connecting the Router g to Know the Router Chapter 4 Connecting the Router Overview This chapter includes two sets of instructions If the Broadband Router with 2 Phone Ports will be the only router in your network follow the instructions in Connecting the Router to Your Broadband Modem If you already have a router in your network and want to add the Broadband Router with 2 Phone Ports follow the instructions in Connecting One Router to Another Connecting the Router to Your Broadband Modem 1 Make sure that all of your hardware is powered off including the Router PCs and broadband modem 2 Connect your broadband modem s Ethernet cable to the Router s Internet port 3 Plug a standard telephone into the Router s Phonel port a telephone or fax machine to the Phone port Otherwise the Router or the telephone wiring in your IMPORTANT Do not connect the Phone port to a telepho
16. from your ISP Internet Connection Type The Router supports four connection types Automatic Configuration DHCP Static IP PPPoE and PPTP Each Basic Setup screen and available features will differ depending on what kind of connection type you select Automatic Configuration DHCP By default the Router s Internet Connection Type is set to Automatic Configuration DHCP and it should be used only if your ISP supports DHCP or you are connecting through a dynamic IP address Chapter 5 Configuring the Router How to Access the Web based Utility Optional Settings required by some SPa Network Address Server Settings DHCP Tino Setting Address http 192 168 15 1 Figure 5 1 Router s IP Address Enter Network Password d 2x yo Please type your user name and password Site 192 168 15 1 Realm RT41P2 UserName O a I Save this password in your password list Cox cea Password Figure 5 2 Router Login Broadband Router With 2 Phone Ports Automatic Configuration DHCP Router Name Ree Host Mame omane of mu po Sre Eo twop ares 132 ise D TT Serat vasa ss 255255 0 DHCP Server G enable C Disable Starting P Address 492 160 1 100 rant ey Cert Lease mme T mieutes 0 meer one dey Satie ONS 1 fi fe fe fo seos ft fo fe fo wes Ce Om CM a Tea lore GMT 08 00 Pacific Time USA amp Canada hd autcmatcaty edict Cock for dayight saving changes Figure 5
17. not working check the Router Ensure that it is connected and powered on Connect to it and check its settings If you cannot connect to it check the LAN and power connections e If the Router is configured correctly check your Internet connection DSL cable modem etc to see if it is working correctly You can remove the Router to verify a direct connection e Manually configure the TCP IP with a DNS address provided by your ISP e Make sure that your browser is set to connect directly and that any dial up is disabled For Internet Explorer click Tools Internet Options and then the Connection tab Make sure that Internet Explorer is set to Never dial a connection For Netscape Navigator click Edit Preferences Advanced and Proxy Make sure that Netscape Navigator is set to Direct connection to the Internet Frequently Asked Questions How do configure the Router for Internet phone service Run the Setup Wizard or follow the instructions of the Quick Installation or User Guide to install and configure the Router for your type of Internet connection To configure the Router for Internet phone service visit https www att com linksys and sign up for or activate your account How do I make a phone call Pick up your phone and dial 1 area code phone number You must dial 1 and the area code for all calls even local ones Can I make calls if my Internet connection is down No Your high speed Internet connection must be active w
18. numbers they are using For example port 80 HTTP is used for web port 21 FTP is used for FTP and port 25 SMTP outgoing and port 110 POP3 incoming are used for the mail server You can get more information by viewing the documentation provided with the server you installed Follow these steps to set up port forwarding through the Router s Web based Utility We will be setting up web ftp and mail servers 44 Access the Router s Web based Utility by going to http 192 168 15 1 or the IP address of the Router Go to the Applications amp Gaming gt Port Range Forward tab Enter any name you want to use for the Application Enter the port range of the service you are using For example if you have a web server you would enter the range 80 to 80 Select the protocol you will be using TCP or UDP or select Both Enter the IP address of the PC or network device that you want the port server to go to For example if the web server s Ethernet adapter IP address is 192 168 15 100 you would enter 100 in the field provided Check Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address Check the Enable option for the port services you want to use Consider the examples below Application Start and End Protocol IP Address Enable Web server 80 to 80 Both 192 168 15 100 X FTP server 21 to 21 TCP 192 168 15 101 X SMTP outgoing 25 to 25 Both 192 168 15 102 X
19. outside of the United States of America and Canada are responsible for all shipping and handling charges ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THE WARRANTY PERIOD ALL OTHER EXPRESS OR IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF NON INFRINGEMENT ARE DISCLAIMED Some jurisdictions do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to You This warranty gives You specific legal rights and You may also have other rights which vary by jurisdiction This warranty does not apply if the Product a has been altered except by Linksys b has not been installed operated repaired or maintained in accordance with instructions supplied by Linksys or c has been subjected to abnormal physical or electrical stress misuse negligence or accident In addition due to the continual development of new techniques for intruding upon and attacking networks Linksys does not warrant that the Product will be free of vulnerability to intrusion or attack TO THE EXTENT NOT PROHIBITED BY LAW IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA REVENUE OR PROFIT OR FOR SPECIAL INDIRECT CONSEQUENTIAL INCIDENTAL OR PUNITIVE DAMAGES REGARDLESS OF THE THEORY OF LIABILITY INCLUDING NEGLIGENCE ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT INCLUDING ANY SOFTWARE
20. possible depending on the specifics of your VPNs VPNs that use IPSec and AH Authentication Header known as protocol 51 are incompatible with the Router AH has limitations due to occasional incompatibility with the NAT standard Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and your local IP address For example if your VPN server assigns an IP address 192 168 15 X X is a number from 1 to 254 and your local LAN IP address is 192 168 15 X X is the same number used in the VPN IP address the Router will have difficulties routing information to the right location If you change the Router s IP address to 192 168 2 1 that should solve the problem Change the Router s IP address through the Basic Setup tab of the Web based Utility If you assigned a static IP address to any computer or network device on the network you need to change its IP address accordingly to 192 168 2 Y Y being any number from 1 to 254 Note that each IP address must be unique within the network Your VPN may require port 500 UDP packets to be passed to the computer that is connecting to the IPSec server Refer to Problem 11 need to set up online game hosting or use other Internet applications for details Check the Linksys website at www linksys com for more information 10 1 need to set up a server behind my Router To use a server like a web ftp or mail server you need to know the respective port
21. settings once it is connected to the Internet again NOTE Do not restore the factory defaults unless you are having difficulties with the Router and have uring the Router tion Tab Factory Defaults A Divan of Osca Systems mc Famas tenen 8 Broadband Router With 2 Phone Ports atap Administration Figure 5 23 Administration Tab Factory Defaults 33 Broadband Router with 2 Phone Ports The Administration Tab Backup and Restore The Backup and Restore screen allows you to back up and restore the Router s configuration Backup and Restore Please select a file to restore In the field provided enter the name of the configuration file you want to restore or click the Browse button to find this file Backup To create a backup configuration file click the Backup button and follow the on screen instructions Restore After you have selected the appropriate file click the Restore button and follow the on screen instructions For help information click Help The Administration Tab Reboot The Reboot screen allows you to remotely reboot the Router from your computer Reboot Device Reboot Click the Yes radio button if you want to reboot the Router Otherwise keep the default setting No After you have clicked the Yes radio button click the Save Settings button to reboot the Router or click the Cancel Changes button to undo your change For help information click Help Chapter 5 Configuring
22. the Router The Administration Tab Backup and Restore LINKSYS A Division of Cinco Systema ine Administration Figure 5 24 Administration Tab Backup and Restore A Division of Onco Systema ine Administration Device Reboot C Yes G mw WROTE To retoct the device select Ves and cick Save Setings button Figure 5 25 Administration Tab Reboot 34 Broadband Router with 2 Phone Ports The Status Tab Router A Disian of Cinco Spits ine The Router screen displays information about the Router and its current settings Status Router Information Current Firmware Version This shows the version and date of the firmware that is currently installed Previous Firmware Version This shows the version and date of the firmware that was previously installed Current Time The current time and date are displayed here MAC Address The MAC Address of the Router s Internet interface is displayed here Router Name This shows the name you have assigned to the Router Host Name The Host Name for the Router is shown here Domain Name The Domain Name for the Router is displayed here Figure 5 26 Status Tab Router Internet Configuration Type n NOTE The on screen information will vary Login Type This indicates the type of Internet connection you are using A depending on the Internet Connection Type selected on the Setup screen Login Status For these dial up style connections PPPoE and PPTP the s
23. 2 168 15 100 to 192 168 15 150 using the DHCP server on the Router To set a static IP address you can only use the ranges 192 168 15 2 to 192 168 15 99 and 192 168 15 151 to 192 168 15 254 Each PC or network device that uses TCP IP must have a unique address to identify itself in a network If the IP address is not unique to a network Windows will generate an IP conflict error message You can assign a static IP address to a PC by performing the following steps For Windows 98 and Millennium A B Click Start Setting and Control Panel Double click Network In The following network components are installed box select the TCP IP gt associated with your Ethernet adapter If you only have one Ethernet adapter installed you will only see one TCP IP line with no association to an Ethernet adapter Highlight it and click the Properties button In the TCP IP properties window select the IP address tab and select Specify an IP address Enter a unique IP address that is not used by any other computer on the network connected to the Router You can only use an IP address in the ranges 192 168 15 2 to 192 168 15 99 and 192 168 15 151 to 192 168 15 254 Make sure that each IP address is unique for each PC or network device Click the Gateway tab and in the New Gateway prompt enter 192 168 15 1 which is the default IP address of the Router Click the Add button to accept the entry Click the DNS tab and make sure the DNS Enabled option is selec
24. 5 Check Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address F Check the Enable option for the port services you want to use Consider the examples below Application Start and End Protocol IP Address Enable UT 7777 to 27900 Both 192 168 15 100 X Halflife 27015 to 27015 Both 192 168 15 105 X PC Anywhere 5631 to 5631 UDP 192 168 15 102 X VPN IPSEC 500 to 500 UDP 192 168 15 100 X When you have completed the configuration click the Save Settings button 12 1 can t get the Internet game server or application to work If you are having difficulties getting any Internet game server or application to function properly consider exposing one PC to the Internet using DeMilitarized Zone DMZ hosting This option is available when an application requires too many ports or when you are not sure which port services to use Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting since forwarding has priority over DMZ hosting In other words data that enters the Router will be checked first by the forwarding settings If the port number that the data enters from does not have port forwarding then the Router will send the data to whichever PC or network device you set for DMZ hosting Follow these steps to set DMZ hosting A Access the Router s Web based Utility by going to http 192 168 15 1 or the
25. Changes button to undo your changes For help information click Help A Dision of Caco Spstaems ine Femmare Varsan 1 00 4 Broadband Router With 2 Phone Ports Security Figure 5 10 Security Tab Firewall spi stateful packet inspection firewall A technology that inspects incoming packets of information before allowing them to enter the network 20 Broadband Router with 2 Phone Ports The Security Tab VPN The VPN screen allows you to allow VPN tunnels using IPSec PPTP or L2TP protocols to pass through the Router VPN Passthrough IPSec Passthrough IPSec Internet Protocol Security is a suite of protocols used to implement secure exchange of packets at the IP layer To allow IPSec Passthrough click the Enable button To disable IPSec Passthrough click the Disable button PPTP Passthrough PPTP Point to Point Tunneling Protocol Passthrough allows the Point to Point PPP to be tunneled through an IP network To allow PPTP Passthrough click the Enable button To disable PPTP Passthrough click the Disable button L2TP Passthrough Layer 2 Tunneling Protocol Passthrough is the method used to enable Point to Point PPP sessions via the Internet on the Layer 2 level To allow L2TP Passthrough click the Enable button To disable L2TP Passthrough click the Disable button When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to u
26. Connect the Other Router 9 Power on your PC s Proceed to Chapter 5 Configuring the Router Figure 4 9 Connect the Power 10 Chapter 5 Configuring the Router Overview Linksys recommends using the Setup CD ROM for first time installation of the Router If you do not wish to run the Setup Wizard on the Setup CD ROM then you can use the Web based Utility to configure the Router For advanced users you may configure the Router s advanced settings through the Web based Utility http www att com linksys after you have installed and configured the Router Refer to NOTE If you want to sign up for Internet phone service or activate your account visit Chapter 6 Signing up for AT amp T CallVantages Service for more information This chapter will describe each web page on the Utility and each page s key functions The Utility can be accessed via your web browser through use of a computer connected to the Router For a basic network setup most users only have to use the following screens of the Utility Basic Setup On the Basic Setup screen enter the Internet connection settings provided by your ISP If you do not have this information you can call your ISP to request the settings Once you have the setup information for your specific type of Internet connection then you can configure the Router Management Click the Administration tab and then the Management tab The Router s default password is admin
27. LINKSYS A Division of Cisco Systems Inc Cisco SYSTEMS Model No RT41P2 AT Copyright and Trademarks Specifications are subject to change without notice Linksys is a registered trademark or trademark of Cisco Systems Inc and or its affiliates in the U S and certain other countries Copyright 2004 Cisco Systems Inc All rights reserved Other brands and product names are trademarks or registered trademarks of their respective holders WARNING This product contains chemicals including lead known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling How to Use this Guide Your guide to the Broadband Router with 2 Phone Ports has been designed to make understanding networking with the Router easier than ever Look for the following items when reading this User Guide This checkmark means there is a note of interest and is something you should pay special attention to while using the Router This exclamation point means there is a caution or warning and is something that could damage your property or the Router This question mark provides you with a reminder about something you might need to do while using the Router gt gt e In addition to these symbols there are definitions for technical terms that are presented like this word definition Also each figure diagram screenshot or other image is provided with a figure number and descripti
28. T CallVantages Service for more information lan local area network the computers and networking products that make up the network in your home or office ethernet an IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium What s in this Guide This user guide covers the basic steps for setting up a network with a router After going through Chapter 3 Getting to Know the Router most users will only need to use the following chapters Chapter 4 Connecting the Router This chapter instructs you on how to connect the Router to your cable or DSL modem and PCs After you create your network then you will connect the telephones or fax machines to AT amp T CallVantages Service via the Router Chapter 5 Configuring the Router This chapter explains how to configure the Router using your web browser and the Router s Web based Utility You will configure the Router using the settings provided by your ISP Chapter 6 Signing up for AT amp T CallVantages Service When you are ready to sign up for or activate your AT amp T CallVantage Service account refer to the instructions in this chapter When you re finished with the basic steps then you are ready to connect to the Internet You also have other chapter available for reference Chapter 1 Introduction This chapter describes the Router s applications and this User Guide Chapter 2 Networking Basi
29. Verify your account information and confirm that the phone line is registered with AT amp T Make sure that your cable or DSL modem is supported by AT amp T If none of the above works contact AT amp T at 1 866 596 8464 3 reset the Router to its factory default settings How do I configure the settings for my Internet phone service If your Internet phone service account is active the Router will automatically download its Internet phone service settings once it is connected to the Internet again If you do not have an active Internet phone service account visit http www att com linksys to sign up for a new account or activate your account Then follow the on screen instructions 39 4 I m trying to access the Router s Web based Utility but do not see the login screen Instead I see a screen saying 404 Forbidden If you are using Windows Explorer perform the following steps until you see the Web based Utility s login screen Netscape Navigator will require similar steps A B C Click File Make sure Work Offline is NOT checked Press CTRL F5 This is a hard refresh which will force Windows Explorer to load new webpages not cached ones Click Tools Click Internet Options Click the Security tab Click the Default level button Make sure the security level is Medium or lower Then click the OK button 5 I need to set a static IP address on a PC The Router by default assigns an IP address range of 19
30. al balanced ring only 25 Hz 5 per RJ 11 port over 2000 feet 7 32 x 1 89 x 6 10 186 mm x 48 mm x 155 mm 13 33 02 0 38 kg External 12V DC 61 Certifications Operating Temp Storage Temp Operating Humidity Storage Humidity FCC O2C to 402C 322F to 1042F 202C to 602C 42F to 1409F 10 to 85 Non Condensing 5 to 90 Non Condensing 62 Appendix F Warranty Information LIMITED WARRANTY Linksys warrants to You that for a period of one year the Warranty Period your Linksys Product will be substantially free of defects in materials and workmanship under normal use Your exclusive remedy and Linksys entire liability under this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any rebates This limited warranty extends only to the original purchaser If the Product proves defective during the Warranty Period call Linksys Technical Support in order to obtain a Return Authorization Number if applicable BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING If You are requested to return the Product mark the Return Authorization Number clearly on the outside of the package and include a copy of your original proof of purchase RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE You are responsible for shipping defective Products to Linksys Linksys pays for UPS Ground shipping from Linksys back to You only Customers located
31. changes For help information click Help Port Range Forward LIN A Divison of Onos Systems ine Feman Version 1108 Broadband Router With 2 Phone Ports Applications amp Gaming _ 1 w fo Bohs meso 0 w 0 om s g t 0 Eon 210015 0 o o Bom mos 0 eb Bmg moso C e o Ema moso fo fe omy te21c01 6 g t f Bons 18216015 5 g to f Bons taz1eass 0 g to f Bons 1a21e815 T Figure 5 14 Applications amp Gaming Tab Port Range Forward tcp a network protocol for transmitting data that requires acknowledgement from the recipient of data sent udp a network protocol for transmitting data that does not require acknowledgement from the recipient of the data that is sent ip internet protocol a protocol used to send data over a network ip address the address used to identify a computer or device on a network 24 Broadband Router with 2 Phone Ports The Applications amp Gaming Tab Port Trigger The Port Trigger screen allows the Router to watch outgoing data for specific port numbers The IP address of the computer that sends the matching data is remembered by the Router so that when the requested data returns through the Router the data is pulled back to the proper computer by way of IP address and port mapping rules Port Trigger Application Enter the application name of the trigger Triggered Range Protocol Select the protocol TCP or
32. ck this tab Diagnostics Use this screen to check the connections of your network components e Factory Defaults If you want to restore the Router s factory defaults then use this screen Backup and Restore You can back up and restore the Router s configuration if necessary Status e Router This screen provides status information about the Router Local Network This provides status information about the local network e Voice This screen provides status information about the Internet phone lines 12 Broadband Router with 2 Phone Ports How to Access the Web based Utility To access the Web based Utility of the Router launch Internet Explorer or Netscape Navigator and enter the Router s default IP address 192 168 15 1 in the Address field Press the Enter key A screen will appear asking you for your User Name and Password Leave the User Name field blank and enter admin in the Password field Then click the OK button Make the necessary changes through the Utility When you have finished making changes to a screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information on a tab click Help The Setup Tab Basic Setup The Basic Setup screen is the first screen you see when you access the Web based Utility Internet Setup The Internet Setup section configures the Router for your Internet connection type This information can be obtained
33. cs This chapter briefly explains how a network functions Appendix A Troubleshooting This appendix describes some possible problems and solutions as well as frequently asked questions regarding installation and use of the Router Appendix B Finding the MAC Address and IP Address for Your Ethernet Adapter This appendix instructs you on how to find the MAC address or Ethernet address of your PC s Ethernet network adapter Appendix C Windows Help This appendix describes how you can use Windows Help for instructions about networking such as installing the TCP IP protocol Appendix D Glossary This appendix gives a brief glossary of terms frequently used in networking Appendix E Specifications This appendix provides the technical specifications for the Router Appendix F Warranty Information This appendix supplies the warranty information for the Router Appendix G Regulatory Information This appendix supplies the regulatory information regarding the Router Appendix H Contact Information This appendix provides contact information for a variety of Linksys resources including Technical Support Chapter 2 Networking Basics An Introduction to Local Area Networks Simply put a router is a network device that connects two networks together The Router connects your local area network LAN or the group of PCs in your home or office to the Internet The Router processes and regulates the data that travels between these two ne
34. dow and click the OK button in the Local Area Connection Properties window Restart the computer if asked For Windows XP The following instructions assume you are running Windows XP with the default interface If you are using the Classic interface where the icons and menus look like previous Windows versions please follow the instructions for Windows 2000 A B C Tonm Click Start and Control Panel Click the Network and Internet Connections icon and then the Network Connections icon Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option In the This connection uses the following items box highlight Internet Protocol TCP IP Click the Properties button Enter a unique IP address that is not used by any other computer on the network connected to the Router You can only use an IP address in the ranges 192 168 15 2 to 192 168 15 99 and 192 168 15 151 to 192 168 15 254 Enter the Subnet Mask 255 255 255 0 Enter the Default Gateway 192 168 15 1 Router s default IP address Toward the bottom of the window select Use the following DNS server addresses and enter the Preferred DNS server and Alternative DNS server provided by your ISP Contact your ISP or go on its website to find the information Click the OK button in the Internet Protocol TCP IP Properties window Click the OK button in the Local Area Connection Properties window 41
35. down menu and click the radio button beside Enable To disable a policy select the policy number from the drop down menu and click the radio button beside Disable To create an Internet Access Policy 1 Select a number from the Internet Access Policy drop down menu 2 To enable this policy click the radio button beside Enable 3 Enter a Policy Name in the field provided Chapter 5 Configuring the Router The Access Restrictions Tab Internet Access Li A Division of Cinco Systems the Broadband Router With 2 Phone Ports Access Restrictions m Tigidastsdat gt Dolata _ Summary Eres tmabte C Disable Erter Potcy Nome oidesisdel Pex Edit List of POs Dery aiw Beys F ewy anrr ne Fw Cm hem Fa internet occess during selected days and hows Caen ren TSS re Blocked services FTP 21 21 Note only two services SNMP 161 181 can be blocked per policy Website Blocking by URL Address m AES eo Se Figure 5 12 Access Restrictions Tab Internet Access 22 4 Click the Edit List of PCs button to select which PCs will be affected by the policy The List of PCs screen will ist of Pee Marosolt Internet Eplarer provided by Cisca Sy appear You can select a PC by MAC Address or IP Address You can also enter a range of IP Addresses if you List of PCs want this policy to affect a group of PCs After making your changes click the Save Settings button to a
36. dress of the remote host computer that will receive the trap messages UPnP UPnP UPnP allows Windows XP and Me to automatically configure the Router for various Internet applications such as gaming and videoconferencing To enable UPnP click the Enable radio button When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help 30 Broadband Router with 2 Phone Ports The Administration Tab Log The Log screen provides you with a log of all incoming and outgoing URLs or IP addresses for your Internet connection Log Log To keep activity logs select the Enable radio button With logging enabled you can choose to view temporary logs or keep a permanent record using the Logviewer software Click the Disable button to disable this function Log Viewer IP Address For a permanent record of these logs Logviewer software must be used This software is downloadable from the Linksys website www linksys com The Logviewer saves all incoming and outgoing activity in a permanent file on your PC s hard drive In the Log Viewer IP Address field enter the fixed IP address of the PC running the Logviewer software The Router will now send updated logs to that PC Incoming Log Click the Incoming Log button to view a temporary log of the Source IP addresses and Destination Port Numbers for all the incoming Inter
37. e specifics of your VPNs How can I check whether I have static or DHCP IP addresses Ask your ISP to find out How do I get mIRC to work with the Router Under the Applications amp Gaming gt Port Range Forward tab set port forwarding to 113 for the PC on which you are using mIRC If your questions are not addressed here refer to the AT amp T website http www usa att com callvantage faqs index jsp or the Linksys website www linksys com 52 Appendix B Finding the MAC Address and IP Address for Your Ethernet Adapter This section describes how to find the MAC address for your computer s Ethernet adapter so you can use the MAC filtering and or MAC address cloning feature of the Router You can also find the IP address of your computer s Ethernet adapter This IP address is used for the Router s filtering forwarding and or DMZ features Follow the steps in this appendix to find the adapter s MAC or IP address in Windows 98 Me 2000 or XP Windows 98 or Me Instructions 1 Click Start and Run In the Open field enter winipcfg Then press the Enter key or the OK button 2 When the IP Configuration screen appears select the Ethernet adapter you have connected to the Router via a CAT 5 Ethernet network cable 3 Write down the Adapter Address as shown on your computer screen This is the MAC address for your Ethernet adapter and is shown as a Series of numbers and letters The MAC address Adapter Address is what you wi
38. ecurity of your data transmissions If you want to use an SSL connection to remotely manage the Router click the checkbox a remote location and wish to manage the Router Enter the Router s specific Internet IP address in NOTE If the https feature is enabled then enter https lt Internet IP Address gt port when you are in place of lt Internet IP Address gt and enter the Administration Port number in place of the word port LIN Avision of Onco Systeens ine Administration s92 000 16 255 are enable C Diss to Figure 5 18 Administration Tab Management 29 SNMP SNMP Simple Network Management Protocol is a network protocol that provides network administrators with the ability to monitor the status of the Router and receive notification of any critical events as they occur on the network SNMP To enable SNMP check the Enabled box To configure SNMP complete all fields on this screen To disable the SNMP agent remove the checkmark Get Community Enter the password that allows read only access to the Router s SNMP information The default name is public Set Community Enter the password that allows read write access to the Router s SNMP information The default name is private A name must be entered in this field SNMP Trap Community Enter the password required by the remote host computer that will receive trap messages or notices sent by the Router SNMP Trap Destination Enter the IP ad
39. ed Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming Some Internet applications may not require any forwarding When users send this type of request to your network via the Internet the Router will forward those requests to the appropriate PC Before using forwarding you should assign a static IP address to the designated PC If you need to forward all ports to one PC click the DMZ tab Port Range Forward Port Range To add a server using Port Range Forwarding complete the following fields Application Enter the name of the application Start and End Enter the number or range of external port s used by the server or Internet application Check with the Internet application software documentation for more information Protocol Select the protocol TCP or UDP or select Both IP Address Enter the IP address of the server that you want the Internet users to be able to access To find the IP address go to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter Enable Check the Enable box to enable the application you have defined Port Range Forwarding for a specific application will not function if its Enable button is left unchecked This is disabled unchecked by default When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your
40. er Router Chapter 4 Connecting the Router Connecting One Router to Another To connect the Broadband Router with 2 Phone Ports to another router follow these instructions 1 Make sure that all of your hardware is powered off including both routers PCs and broadband modem 2 Disconnect your existing router from the broadband modem PCs and other network devices 3 Connect your broadband modem s Ethernet cable to the Internet port on the back of the Broadband Router with 2 Phone Ports Figure 4 6 Connect the Broadband Modem 4 Plug a standard telephone into the Router s Phonel port a telephone or fax machine to the Phone port Otherwise the Router or the telephone wiring in your IMPORTANT Do not connect the Phone port to a telephone wall jack Make sure you only connect home or office may be damaged NOTE Make sure your telephone is set to its tone setting not pulse 5 Connect one end of an Ethernet network cable to one of the numbered ports on the back of the Router Figure 4 7 Connect a Telephone Connect the other end to the Internet port on the back of the other router Repeat this step to connect PCs or other network devices to the Router 6 Power on the cable or DSL modem 7 Connect the included power adapter to the Router s Power port and then plug the power adapter into an electrical outlet The Power LED on the front panel will light up as soon as the Router powers on Bao eR Figure 4 8
41. essfully from one node to another in a given time period Topology The physical layout of a network TX Rate Transmission Rate UDP User Datagram Protocol A network protocol for transmitting data that does not require acknowledgement from the recipient of the data that is sent Upgrade To replace existing software or firmware with a newer version Upload To transmit a file over a network URL Uniform Resource Locator The address of a file located on the Internet VPN Virtual Private Network A security measure to protect data as it leaves one network and goes to another over the Internet WAN Wide Area Network The Internet WINIPCFG A Windows 98 and Me utility that displays the IP address for a particular networking device 60 Appendix E Specifications Model Standards Ports Buttons Cabling Type LEDs UPnP able cert Network Protocols Voice Protocol Voice Codecs Ring Voltage Ring Frequency Ringer Equivalence Number Dimensions WxHxD Unit Weight Power RT41P2 AT IEEE 802 3 10BaseT IEEE 802 3u 100BaseTX One 10 100 RJ 45 Port for Broadband Modem Four 10 100 RJ 45 Switched Ports Two RJ 11 Phone Ports One Power Port One Reset Button RJ 45 Ethernet Category 5 RJ 11 Standard Phone Cable Power Ethernet 1 4 Phone 1 2 Internet Able TCP IP NetBEUI IPX SPX Session Initiation Protocol SIP v2 G 711 a law G 711p Law G 726 G 729 A G 723 1 40 50 VRMS typic
42. formation technology devices HTTP HyperText Transport Protocol The communications protocol used to connect to servers on the World Wide Web IP Internet Protocol A protocol used to send data over a network IP Address The address used to identify a computer or device on a network IPCONFIG A Windows 2000 and XP utility that displays the IP address for a particular networking device IPSec Internet Protocol Security A VPN protocol used to implement secure exchange of packets at the IP layer ISM band Radio bandwidth utilized in wireless transmissions ISP Internet Service Provider A company that provides access to the Internet LAN The computers and networking products that make up your local network MAC Media Access Control Address The unique address that a manufacturer assigns to each networking device Mbps MegaBits Per Second One million bits per second a unit of measurement for data transmission mIRC An Internet Relay Chat program that runs under Windows Multicasting Sending data to a group of destinations at once NAT Network Address Translation NAT technology translates IP addresses of a local area network to a different IP address for the Internet Network A series of computers or devices connected for the purpose of data sharing storage and or transmission between users NNTP Network News Transfer Protocol The protocol used to connect to Usenet groups on the Internet Node A
43. ges to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help 27 Broadband Router with 2 Phone Ports The Applications amp Gaming Tab DMZ The DMZ screen allows one local user to be exposed to the Internet for use of a special purpose service such as Internet gaming and videoconferencing DMZ hosting forwards all the ports at the same time to one PC Port Range Forwarding is more secure because it only opens the ports you want to have opened while DMZ hosting opens all the ports of one computer exposing the computer to the Internet Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static IP address assigned to it because its IP address may change when using the DHCP function DMZ DMZ To use this feature select Enable To disable DMZ hosting select Disable DMZ Host IP Address To expose one PC enter the computer s IP address To get the IP address of a computer refer to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter Deactivate DMZ by entering 0 in the field When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help A Division of Cinco Systema ne tears Broadband Router With 2 Phone Ports Applicat
44. hanges to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help TZO com E mail Address Password and Domain Name Enter the Email Address Password and Domain Name of the service you set up with TZO Setup Internet IP Address The Router s current Internet IP Address is displayed here Because it is dynamic this will change Status The status of the DDNS service connection is displayed here When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help Figure 5 8 Setup Tab DDNS TZO com 18 Broadband Router with 2 Phone Ports The Setup Tab MAC Address Clone A MAC address is a 12 digit code assigned to a unique piece of hardware for identification like a social security number Some ISPs will require you to register a MAC address in order to access the Internet If you do not wish to re register the MAC address with your ISP you may assign the MAC address currently registered with your ISP to the Router using the MAC Address Clone feature MAC Clone To use MAC address cloning select Enable Otherwise keep the default Disable User Defined Entry Enter the MAC Address registered with your ISP Then click the Save Settings button Clone Your PC s MAC If you want to clone the
45. hared or assigned memory area that is used to support and coordinate different computing and networking activities so one isn t held up by the other Byte A unit of data that is usually eight bits long Cable Modem A device that connects a computer to the cable television network which in turn connects to the Internet CSMA CA Carrier Sense Multiple Access Collision Avoidance A method of data transfer that is used to prevent data collisions Daisy Chain A method used to connect devices in a series one after the other Database A collection of data that is organized so that its contents can easily be accessed managed and updated DDNS Dynamic Domain Name System Allows the hosting of a website FTP server or e mail server with a fixed domain name e g www xyz com and a dynamic IP address 56 Default Gateway A device that forwards Internet traffic from your local area network DHCP Dynamic Host Configuration Protocol A networking protocol that allows administrators to assign temporary IP addresses to network computers by leasing an IP address to a user for a limited amount of time instead of assigning permanent IP addresses DMZ Demilitarized Zone Removes the Router s firewall protection from one PC allowing it to be seen from the Internet DNS Domain Name Server The IP address of your ISP s server which translates the names of websites into IP addresses Domain A specific name for
46. hen configuring the Router You can get the information from your ISP A dynamic IP address is automatically assigned to a device on the network These IP addresses are called dynamic because they are only temporarily assigned to the PC or other device After a certain time period they expire and may change If a PC logs onto the network or the Internet and its dynamic IP address has expired the DHCP server will assign ita new dynamic IP address nat network address translation NAT technology translates IP addresses of a local area network to a different IP address for the Internet static ip address a fixed address assigned to a computer or device that is connected to a network dynamic ip address a temporary IP address assigned by a DHCP server dhcp dynamic host configuration protocol a protocol that lets one device on a local network known as a DHCP server assign temporary IP addresses to the other network devices typically computers A DHCP server can either be a designated PC on the network or another network device such as the Router By default the Router s Internet Connection Type is Obtain an IP automatically DHCP The PC or network device obtaining an IP address is called the DHCP client DHCP frees you from having to assign IP addresses manually every time a new user is added to your network For DSL users many ISPs may require you to log on with a user name and password to gain access to the Internet
47. hen you make Internet phone or fax calls Can I make calls while I m browsing the Internet Yes You can make Internet phone or fax calls while browsing the Internet However your web browsing may affect the quality of your telephone call depending on the amount of upstream data traffic passing through your Internet connection How do I change the features of my Internet phone service account For features such as call waiting or call forwarding go to https www callvantage att com and access your account online 49 What is the maximum number of IP addresses that the Router will support The Router will support up to 253 IP addresses Is IPSec Passthrough supported by the Router Yes enable or disable IPSec Passthrough on the Security gt VPN Passthrough tab Where is the Router installed on the network In a typical environment the Router is installed between the cable DSL modem and the local area network LAN Plug the Router into the cable DSL modem s Ethernet port Does the Router support IPX or AppleTalk No TCP IP is the only protocol standard for the Internet and has become the global standard for communications IPX a NetWare communications protocol used only to route messages from one node to another and AppleTalk a communications protocol used on Apple and Macintosh networks can be used for LAN to LAN connections but those protocols cannot connect from the Internet to the LAN What is Network Address Transla
48. ice Enter the service s name in the Service Name field Select its protocol from the Protocol drop down menu and enter its range in the Port Range fields Then click the Add button If you want to edit a service s settings then select the service in the drop down menu on the left Change its name protocol setting or port range Then click the Modify button To delete a service select it from the list on the left Then click the Delete button 8 If you want to block websites with specific URL addresses enter each URL in a separate field next to Website Blocking by URL Address 9 If you want to block websites using specific keywords enter each keyword in a separate field next to Website Blocking by Keyword 10 Click the Save Settings button to save the policy s settings To cancel the policy s settings click the Cancel Changes button 11 Repeat steps 1 10 to create more policies When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help 23 Broadband Router with 2 Phone Ports The Applications amp Gaming Tab Port Range Forward When you click the Applications amp Gaming tab you will see the Port Range Forward screen Port range forwarding sets up public services on your network such as web servers ftp servers e mail servers or other specialized Internet applications Specializ
49. icon Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option In the This connection uses the following items box highlight Internet Protocol TCP IP and click the Properties button Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected 42 Open a command prompt e For Windows 98 and Millennium click Start and Run In the Open field type command Press the Enter key or click the OK button e For Windows 2000 and XP click Start and Run In the Open field type cmd Press the Enter key or click the OK button In the command prompt type ping 192 168 15 1 and press the Enter key e If you get a reply the computer is communicating with the Router e If you do NOT get a reply check the cable and make sure Obtain an IP address automatically is selected in the TCP IP settings for your Ethernet adapter In the command prompt type ping followed by your Internet IP address and press the Enter key The Internet IP Address can be found in the web interface of the Router For example if your Internet IP address is 1 2 3 4 you would enter ping 1 2 3 4 and press the Enter key e Ifyou get a reply the computer is connected to the Router e If you do NOT get a reply try the ping command from a different computer to verify that your original computer is not the cause of the problem In the command prompt type pi
50. igned by the Router DHCP Clients Table Click the DHCP Clients Table button to view a list of PCs that have been assigned IP addresses by the Router The DHCP Active IP Table screen lists the DHCP Server IP Address Client Host Names IP Addresses MAC Addresses and Expiration dates Click the Delete checkbox to delete a DHCP client listing Click the Refresh button to update the information Click the Close button to return to the Local Network screen Click the Refresh button to update the on screen information For help information click Help Chapter 5 Configuring the Router The Status Tab Local Network LINKSYS A Division of Cinco Systema ine Status MAC aadress COsF 46544623 P Access 432 468 15 1 Subnet Mask 295 255 255 9 OCP Server Enable Stet P Address 492 168 16 100 EdP Adress 92 968 16 149 DHCP Clients Table DHCP Active IP Table OHOP Server IP Ad ess 192 168 15 1 Rovesh Cllent Host Name IP Address MAC Address Expires Dolot r Leone a 18210835300 conto settee TH JAM e2 08 0011 2000 Figure 5 28 DHCP Clients Table 36 Broadband Router with 2 Phone Ports The Status Tab Voice A Onision ot Onco Syston tre The Voice screen displays information about your Internet phone line s Status Auto Config Status Auto Config Status Each time the Router boots up it automatically checks to see if it has the latest configuration for Internet phone service If necessa
51. ility Finger A UNIX command widely used on the Internet to find out information about a particular user such as a telephone number whether the user is currently logged on and the last time the user was logged on The person being fingered must have placed his or her profile on the system in order for the information to be available Fingering requires entering the full user domain address HTTP HyperText Transport Protocol The communications protocol used to connect to servers on the World Wide Web Its primary function is to establish a connection with a web server and transmit HTML pages to the client web browser POP3 Post Office Protocol 3 A standard mail server commonly used on the Internet It provides a message store that holds incoming e mail until users log on and download it POP3 is a simple system with little selectivity All pending messages and attachments are downloaded at the same time POP3 uses the SMTP messaging protocol pter 5 Configurin C yplicatio A Dian of Once Systema re Feman Version 01 Broadband Router With 2 Phone Ports Applications amp Gaming i i q TTT nanana 2 gt rrryvryararr rrerr7xvrx7x770 aaan 3 gaaa0n0 f9a 2 P98 BRR 28 nagan Seve Setings Cancel Changes Figure 5 16 Applications amp Gaming Tab UPnP Forward 26 NNTP Network News Transfer Protocol The protocol used to connect to Usenet groups
52. ing Tab Port Trigger 25 Broadband Router with 2 Phone Ports The Applications amp Gaming Tab UPnP Forward The UPnP Forward screen displays preset application settings as well as options to customize port services for other applications UPnP Forward Application Ten applications are preset For custom applications enter the name of your application in one of the available fields The preset applications are among the most widely used Internet applications They include the following FTP File Transfer Protocol A protocol used to transfer files over a TCP IP network Internet UNIX etc For example after developing the HTML pages for a website on a local machine they are typically uploaded to the web server using FTP Telnet A terminal emulation protocol commonly used on Internet and TCP IP based networks It allows a user at a terminal or computer to log onto a remote device and run a program SMTP Simple Mail Transfer Protocol The standard e mail protocol on the Internet It is a TCP IP protocol that defines the message format and the message transfer agent MTA which stores and forwards the mail DNS Domain Name System The way that Internet domain names are located and translated into IP addresses A domain name is a meaningful and easy to remember handle for an Internet address TFTP Trivial File Transfer Protocol A version of the TCP IP FTP protocol that has no directory or password capab
53. ions amp Gaming Figure 5 17 Applications amp Gaming Tab DMZ 28 id Router with 2 Phone Ports The Administration Tab Management When you click the Administration tab you will see the Management screen This screen allows you to change the Router s access settings as well as configure the SNMP Simple Network Management Protocol and UPnP Universal Plug and Play features Router Password Local Router Access To ensure the Router s security you will be asked for your password when you access the Router s Web based Utility The default password is admin Router Password It is recommended that you change the default password to one of your choice Re enter to confirm Re enter the Router s new Password to confirm it Remote Router Access This feature allows you to access the Router from a remote location via the Internet Remote Management This feature allows you to manage the Router from a remote location via the Internet To enabled Remote Management click the Enable radio button Management Port Enter the port number you will use to remotely access the Router NOTE When you are in a remote location and wish to manage the Router enter http lt Internet IP y Address gt port Enter the Router s specific Internet IP address in place of lt Internet IP Address gt and enter the Administration Port number in place of the word port Use https A Secure Sockets Layer SSL connection enhances the s
54. lem is solved 1462 1400 1362 1300 18 1 need to use port triggering Port triggering looks at the outgoing port services used and will trigger the Router to open a specific port depending on which port an Internet application uses Follow these steps A To connect to the Router go to the web browser and enter http 192 168 15 1 or the IP address of the Router Enter the password if asked The default password is admin Click the Applications amp Gaming gt Port Trigger tab Enter any name you want to use for the Application Name Enter the Start and End Ports of the Triggered Port Range Check with your Internet application provider for more information on which outgoing port services it is using Enter the Start and End Ports of the Forwarded Port Range Check with your Internet application provider for more information on which incoming port services are required by the Internet application G Check the Enable option for the port services you want to use mO m When you have completed the configuration click the Save Settings button 19 When I enter a URL or IP address get a time out error or am prompted to retry Go through this checklist until your problem is solved e Check if other PCs work If they do ensure that your workstation s IP settings are correct IP Address Subnet Mask Default Gateway and DNS Restart the computer that is having a problem e Ifthe PCs are configured correctly but still
55. ll use for MAC address cloning or MAC filtering The example shows the Ethernet adapter s IP address as 192 168 1 100 Your computer may show something different Note The MAC address is also called the Adapter Address Windows 2000 or XP Instructions 1 Click Start and Run In the Open field enter cmd Press the Enter key or click the OK button 2 At the command prompt enter ipconfig all Then press the Enter key E o linksys LNE100TX Fast Etherne x r Ethemet Adapter Information LNE100TX Fast Ethernet Ad IP Address 192 168 1 45 Subnet Mask 255 255 255 0 Default Gateway 192 168 1 254 Release Renew Release All Renew Al Mote Info gt gt Figure B 1 IP Configuration Screen CE lolx Ethemet Adapter Information j Linksys LNETOOTX Fast Ethernet z Adapter Address lt 00 0000 00 0000 gt IPAddress 192168 1 100 Subnet Mask 255 2552550 Deea LE CE eee R Release AIl More Info gt gt Figure B 2 MAC Address Adapter Address 53 3 Write down the Physical Address as shown on your computer screen it is the MAC address for your Ethernet adapter This appears as a series of numbers and letters The MAC address Physical Address is what you will use for MAC address cloning or MAC filtering Note The MAC address is also called the Physical Address The example shows the Ethernet adapter s IP address as 192 168 1 100 Your computer ma
56. lock access to any WAN proxy servers Click the checkbox to enable proxy filtering Filter Cookies A cookie is data stored on your PC and used by Internet sites when you interact with them Click the checkbox to enable cookie filtering Filter J ava Applets ava is a programming language for websites If you deny J ava Applets you run the risk of not having access to Internet sites created using this programming language Click the checkbox to enable J ava Applet filtering Filter ActiveX ActiveX is a programming language for websites If you deny Activex you run the risk of not having access to Internet sites created using this programming language Click the checkbox to enable Activex filtering Filter Multicast Multicasting allows for multiple transmissions to specific recipients at the same time If multicasting is permitted then the Router will allow IP multicast packets to be forwarded to the appropriate computers Click the checkbox to enable multicast filtering Block WAN Requests Block Anonymous Internet Requests This keeps your network from being pinged or detected and reinforces your network security by hiding your network ports so it is more difficult for intruders to work their way into your network Click the checkbox to block anonymous Internet requests This feature is enabled by default When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel
57. mp Gaming Tab Port Trigger Figure 5 16 Applications amp Gaming Tab UPnP Forward Figure 5 17 Applications amp Gaming Tab DMZ Figure 5 18 Administration Tab Figure 5 19 Administration Tab Figure 5 20 Administration Tab Figure 5 21 Ping Test Figure 5 22 Traceroute Test Figure 5 23 Administration Tab Figure 5 24 Administration Tab Figure 5 25 Administration Tab Figure 5 26 Status Tab Router Management Log Diagnostics Factory Defaults Backup and Restore Reboot Figure 5 27 Status Tab Local Network Figure 5 28 DHCP Clients Table Figure 5 29 Status Tab Voice Figure 6 1 Website for AT amp T CallVantage Service Figure B 1 IP Configuration Screen Figure B 2 MAC Address Adapter Address Figure B 3 MAC Address Physical Address Figure B 4 Access Restrictions MAC and IP Addresses Figure B 5 MAC Address Clone Chapter 1 Introduction Welcome Thank you for choosing the Broadband Router with 2 Phone Ports This Router will allow your computers to share a high speed Internet connection as well as resources including files and printers And after you have set up your Internet phone service you will be able to make phone or fax calls using your Internet connection How does the Router do all of this By connecting your computers and peripherals including phones or fax machines to the Router and connecting the Router to your cable or DSL modem then the Router can direct and contr
58. mp T CallVantages Service Overview After you have installed and configured the Router for your Internet connection you can sign up for Internet phone service or activate your account Follow these instructions to access the AT amp T website Instructions 1 Launch Internet Explorer and enter http www att com linksys in the Address field Then press the Enter key 2 You will see two choices Select the one that applies to you If you already have an Internet phone service account with AT amp T then select I signed up for service and want to activate If you do not have an Internet phone service account with AT amp T then select have my Linksys Router and want to sign up for service 3 Follow the on screen instructions When you have activated your Internet phone service the Phone 1 LED on the Router s front panel will light up When you pick up the phone you will hear a dial tone Then you will be able to make Internet phone calls If you experience any problems refer to Appendix A Troubleshooting for more information Address a http www att comylinksys Figure 6 1 Website for AT amp T CallVantage Service 38 Appendix A Troubleshooting This appendix provides solutions to problems that may occur during the installation and operation of the Router Read the description below to solve your problems If you can t find an answer here check the AT amp T website at http www usa att com callvantage fa
59. ndo your changes For help information click Help LINKSYS A Disian of Osco Systane ine Security Figure 5 11 Security Tab VPN Passthrough vpn a security measure to protect data as it leaves one network and goes to another over the Internet ipsec a VPN protocol used to implement secure exchange of packets at the IP layer pptp a VPN protocol that allows the Point to Point Protocol PPP to be tunneled through an IP network This protocol is also used as a type of broadband connection in Europe 21 Broadband Router with 2 Phone Ports The Access Restrictions Tab Internet Access The Internet Access screen allows you to block or allow specific kinds of Internet usage and traffic such as Internet access designated services and websites during specific days and times NOTE If you have an AT amp T CallVantage Service account contact AT amp T technical support at A 1 866 596 8464 before you enable an Internet Access Policy Internet Access Internet Access Policy Access can be managed by a policy Use the settings on this screen to establish an access policy after the Save Settings button is clicked Selecting a policy from the drop down menu will display that policy s settings To delete a policy select that policy s number and click the Delete button To view all the policies click the Summary button Status Policies are disabled by default To enable a policy select the policy number from the drop
60. ne wall jack Make sure you only connect home or office may be damaged NOTE Make sure your telephone is set to its tone setting not pulse 4 Connect one end of an Ethernet network cable to one of the numbered ports on the back of the Router Connect the other end to an Ethernet port on a network device e g a PC print server or switch Repeat this step to connect more PCs or other network devices to the Router 5 Power on the broadband modem 6 Connect the included power adapter to the Router s Power port and then plug the power adapter into an electrical outlet The Power LED on the front panel will light up as soon as the Router powers on 7 Power on your PC s Proceed to Chapter 5 Configuring the Router Figure 4 1 Connect the Broadband Modem Figure 4 2 Connect a Telephone Figure 4 4 Connect the Power Broadband Router with 2 Phone Ports Connecting One Router to Another If you already have a router for example a wireless router and want to add the Broadband Router with 2 Phone Ports then you should use the Broadband Router with 2 Phone Ports as your primary router so the Internet phone calls will be routed properly For example the following connection diagram shows the Broadband Router with 2 Phone Ports connected to a wireless router phone and desktop PCs Internet Broadband Modem A Broadband Router with 2 Phone Ports Wireless Router Figure 4 5 Router Connected to Anoth
61. need to do Force your Ethernet adapter to 10M bps or half duplex mode and turn off the Auto negotiate feature of your Ethernet adapter as a temporary measure Please look at the Network Control Panel in your Ethernet adapter s Advanced Properties tab Make sure that your proxy setting is disabled in the browser Check our website at www linksys com for more information If all else fails in the installation what can do Reset the Router by holding down the Reset button for thirty seconds Then reset your cable or DSL modem by powering the unit off and then on Will the Router function in a Macintosh environment Yes but the Router s setup pages are accessible only through Internet Explorer 5 0 or Netscape Navigator 5 0 or higher for Macintosh am not able to get the web configuration screen for the Router What can do You may have to remove the proxy settings on your Internet browser e g Netscape Navigator or Internet Explorer Or remove the dial up settings on your browser Check with your browser documentation and make sure that your browser is set to connect directly and that any dial up is disabled Make sure that your browser is set to connect directly and that any dial up is disabled For Internet Explorer click Tools Internet Options and then the Connection tab Make sure that Internet Explorer is set to Never dial a connection For Netscape Navigator click Edit Preferences Advanced and Proxy Make sure that Ne
62. net traffic Click the Refresh button to update the log Outgoing Log Click the Outgoing Log button to view a temporary log of all the URLs and IP addresses of Internet sites that users on your network have accessed The LAN IP address Destination URL IP and Service Port Number for each site are listed Click the Refresh button to update the log When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes For help information click Help L A Division of Cinco Systema Inc Administration Figure 5 19 Administration Tab Log 31 Broadband Router with 2 Phone Ports The Administration Tab Diagnostics The diagnostic tests Ping and Traceroute allow you to check the connections of your network components Ping Test The Ping test will check the status of a connection Click the Ping button to open the Ping Test screen Enter the IP address or domain name of the PC whose connection you wish to test and how many times you wish to test it 5 10 or unlimited Then click the Ping button To stop the test click the Stop button Click the Clear Log button to clear the screen Click the Close button to return to the Diagnostics screen Traceroute Test To test the performance of a connection click the Traceroute button Enter the IP address or domain name of the PC whose connection you wish to test and click the Traceroute butt
63. network junction or connection point typically a computer or work station Packet A unit of data sent over a network 58 Ping Packet INternet Groper An Internet utility used to determine whether a particular IP address is online POP3 Post Office Protocol 3 A standard mail server commonly used on the Internet Port The connection point on a computer or networking device used for plugging in cables or adapters Power over Ethernet PoE A technology enabling an Ethernet network cable to deliver both data and power PPPoE Point to Point Protocol over Ethernet A type of broadband connection that provides authentication username and password in addition to data transport PPTP Point to Point Tunneling Protocol A VPN protocol that allows the Point to Point Protocol PPP to be tunneled through an IP network This protocol is also used as a type of broadband connection in Europe Preamble Part of the wireless signal that synchronizes network traffic RJ 45 Registered J ack 45 An Ethernet connector that holds up to eight wires Router A networking device that connects multiple networks together RTS Request To Send A networking method of coordinating large packets through the RTS Threshold setting Server Any computer whose function in a network is to provide user access to files printing communications and other services SMTP Simple Mail Transfer Protocol The standard e mail protocol on the Interne
64. ng www linksys com and press the Enter key e If you get a reply the computer is connected to the Internet If you cannot open a webpage try the ping command from a different computer to verify that your original computer is not the cause of the problem e If you do NOT get a reply there may be a problem with the connection Try the ping command from a different computer to verify that your original computer is not the cause of the problem Lam not getting an IP address on the Internet with my Internet connection A Refer to Problem 6 want to test my Internet connection to verify that you have connectivity B If you need to register the MAC address of your Ethernet adapter with your ISP please see Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter If you need to clone the MAC address of your Ethernet adapter onto the Router see the MAC Address Clone section of Chapter 5 Configuring the Router for details Make sure you are using the right Internet settings Contact your ISP to see if your Internet connection type is DHCP Static IP Address or PPPoE commonly used by DSL consumers Please refer to the Basic Setup section of Chapter 5 Configuring the Router for details on Internet Connection Type settings Make sure you use the right cable Check to see if the Internet LED is solidly lit Make sure the cable connecting from your cable or DSL modem is connected to the Router
65. ntly Asked Questions Appendix B Finding the MAC Address and IP Address for Your Ethernet Adapter Windows 98 or Me Instructions Windows 2000 or XP Instructions For the Router s Web based Utility Appendix C Windows Help Appendix D Glossary Appendix E Specifications Appendix F Warranty Information Appendix G Regulatory Information Appendix H Contact Information AT amp T Linksys 35 36 37 38 38 38 39 39 49 53 53 53 54 55 56 61 63 64 65 65 65 List of Figures Figure 3 1 Figure 3 2 Figure 4 1 Figure 4 2 Figure 4 3 Figure 4 4 Figure 4 5 Figure 4 6 Figure 4 7 Figure 4 8 Figure 4 9 Figure 5 1 Figure 5 2 Figure 5 3 Figure 5 4 Figure 5 5 Figure 5 6 Figure 5 7 Figure 5 8 Figure 5 9 Back Panel Front Panel Connect the Broadband Modem Connect a Telephone Connect a PC Connect the Power Router Connected to Another Router Connect the Broadband Modem Connect a Telephone Connect the Other Router Connect the Power Router s IP Address Router Login Setup Tab Basic Setup Automatic Configuration DHCP Static IP PPPoE PPTP Setup Tab DDNS DynDNS org Setup Tab DDNS TZO com Setup Tab MAC Address Clone Figure 5 10 Security Tab Firewall Figure 5 11 Security Tab VPN Passthrough Figure 5 12 Access Restrictions Tab Internet Access Figure 5 13 List of PCs Figure 5 14 Applications amp Gaming Tab Port Range Forward Figure 5 15 Applications a
66. o undo your changes For help information click Help NOTE To test your settings connect to the Internet now 17 Broadband Router with 2 Phone Ports The Setup Tab DDNS The Router offers a Dynamic Domain Name System DDNS feature DDNS lets you assign a fixed host and domain name to a dynamic Internet IP address It is useful when you are hosting your own website FTP server or other server behind the Router ddns allows the hosting of a website FTP server or e mail server with a fixed domain name e g www xyz com and a dynamic IP address Before you can use this feature you need to sign up for DDNS service at one of two DDNS service providers DynDNS org or TZO com If you do not want to use this feature keep the default setting Disable DDNS DDNS Service If your DDNS service is provided by DynDNS org then select DynDNS org from the drop down menu If your DDNS service is provided by TZO then select TZO com The features available on the DDNS screen will vary depending on which DDNS service provider you use DynDNS org User Name Password and Host Name Enter the User Name Password and Host Name of the account you set up with DynDNS org Internet IP Address The Router s current Internet IP Address is displayed here Because it is dynamic it will change Figure 5 7 Setup Tab DDNS DynDNS org Status The status of the DDNS service connection is displayed here When you have finished making c
67. ol communications for your network But what does all of this mean Networks are useful tools for sharing Internet access and computer resources Multiple computers can share Internet access so you don t need more than one high speed Internet connection With Internet phone service your Internet access can now be shared by your phones or fax machines as well You will be able to make phone calls using the account you set up with AT amp T even while you re surfing the Internet Plus you can access one printer from different computers and access data located on another computer s hard drive Networks are even used for playing multiplayer video games So networks not only are useful in homes and offices but also can be fun PCs on a wired network create a LAN or Local Area Network They are connected with Ethernet cables which is why the network is called wired To create your network install and set up the Router To guide you through the process Linksys strongly recommends that you run the Setup Wizard on the Setup CD ROM If you prefer to manually set up the Router use the instructions in the Quick Installation or this User Guide to help you These instructions should be all you need to get the most out of the Router http www att com linksys after you have installed and configured the Router Refer to NOTE If you want to sign up for Internet phone service or activate your account visit Chapter 6 Signing up for AT amp
68. on To stop the test click the Stop button Click the Clear Log button to clear the screen Click the Close button to return to the Diagnostics screen Chapter 5 Configuring the Router The Administration Tab Diagnostics Li A Disian of Osco Systema me Administration Broadband Router With 2 Phone Ponts Ping Test IP Address or Domain Name Ping Number of times to Ping 5 Sep _Geertog Goss Figure 5 21 Ping Test Traceroute Test Microsolt Internet Explorer provided by Cisco Sisters lie Traceroute Test IP Address or Domain Name Trecercute S cen cone Figure 5 22 Traceroute Test 32 1d Router with 2 Phone Ports The Administration Tab Factory Defaults The Factory Defaults screen allows you to restore the Router s configuration to its factory default settings Factory Defaults Restore Factory Defaults To clear all of the Router s settings and reset them to its factory defaults click the Yes radio button After you have clicked the Yes radio button click the Save Settings button to restore the Router to its factory defaults or click the Cancel Changes button to undo your change For help information click Help exhausted all other troubleshooting measures Once the Router is reset you will have to re enter all of your configuration settings However if you have an active Internet phone service account the Router will automatically download its Internet phone service
69. on like this Figure 0 1 Sample Figure Description Figure numbers and descriptions can also be found in the List of Figures section RT41P2 AT UG 40901A J L Table of Contents Chapter 1 Introduction Welcome What s in this Guide Chapter 2 Networking Basics An Introduction to Local Area Networks The Use of IP Addresses Chapter 3 Getting to Know the Router The Back Panel The Front Panel Chapter 4 Connecting the Router Overview Connecting the Router to Your Broadband Modem Connecting One Router to Another Chapter 5 Configuring the Router Overview How to Access the Web based Utility The Setup Tab Basic Setup The Setup Tab DDNS The Setup Tab MAC Address Clone The Security Tab Firewall The Security Tab VPN The Access Restrictions Tab Internet Access The Applications amp Gaming Tab Port Range Forward The Applications amp Gaming Tab Port Trigger The Applications amp Gaming Tab UPnP Forward The Applications amp Gaming Tab DMZ The Administration Tab Management The Administration Tab Log The Administration Tab Diagnostics The Administration Tab Factory Defaults The Administration Tab Backup and Restore The Administration Tab Reboot W o o OANA OBB BNP FF The Status Tab Router The Status Tab Local Network The Status Tab Voice Chapter 6 Signing up for AT amp T CallVantages Service Overview Instructions Appendix A Troubleshooting Common Problems and Solutions Freque
70. on the Internet Usenet newsreaders support the NNTP protocol SNMP Simple Network Management Protocol A widely used network monitoring and control protocol Data is passed from SNMP agents which are hardware and or software processes reporting activity in each network device hub router bridge etc to the workstation console used to oversee the network The agents return information contained in a MIB Management Information Base which is a data structure that defines what is obtainable from the device and what can be controlled turned off on etc Ext Port Enter the number of the external port used by the server in the Ext Port column Check with the Internet application documentation for more information TCP or UDP Select the protocol UDP or TCP for each application You cannot select both protocols Int Port Enter the number of the internal port used by the server in the Int Port column Check with the Internet application software documentation for more information IP Address Enter the IP address of the server that you want the Internet users to be able to access To find the IP address go to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter Enable Check the Enable box to enable the application you have defined UPnP Forwarding for a specific application will not function if its Enable box is left unchecked This is disabled unchecked by default When you have finished making chan
71. pply Enter MAC Address of the PCs in this format nono your changes or Cancel Changes to cancel your changes Click the Close button to return to the Internet a ie E Access screen Maceo DIATE acon OESE MACO4 00 00 0000 00 00 MACO8 00 00 00 00 00 00 5 Click the appropriate option Deny or Allow depending on whether you want to block or allow Internet access Entar the IP Address ofthe PCs for the PCs you listed on the List of PCs screen pe mnie renes ez 19216815 0 wes 192168 15 0 j g i ee ta IP03 19216815 0 IP06 192 168 15 o 6 Decide which days and what times you want this policy to be enforced Select the individual days during aaa which the policy will be in effect or select Everyday Then enter a range of hours and minutes during which IP Range 01 192 168 15 T 0 IP Range a2 192168 15 07 107 the policy will be in effect or select 24 Hours Save Settings Cancel Changes Close 7 Inthe Blocked Services section you can filter access to various services accessed over the Internet such as FTP or telnet Select the service from the drop down menu listing your choice of services Then click the gt gt Figure 5 13 List of PCs button to add the service to the Blocked services list You can block up to two services per policy If you want to remove a service from the Blocked services list then select it and click the lt lt button If the service you want is not available then you can add a serv
72. provides authentication username and password in addition to data transport 14 PPTP Point to Point Tunneling Protocol PPTP is a service that applies to connections in Europe and Israel only Internet IP Address This is the IP address that the Router has when seen from the Internet Your ISP will provide you with the IP Address you need to specify here Subnet Mask This is the Router s Subnet Mask as seen by external users on the Internet including your ISP Your ISP will provide you with the Subnet Mask Gateway Your ISP will provide you with the Default Gateway Address User Name and Password Enter the User Name and Password provided by your ISP Connect on Demand and Max Idle Time You can configure the Router to cut the Internet connection after it has been inactive for a specific period of time Max Idle Time If your Internet connection has been terminated due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand click the radio button If you want your Internet connection to remain on at all times enter 0 in the Max Idle Time field Otherwise enter the number of minutes you want to have elapsed before your Internet access disconnects Keep Alive and Redial Period This option keeps your Internet access connected indefinitely even when it sits idle If you select this option the Rou
73. qs index jsp or the Linksys website at www linksys com Common Problems and Solutions 1 don t hear a dial tone and the Phone 1 LED is not lit Go through this checklist until your problem is solved Make sure the telephone is plugged into the Phone 1 port Disconnect and re connect the RJ 11 telephone cable between the Router and telephone Make sure your telephone is set to its tone setting not pulse Make sure your network has an active Internet connection Try to access the Internet and check to see if the Router s Internet LED is lit If you do not have a connection power off your network devices including the Router and cable DSL modem Wait 30 seconds and power on the cable DSL modem first Then power on the Router and other network devices Verify your account information and confirm that the phone line is registered with AT amp T If none of the above works contact AT amp T at 1 866 596 8464 2 The Status Voice screen of the Web based Utility says that the registration for my Internet phone line has failed Go through this checklist until your problem is solved Make sure your network has an active Internet connection Try to access the Internet and check to see if the Router s Internet LED is lit If you do not have a connection power off your network devices including the Router and cable DSL modem Wait 30 seconds and power on the cable DSL modem first Then power on the Router and other network devices
74. ry the Router will automatically update its configuration You can make Internet phone calls only if the Router has the most recent configuration Userl Status Registration Status This indicates whether or not this phone line is registered with AT amp T CallVantage Service If the phone line is not registered and you want Internet phone service then refer to Chapter 6 Signing up for AT amp T CallVantages Service If the registration status indicates that the registration has failed then refer to Appendix A Troubleshooting Call1 Status The status of the active phone call is shown here Call2 Status If you are using call waiting the status of the incoming phone call is shown here User2 Status Registration Status This indicates whether or not this phone line is registered with AT amp T CallVantage Service If the phone line is not registered and you want Internet phone service then refer to Chapter 6 Signing up for AT amp T CallVantages Service If the registration status indicates that the registration has failed then refer to Appendix A Troubleshooting Calll Status The status of the active phone call is shown here Call2 Status If you are using call waiting the status of the incoming phone call is shown here Click the Refresh button to update the on screen information For help information click Help the Router Figure 5 29 Status Tab Voice 37 Chapter 6 Signing up for AT a
75. s recommended to use the value 1492 By default MTU is set at 1500 when disabled Network Setup The Network Setup section allows you to change the Router s local network settings Router IP The values for the Router s Local IP Address and Subnet Mask are shown here In most cases keeping the default values will work Local IP Address The default value is 192 168 15 1 Subnet Mask The default value is 255 255 255 0 Network Address Server Settings DHCP These settings allow you to configure the Router s Dynamic Host Configuration Protocol DHCP server function The Router can be used as a DHCP server for your network A DHCP server automatically assigns an IP address to each computer on your network Unless you already have one it is highly recommended that you leave the Router enabled as a DHCP server DHCP Server DHCP is enabled by factory default If you already have a DHCP server on your network set the Router s DHCP option to Disable If you disable DHCP remember to assign a static IP address to the Router Starting IP Address Enter a value for the DHCP server to start with when issuing IP addresses Because the default IP address for the Router is 192 168 15 1 the Start IP Address must be 192 168 15 2 or greater but smaller than 192 168 15 254 The default Start IP Address is 192 168 15 100 Maximum Number of DHCP Users Optional Enter the maximum number of PCs that you want the DHCP server to assign IP addresse
76. s may not always work so you may need to re establish connection periodically A To connect to the Router go to the web browser and enter http 192 168 15 1 or the IP address of the Router B Enter the password if asked The default password is admin C On the Basic Setup tab select the option Keep Alive and set the Redial Period option at 20 seconds 41 D Click the Save Settings button E Click the Status tab and click the Connect button F You may see the login status display as Connecting Press the F5 key to refresh the screen until you see the login status display as Connected If the connection is lost again follow steps E and F to re establish connection 17 1 can t access my email web or VPN or am getting corrupted data from the Internet The Maximum Transmission Unit MTU setting may need to be adjusted By default the MTU is set at 1500 For most DSL users it is strongly recommended to use MTU 1492 If you are having some difficulties perform the following steps Open the web browser and enter http 192 168 15 1 or the IP address of the Router Enter the password if asked The default password is admin On the Basic Setup tab look for the MTU option and select Manual In the Size field enter 1492 Click the Save Settings button to continue gow If your difficulties continue change the Size to different values Try this list of values one value at a time in this order until your prob
77. s to This number cannot be greater than 253 The default is 50 Client Lease Time The Client Lease Time is the amount of time a network user will be allowed connection to the Router with their current dynamic IP address Enter the amount of time in minutes that the user will be leased dynamic ip address a temporary IP this dynamic IP address After the dynamic IP address has expired the user will be automatically assigned a new address assigned by a DHCP server dynamic IP address The default is 0 minutes which means one day Static DNS 1 2 The Domain Name System DNS is how the Internet translates domain or website names into Internet addresses or URLs Your ISP will provide you with at least one DNS Server IP Address You can enter up to two DNS Server IP Addresses here The Router will use these for quicker access to functioning DNS servers 16 WINS The Windows Internet Naming Service WINS converts NetBIOS names to IP addresses If you use a WINS server enter that server s IP address here Otherwise leave this field blank Time Setting Time Zone Select the time zone in which your network functions from this pull down menu If you want the Router to automatically adjust its clock for daylight savings click the checkbox next to Automatically adjust clock for daylight saving changes When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button t
78. t SNMP Simple Network Management Protocol A widely used network monitoring and control protocol Software Instructions for the computer A series of instructions that performs a particular task is called a program SOHO Small Office Home Office Market segment of professionals who work at home or in small offices SPI Stateful Packet Inspection Firewall A technology that inspects incoming packets of information before allowing them to enter the network Static IP Address A fixed address assigned to a computer or device that is connected to a network Static Routing Forwarding data in a network via a fixed path Subnet Mask An address code that determines the size of the network 59 Switch 1 A data switch that connects computing devices to host computers allowing a large number of devices to share a limited number of ports 2 A device for making breaking or changing the connections in an electrical circuit TCP Transmission Control Protocol A network protocol for transmitting data that requires acknowledgement from the recipient of data sent TCP IP Transmission Control Protocol Internet Protocol A set of instructions PCs use to communicate over a network Telnet A user command and TCP IP protocol used for accessing remote PCs TFTP Trivial File Transfer Protocol A version of the TCP IP FTP protocol that has no directory or password capability Throughput The amount of data moved succ
79. t to an outlet other than the receiver s Consult a dealer or an experienced radio TV technician for assistance INDUSTRY CANADA CANADA This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme a la norme NMB 003 du Canada EC DECLARATION OF CONFORMITY EUROPE In compliance with the EMC Directive 89 336 EEC Low Voltage Directive 73 23 EEC and Amendment Directive 93 68 EEC this product meets the requirements of the following standards EN55022 Emission EN55024 Immunity SAFETY NOTICES Caution To reduce the risk of fire use only No 26 AWG or larger telecommunication line cord Do not use this product near water for example in a wet basement or near a swimming pool Avoid using this product during an electrical storm There may be a remote risk of electric shock from lightning 64 Appendix H Contact Information AT amp T Need to contact AT amp T If you have technical installation repair or billing questions you can call AT amp T at To e mail your questions visit AT amp T online to access your account at After you log in click Help Then click EMAIL AN AGENT in the CONTACT US section Linksys Need to contact Linksys Visit us online for information on the latest products and updates to your existing products at Can t find information about a product you want to buy on the web Do you want to know more about networking with Linksys products
80. tatus of the connection is displayed and there is a Connect button to click if there is no connection and you want to establish an Internet connection IP Address The Router s Internet IP Address is displayed here Subnet Mask and Default Gateway The Router s Subnet Mask and Default Gateway address are shown here DNS 1 2 Shown here are the DNS Domain Name System IP addresses currently used by the Router DHCP Release Available for a DHCP connection click the DHCP Release button to release the current IP address of the device connected to the Router s Internet port DHCP Renew Available for a DHCP connection click the DHCP Renew button to replace the current IP address of the device connected to the Router s Internet port with a new IP address Click the Refresh button to update the on screen information For help information click Help 35 Broadband Router with 2 Phone Ports The Status Tab Local Network The Local Network screen displays information about the local network Local Network MAC Address The MAC Address of the Router s LAN local area network interface is displayed here IP Address The Router s local IP Address is shown here Subnet Mask The Router s Subnet Mask is shown here DHCP Server The status of the DHCP server is displayed here Start IP Address This is the starting IP address of the range assigned by the Router End IP Address This is the last IP address of the range ass
81. tches There are two ways to reset the Router to its factory default settings Either press the Reset button for approximately five seconds or restore the defaults from the Administration tab Factory Defaults of the Router s Web based Utility The Power port is where you will connect the power adapter A IMPORTANT If you reset the Router all of your settings including Internet connection Internet phone service and security settings will be deleted and replaced with the factory defaults Do not reset the Router if you want to retain these settings If you have an active Internet phone service account and reset the Router then the Router will automatically download its Internet phone service settings once it is connected to the Internet again Broadband Router with 2 Phone Ports The Front Panel The Router s LEDs which inform you about network activities are located on the front panel Broadband Router With 2 Phone Pacts Figure 3 2 Front Panel Power Green The Power LED lights up when the Router is powered on If the LED is flashing the Router is booting up or running a system self test Ethernet 1 4 Green The Ethernet LED serves two purposes If the LED is solidly lit the Router is connected to a device through the corresponding port Ethernet 1 2 3 or 4 If the LED is flashing the Router is sending or receiving data over that port Phone 1 2 Green The Phone LED is solidly lit when a telephone or
82. ted Enter the Host and Domain names e g J ohn for Host and home for Domain Enter the DNS entry provided by your ISP If your ISP has not provided the DNS IP address contact your ISP to get that information or go to its website for the information Click the OK button in the TCP IP properties window and click Close or the OK button for the Network window Restart the computer when asked 40 For Windows 2000 A Click Start Settings and Control Panel Double click Network and Dial Up Connections B Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option C In the Components checked are used by this connection box highlight Internet Protocol TCP IP and click the Properties button Select Use the following IP address option D Enter a unique IP address that is not used by any other computer on the network connected to the Router You can only use an IP address in the ranges 192 168 15 2 to 192 168 15 99 and 192 168 15 151 to 192 168 15 254 E Enter the Subnet Mask 255 255 255 0 F Enter the Default Gateway 192 168 15 1 Router s default IP address G Toward the bottom of the window select Use the following DNS server addresses and enter the Preferred DNS server and Alternative DNS server provided by your ISP Contact your ISP or go on its website to find the information H Click the OK button in the Internet Protocol TCP IP Properties win
83. ter will periodically check your Internet connection If the connection is down then the Router will automatically re establish the connection To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds When you are finished click the Save Settings button Then click the Status tab and click the Connect button to start the connection Optional Settings Some of these settings may be required by your ISP Verify with your ISP before making any changes Router Name Enter a name for this Router Host Name and Domain Name These fields allow you to supply a host and domain name for the Router Some ISPs require these names as identification You may have to check with your ISP to see if your broadband Internet service has been configured with a host and domain name In most cases leaving these fields blank will work MTU The MTU Maximum Transmission Unit setting specifies the largest packet size permitted for network transmission The default is Auto If you want to manually enter a value select Manual and enter the value PPTP v Internet IP Address fo fo fo fo Subnet Mask 255 255 255 o Gateway fo fo fo fo User Name a Password OO C Connect on Demand Max Idle Time 5 Min Keep Alive Redial Period 30 Figure 5 6 PPTP packet a unit of data sent over a network 15 desired It is recommended that you leave this value in the 1200 to 1500 range For most DSL users it i
84. tion and what is it used for Network Address Translation NAT translates multiple IP addresses on the private LAN to one public address that is sent out to the Internet This adds a level of security since the address of a PC connected to the private LAN is never transmitted on the Internet Furthermore NAT allows the Router to be used with low cost Internet accounts such as DSL or cable modems when only one TCP IP address is provided by the ISP The user may have many private addresses behind this single address provided by the ISP Does the Router support any operating system other than Windows 98 Millennium 2000 or XP Yes but Linksys does not at this time provide technical support for setup configuration or troubleshooting of any non Windows operating systems Does the Router support ICQ send file Yes with the following fix click ICQ menu gt preference gt connections tab gt and check am behind a firewall or proxy Then set the firewall time out to 80 seconds in the firewall setting The Internet user can then send a file to a user behind the Router set up an Unreal Tournament Server but others on the LAN cannot join What do need to do If you have a dedicated Unreal Tournament server running you need to create a static IP for each of the LAN computers and forward ports 7777 7778 7779 7780 7781 and 27900 to the IP address of the server You can also use a port forwarding range of 7777 to 27900 If you want to
85. tscape Navigator is set to Direct connection to the Internet 51 What is DMZ Hosting Demilitarized Zone DMZ allows one IP address computer to be exposed to the Internet Some applications require multiple TCP IP ports to be open It is recommended that you set your computer with a static IP if you want to use DMZ Hosting To get the LAN IP address see Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter If DMZ Hosting is used does the exposed user share the public IP with the Router No Does the Router pass PPTP packets or actively route PPTP sessions The Router allows PPTP packets to pass through Is the Router cross platform compatible Any platform that supports Ethernet and TCP IP is compatible with the Router How many ports can be simultaneously forwarded Theoretically the Router can establish 520 sessions at the same time but you can only forward 10 ranges of ports Does the Router replace a modem Is there a cable or DSL modem in the Router No this version of the Router must work in conjunction with a cable or DSL modem Which modems are compatible with the Router The Router is compatible with virtually any cable or DSL modem that supports Ethernet What is the maximum number of VPN sessions allowed by the Router The maximum number depends on many factors At least one IPSec session will work through the Router however simultaneous IPSec sessions may be possible depending on th
86. tworks The Router s Network Address Translation NAT technology protects your network of PCs so users on the Internet cannot see your PCs This is how your LAN remains private The Router protects your network by inspecting the first packet coming in through the Internet port before delivery to the final destination on one of the Ethernet ports The Router inspects Internet port services like the web server ftp server or other Internet applications and if allowed it will forward the packet to the appropriate PC on the LAN side The Use of IP Addresses IP stands for Internet Protocol Every device in an IP based network including PCs print servers and routers requires an IP address to identify its location or address on the network This applies to both the Internet and LAN connections There are two ways of assigning IP addresses to your network devices A static IP address is a fixed IP address that you assign manually to a PC or other device on the network Since a static IP address remains valid until you disable it static IP addressing ensures that the device assigned it will always have that same IP address until you change it Static IP addresses are commonly used with network devices such as server PCs or print servers If you use the Router to share your cable or DSL Internet connection contact your ISP to find out if they have assigned a static IP address to your account If so you will need that static IP address w
87. use the UT Server Admin forward another port 8080 usually works well but is used for remote admin You may have to disable this and then in the UWeb WebServer section of the server ini file set the ListenPort to 8080 to match the mapped port above and ServerName to the IP assigned to the Router from your ISP 50 Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address It depends on which network game or what kind of game server you are using For example Unreal Tournament supports multi login with one public IP How do get Half Life Team Fortress to work with the Router The default client port for Half Life is 27005 The computers on your LAN need to have clientport 2700x added to the HL shortcut command line the x would be 6 7 8 and on up This lets multiple computers connect to the same server One problem Version 1 0 1 6 won t let multiple computers with the same CD key connect at the same time even if on the same LAN not a problem with 1 0 1 3 As far as hosting games the HL server does not need to be in the DMZ J ust forward port 27015 to the local IP address of the server computer How can I block corrupted FTP downloads If you are experiencing corrupted files when you download a file with your FTP client try using another FTP program The web page hangs downloads are corrupt or nothing but junk characters are being displayed on the screen What do
88. y for the Internet connection the computer does not need any proxy settings to gain access Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN For Microsoft Internet Explorer 5 0 or higher Click Start Settings and Control Panel Double click Internet Options Click the Connections tab Click the LAN settings button and remove anything that is checked Click the OK button to go back to the previous screen Click the option Never dial a connection This will remove any dial up pop ups for PPPoE users MOODY For Netscape 4 7 or higher A Start Netscape Navigator and click Edit Preferences Advanced and Proxies B Make sure you have Direct connection to the Internet selected on this screen C Close all the windows to finish 15 To start over need to set the Router to factory default Hold the Reset button for up to 30 seconds and then release it This will return the password forwarding and other settings on the Router to the factory default settings In other words the Router will revert to its original factory configuration 16 My DSL service s PPPoE is always disconnecting PPPoE is not actually a dedicated or always on connection The DSL ISP can disconnect the service after a period of inactivity just like a normal phone dial up connection to the Internet There is a setup option to keep alive the connection Thi
89. y show something different For the Router s Web based Utility You can use MAC or IP addresses to designate computers for each Internet Access Policy you create To specify a computer enter its IP address or 12 digit MAC address For MAC address cloning enter the 12 digit MAC address in the User Defined Entry fields two digits per field For more details refer to Chapter 5 Configuring the Router List of PCs Enter MAC Address of the PCs in this format xxxxxxxxxxxx MACO1 00 00 00 00 00 00 MACOS 00 00 00 00 00 00 MACO2 d0 00 00 00 00 00 MACOS 00 00 00 00 00 00 MAC 03 oo 00 00 00 00 00 MAC 07 oo 00 00 00 00 00 MACO4 00 00 00 00 00 00 MACOS 00 00 00 00 00 00 Enter the IP Address of the PCs Pot 19216815 0 wos 19216815 0 IP02 19216815 0 woes 19216815 0 IP03 192 168 15 0 IP06 192 168 15 0 Enter the IP Range of the PCs IP Range 01 192168 15 0 0 IP Range 02 19216815 0 0 SaveSetings Cancel Changes Ciose zi Figure B 4 Access Restrictions MAC and IP Addresses Ferrers Versions 101 7 Broadband Router With 2 Phone Ports RTP Figure B 5 MAC Address Clone 54 Appendix C Windows Help Almost all networking products require Microsoft Windows Windows is the most used operating system in the world and comes with many features that help make networking easier These features can be accessed through Windows Help and are described in this appendix TCP IP

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