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Netgear WG102 User's Manual

1. Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Is WPA Perfect WPA is not without its vulnerabilities Specifically it is susceptible to denial of service DoS attacks If the access point receives two data packets that fail the message integrity code MIC within 60 seconds of each other then the network is under an active attack and as a result the access point employs counter measures which include disassociating each station using the access point This prevents an attacker from gleaning information about the encryption key and alerts administrators but it also causes users to lose network connectivity for 60 seconds More than anything else this may just prove that no single security tactic is completely invulnerable WPA is a definite step forward in WLAN security over WEP and has to be thought of as a single part of an end to end network security strategy Product Support for WPA Starting in August 2003 NETGEAR Inc wireless Wi Fi certified products will support the WPA standard NETGEAR Inc wireless products that had their Wi Fi certification approved before August 2003 will have one year to add WPA so as to maintain their Wi Fi certification WPA requires software changes to the following e Wireless access points e Wireless network adapters e Wireless client programs Supporting a Mixture of WPA and WEP Wireless Clients is Discouraged To support the gradual transition of WEP base
2. Reference Manual for the NETGEAR WG102 ProSafe 802 11g Wireless Access Point NETGEAR NETGEAR Inc 4500 Great America Parkway Santa Clara CA 95054 USA Phone 1 888 NETGEAR October 2004 October 2004 Technical Support Please register to obtain technical support Please retain your proof of purchase and warranty information To register your product get product support or obtain product information and product documentation go to http www NETGEAR com If you do not have access to the World Wide Web you may register your product by filling out the registration card and mailing it to NETGEAR customer service You will find technical support information at http www NETGEAR com through the customer service area If you want to contact technical support by telephone see the support information card for the correct telephone number for your country 2004 by NETGEAR Inc All rights reserved Trademarks NETGEAR is a registered trademark of NETGEAR INC Windows is a registered trademark of Microsoft Corporation Other brand and product names are trademarks or registered trademarks of their respective holders Information is subject to change without notice All rights reserved Statement of Conditions In the interest of improving internal design operational function and or reliability NETGEAR reserves the right to make changes to the products described in this document without notice NETGEAR does not assume
3. Web based configuration and status monitoring Maximum Clients Limited by the amount of wireless network traffic generated by each node typically 15 to 20 nodes Status LEDs Power Ethernet LAN Wireless LAN Test Power Adapter 12VDC 1A Electromagnetic Compliance FCC Part 15 Class B Environmental Specifications Operating temperature 0 to 50 C Operating humidity 5 95 non condensing Wireless Data Encoding 802 11b 1 and 2 Mbps Direct Sequence Spread Spectrum DSSS 802 11b 5 5 and 11 Mbps Complementary Code Keying CCK 802 11g All rates Orthogonal Frequency Division Multiplexing OFDM Maximum Computers Per Wireless Network Limited by the amount of wireless network traffic generated by each node Typically 30 70 nodes 802 11b and g Radio Data Rate 1 2 5 5 6 9 11 12 18 24 36 48 54 and 108 Mbps Auto rate capable 802 11b and g Operating Frequencies and Channels 2 412 2 462 GHz North America Channels 1 11 2 412 2 472 GHz Europe France and Japan Channels 1 13 2 457 2 462 GHz Spain Channel 11 Specifications A 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Parameter NETGEAR WG102 ProSafe 802 11g Wireless Access Point 802 11b and g Typical Maximum Transmit Power 802 11b mode 1 to 11Mbps 19 dBm 802 11g mode 6 to 24 Mbps 18 dBm 802 11g mode 36 48 54 M
4. Base or the Documentation link under the Web Support menu to view support information or the documentation for the wireless access point If you do not click Logout the wireless access point will wait 5 minutes after there is no activity before it automatically logs you out Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point e Click the Basic Settings link to view the Basic Settings menu Basic Settings Access Point Name netgear5062D2 IP Address DHCP Client Enable Disable IP Address 192 16s o 229 IP Subnet Mask 255 255 255 o Default Gateway 0 o o jo DNS Server Time Zone Select si o Adjust for Daylight Saving Time CurrentTime 2004 Jan 1 19 15 48 GMT Figure 3 4 Basic Settings menu e Configure the settings appropriate for your network Basic Installation and Configuration 3 8 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point b Click the Wireless Settings link in the Setup section of the main menu to view the Wireless Settings menu Wireless Settings Country Region Select x Wireless LAN Turn Radio On Wireless Network Name SSID NETGEAR Broadcast Wireless Network Name SSID yes ONo Operating Mode Auto 11g b 108Mbps Channel Frequency 11 2 462GHz v Data Rate Best w Output P
5. Equipment EN 300 328 V1 4 1 2003 04 Electromagnetic compatibility and Radio spectrum Matters ERM Wideband Transmission system data transmission equipment operating in the 2 4 Ghz ISM band and using spread spectrum modulation techniques Part 1 Technical characteristics and test conditions Part 2 Harmonized EN covering essential requirements under article 3 2 of the R amp TTE Directive EN 301 489 1 Aug 2002 EN 301 489 17 Aug 2002 Electromagnetic compatibility and radio spectrum matters ERM electromagnetic compatibility EMC standard for radio equipment and services Part 1 Common technical requirements Part 17 Specific conditions for Wideband Data and Hiperlan equipment EN 55 022 Declaration of Conformance This is to certify that the NETGEAR WG102 ProSafe 802 11g Wireless Access Point is shielded against the generation of radio interference in accordance with the application of Council Directive 89 336 EEC Article 4a Conformity is declared by the application of EN 55 022 Class B CISPR 22 October 2004 Compliance with the applicable regulations is dependent upon the use of shielded cables It is the responsibility of the user to procure the appropriate cables Requirements For Operation in the European Community Countries of Operation amp Conditions of Use in the European Community This device is intended to be operated in all countries of the European Community Requirements for indoor vs outdoor operation
6. The wireless station sometimes can be configured with the ESSID ANY This means the wireless station will try to associate with whichever access point has the stronger radio frequency RF signal providing that both the access point and wireless station use Open System authentication Authentication and WEP Data Encryption The absence of a physical connection between nodes makes the wireless links vulnerable to eavesdropping and information theft To provide a certain level of security the IEEE 802 11 standard has defined these two types of authentication methods e Open System With Open System authentication a wireless computer can join any network and receive any messages that are not encrypted B 2 Wireless Networking Basics October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point e Shared Key With Shared Key authentication only those PCs that possess the correct authentication key can join the network By default IEEE 802 11 wireless devices operate in an Open System network Wired Equivalent Privacy WEP data encryption is used when the wireless devices are configured to operate in Shared Key authentication mode 802 11 Authentication The 802 11 standard defines several services that govern how two 802 11 devices communicate The following events must occur before an 802 11 Station can communicate with an Ethernet network through an access point such as the one built in to the W
7. your area You should keep the Support Information card along with the original packing materials and use the packing materials to repack the WG102 if you need to return it for repair To qualify for product updates and product warranty registrations we encourage you to register on the NETGEAR Web site at http www NETGEAR com Introduction 2 5 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Hardware Description The NETGEAR WG102 ProSafe 802 11g Wireless Access Point front and rear hardware functions are described below The WG102 Access Point provides four status LEDs NEED PRODUCT PHOTO OR ILLUSTRATION Figure 2 1 WG102 front panel The following table explains the LED indicators Amber Flashing Green On Green Flashing LED DESCRIPTION PWR Power Indicator Off No power If this LED does not come on with the power adapter and cord correctly installed see Chapter 4 Troubleshooting On Power is on TEST Self Test Indicator Blink Indicates self test loading software or system fault if continues Note This LED may blink for a minute before going off LAN Ethernet link indicator Off No connection detected on the Ethernet link Amber On Indicates 10 Mbps Ethernet link detected Data is being transmitted or received on the 10 Mbps Ethernet link 100 Mbps Fast Ethernet link detected Data is being transmitted or received on the 100 Mbps Ethernet lin
8. 802 1X and Pre shared key Pre shared key is an authentication method that uses a statically configured pass phrase on both the stations and the access point This obviates the need for an authentication server which in many home and small office environments will not be available nor desirable Possible cipher suites include WEP TKIP and AES Advanced Encryption Standard We talk more about TKIP and AES when addressing data privacy below e Authentication EAP over 802 1X is used for authentication Mutual authentication is gained by choosing an EAP type supporting this feature and is required by WPA 802 1X port access control prevents full access to the network until authentication completes 802 1X EAPOL Key packets are used by WPA to distribute per session keys to those stations successfully authenticated The supplicant in the station uses the authentication and cipher suite information contained in the information elements to decide which authentication method and cipher suite to use For example if the access point is using the pre shared key method then the supplicant need not authenticate using full blown 802 1X Rather the supplicant must simply prove to the access point that it is in possession of the pre shared key If the supplicant detects that the service set does not contain a WPA information element then it knows it must use pre WPA 802 1X authentication and key management in order to access the network e Key management WPA
9. B 2 T troubleshooting 6 1 W WEP B 3 Wi Fi B 1 Wired Equivalent Privacy See WEP Wireless Ethernet B 1 Wireless Network Name 3 12 4 3 Wireless Security 3 4 Index
10. For each device the table shows the Station ID MAC address IP Address and Status whether the device is allowed to communicate with the wireless access point or not Note that if the wireless access point is rebooted the table data is lost until the wireless access point rediscovers the devices To force the wireless access point to look for associated devices click the Refresh button Note A wireless network can include multiple wireless access points all using the same network name SSID This enables extending the reach of the wireless network and allows users to roam from one access point to another providing seamless network connectivity Under these circumstances be aware that only the stations associated with this access point will be presented in the Available Station List Upgrading the Wireless Access Point Software Note When uploading software to the WG102 Access Point it is important not to C interrupt the Web browser by closing the window clicking a link or loading a new page If the browser is interrupted the upload may fail corrupt the software and render the WG102 completely inoperable You cannot perform the firmware upgrade from a workstation connected to the WG102 viaa wireless link The firmware upgrade must be performed via a workstation connected to the WG102 via the Ethernet LAN interface The software of the WG102 Access Point is stored in FLASH memory and can be upgraded as new software
11. On On by default you can also turn off the radio to disable access through this device This can be helpful for configuration network tuning or troubleshooting activities Wireless Network Name SSID The SSID is also known as the wireless network name Enter a value of up to 32 alphanumeric characters In a setting where there is more than one wireless network different wireless network names provide a means for separating the traffic Any device you want to participate in a particular wireless network will need to use the SSID The WG102 default SSID is NETGEAR A group of Wireless Stations and a single access point all using the same ID SSID form a Basic Service Set BSS Basic Installation and Configuration 3 12 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Using the same SSID is essential Devices with different SSIDs are unable to communicate with each other However some access points allow connections from wireless stations which have their SSID set to any or whose SSID is blank null A group of wireless stations and multiple access points all using the same ID ESSID form an Extended Service Set ESS Different access points within an ESS can use different channels To reduce interference it is recommended that adjacent access points should use different channels As wireless stations physically move through the area covered by an ESS they will auto
12. Protocol TKIP is required TKIP replaces WEP with a new encryption algorithm that is stronger than the WEP algorithm but that uses the calculation facilities present on existing wireless devices to perform encryption operations TKIP provides important data encryption enhancements including a per packet key mixing function a message integrity check MIC named Michael an extended initialization vector IV with sequencing rules and a re keying mechanism Through these enhancements TKIP addresses all of known WEP vulnerabilities Wireless Networking Basics B 9 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point How Does WPA Compare to IEEE 802 11i WPA will be forward compatible with the IEEE 802 11i security specification currently under development WPA is a subset of the current 802 11i draft and uses certain pieces of the 802 11i draft that are ready to bring to market today such as 802 1x and TKIP The main pieces of the 802 111 draft that are not included in WPA are secure IBSS Ad Hoc mode secure fast handoff for specialized 802 11 VoIP phones as well as enhanced encryption protocols such as AES CCMP These features are either not yet ready for market or will require hardware upgrades to implement What are the Key Features of WPA Security The following security features are included in the WPA standard e WPA Authentication e WPA Encryption Key Management Temporal Key I
13. Radio LAN device mit den grundlegenden Anforderungen und den anderen relevanten Festlegungen der Richtlinie 1999 5 EG Wien Greek ME THN MAPOYZA NETGEAR Inc AHAQNEI OTI Radio LAN device 2YMMOP OQONETAI IPO TIX OYZIQAEIZ AMAITH EI KAI TI AOINES ZXETIKEZ AIATAZEIZ THE OAHMIA 1999 5 EK Italian Con la presente NETGEAR Inc dichiara che questo Radio LAN device conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999 5 CE Spanish Por medio de la presente NETGEAR Inc declara que el Radio LAN device cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999 5 CE Portuguese NETGEAR Inc declara que este Radio LAN device est conforme com os requisitos essenciais e o disposi es da Directiva 1999 5 CE October 2004 Antenna Statement for the European Community Please note that the 100m W EIRP limit and regulations could vary in Europe from country to country Please check the regulations in your country The antenna cable type and length must comply with European regulations Refer to the table below for approved antenna and cable accessories In addition to its own antenna the WG102 device has been approved for use with the following detachable antennas and antenna cables Approved AntennaGain Approved Minimum Minimum Maximum Antennas and type Antenna Cable Antenna Antenna Transmitted Cable Cable Power Length Attenu
14. WG102 on e Have I connected the wireless access point correctly Go to Installing the WG102 Access Point on page 3 5 e Icannot remember the wireless access point s configuration password Go to Changing the Administrator Password on page 4 8 ES Note For up to date WG102 installation details and troubleshooting guidance visit www NETGEAR com If you have trouble setting up your WG102 check the tips below No lights are lit on the access point It takes a few seconds for the power indicator to light up Wait a minute and check the power light status on the access point If the access point has no power e Make sure the power cord is connected to the access point e Make sure the power adapter is connected to a functioning power outlet If it is in a power strip make sure the power strip is turned on If it is plugged directly into the wall verify that it is not a switched outlet e Make sure you are using the correct NETGEAR power adapter supplied with your access point Troubleshooting 6 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point The Wireless LAN activity light does not light up The access point s antennae are not working If the Wireless LAN activity light stays off disconnect the adapter from its power source and then plug it in again Make sure the antennas are tightly connected to the WG102 Contact NETGEAR technical su
15. WINS Windows Internet Naming Service is a server process for resolving Windows based computer names to IP addresses Wireless Network Name SSID Wireless Network Name SSID is the name assigned to a wireless network This is the same as the SSID or ESSID configuration parameter Glossary 7 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 8 Glossary October 2004 Numerics 802 11b B 1 A ad hoc mode B 2 Auto MDI MDI X C 2 Auto Uplink 2 4 C 2 Basic Wireless Connectivity 3 18 Basic Wireless Settings 3 9 3 12 3 14 BSSID B 2 C Carrier Sense Multiple Access with Collision Avoidance 5 2 Carrier Sense Multiple Access with Collision Detection 5 2 Cat5 cable C 2 configuration erasing 4 7 restore 4 6 Country Domain 3 12 crossover cable 2 4 C 2 CSMA CA 5 2 CSMA CD 5 2 E ESSID 3 18 B 2 Ethernet 2 3 F factory settings restoring 4 7 features 2 2 G General 4 3 Index Index infrastructure mode B 2 IP Settings 3 24 L Log In to the ME103 3 11 Logout 3 7 MDI MDI X C 2 MDI MDI X wiring C 4 O Open System authentication B 2 P Passphrase 3 15 3 20 Placement 3 1 R Range 3 1 range 3 1 restore configuration 4 6 restore factory settings 4 7 Restrict Wireless Access by MAC Address 3 19 RTS Threshold 5 1 5 2 5 3 S Saving the Configuration File 4 7 Shared Key authentication B 3 SNMP 2 2 SSID 3 12 3 18 4 3
16. a wired Ethernet backbone can further lengthen the wireless network coverage As a mobile computing device moves out of the range of one access point it moves into the range of another As a result wireless clients can freely roam from one Access Point to another and still maintain seamless connection to the network The auto sensing capability of the NETGEAR WG102 ProSafe 802 11g Wireless Access Point allows packet transmission at up to 108 Mbps or at reduced speeds to compensate for distance or electromagnetic interference Introduction 2 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Key Features The WG102 Access Point is easy to use and provides solid wireless and networking support Supported Standards and Conventions The following standards and conventions are supported Standards Compliant The Wireless Access Point complies with the IEEE 802 11g for Wireless LANs WEP support Support for WEP is included 64 bit 128 bit and 152 bit keys are supported Full WPA support WPA enterprise class strong security with RADIUS and certificate authentication as well as dynamic encryption key generation WPA PSK pre shared key authentication without the overhead of RADIUS servers but with all of the strong security of WPA DHCP Client Support DHCP provides a dynamic IP address to PCs and other devices upon request The WG102 can act as a client and obtain information from y
17. authentication server which employs mutual authentication so that a rogue wireless user does not join the network It is important to note that 802 1x does not provide the actual authentication mechanisms When using 802 1x the EAP type such as Transport Layer Security EAP TLS or EAP Tunneled Transport Layer Security EAP TTLS defines how the authentication takes place Note For environments with a Remote Authentication Dial In User Service RADIUS infrastructure WPA supports Extensible Authentication Protocol EAP For environments without a RADIUS infrastructure WPA supports the use of a pre shared key Together these technologies provide a framework for strong user authentication Windows XP implements 802 1x natively and several NETGEAR switch and wireless access point products support 802 1x B 12 Wireless Networking Basics October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Client with a WPA enabled wireless adapter and supplicant Win XP Funk For example a For example a Meetinghouse WPA enabled AP RADIUS server L RS S A supplican 1 B Authenticator Authenticating Server Identity Identity Request Credentials Request Credentials Credentials Credentials gt gt Authentication Authentication Uncontrolled Port LAN Resources Controlled Port Figure B 4 802 1x Authentication Sequence The AP sends Beacon Frames
18. by opening your browser and entering http 192 168 0 229 in the address field A login window like the one shown below opens NEED PRODUCT PHOTO OR ILLUSTRATION Figure 3 2 Login window e When prompted enter admin for the user name and password for the password both in lower case letters Basic Installation and Configuration 3 6 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point e The Web browser will then display the WG102 settings page General Basic Settings Wireless Settings WEPMPA Settings Radius Server Settings Access Control Change Password Remote Management Upgrade Firmware BackupRestore Settings Reboot AP Activity Log Available Wireless Station List Statistics NETGEAR ProSafe Wireless Access Point S109 General Access Point Information Access Point Name netgear501523 MAC Address 00 0F B5 50 15 23 Country Region Unspecified Firmware Version V0 1_02 Access Point Mode Access Point Current IP Settings IP Address 192 168 0 229 Subnet Mask 255 255 255 0 Default Gateway 192 168 0 1 7 DHCP Serer unreachable Pace chen resetting back to Default IP Current Wireless Settings Operating Mode Auto 802 119 802 11b Wireless Network Name SSID NETGEAR Channel Frequency 11 12 462GHZ WEP WPA None Figure 3 3 Login result WG102 home page When the wireless access point is connected to the Internet click the Knowledge
19. configuring WPA settings To configure WPA PSK follow these steps 1 Log in at the default LAN address of http 192 168 0 229 with the default user name of admin and default password of password or using whatever LAN address and password you have set up Click WEP WPA Settings in the Security menu of the WG102 WEPIWPA Settings Wireless LAN Network Authentication Data Encryption Passphrase A with Pad Key 1 WPA PSK Key 2 Key 3 Key 4 Enable Wireless Client Security Separator No Ores Figure 3 13 Wireless Settings menu 3 Choose WPA PSK from the list 4 Enter the pre shared key passphrase 5 Click Apply to save your settings 3 23 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Using the Basic IP Settings Options The Basic IP Settings menu is under the Basic heading of the main menu Use this menu to configure DHCP static IP and access point access point name settings Basic Settings Access Point Name netgears062D2 IP Address DHCP Client Enable Disable IPAddress 192 168 o 229 IP Subnet Mask 255 255 255 o Default Gateway o 0 0 AG onssever I J L Time Zone Select J Oo Adjust for Daylight Saving Time CurrentTime 2004 Jan 1 19 15 48 GMT Figure 3 14 IP Settings menu Access Point Name NetBIOS Enter a new
20. how a centralized DHCP server can assign network configuration information to multiple DHCP clients The assigned information includes IP addresses DNS addresses and gateway router addresses DMZ Specifying a Default DMZ Server allows you to set up a computer or server that is available to anyone on the Internet for services that you haven t defined There are security issues with doing this so only do this if you ll willing to risk open access DNS Short for Domain Name System or Service an Internet service that translates domain names into IP addresses 2 Glossary October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Because domain names are alphabetic they re easier to remember The Internet however is really based on IP addresses Every time you use a domain name therefore a DNS service must translate the name into the corresponding IP address For example the domain name www example com might translate to 198 105 232 4 The DNS system is in fact its own network If one DNS server doesn t know how to translate a particular domain name it asks another one and so on until the correct IP address is returned Domain Name A descriptive name for an address or group of addresses on the Internet Domain names are of the form of a registered entity name plus one of a number of predefined top level suffixes such as com edu uk etc For example in the address mail NETGEAR com mail
21. is a server name and NETGEAR com is the domain DSL Short for digital subscriber line but is commonly used in reference to the asymmetric version of this technology ADSL that allows data to be sent over existing copper telephone lines at data rates of from 1 5 to 9 Mbps when receiving data known as the downstream rate and from 16 to 640 Kbps when sending data known as the upstream rate ADSL requires a special ADSL modem ADSL is growing in popularity as more areas around the world gain access Dynamic Host Configuration Protocol DHCP An Ethernet protocol specifying how a centralized DHCP server can assign network configuration information to multiple DHCP clients The assigned information includes IP addresses DNS addresses and gateway router addresses EAP Extensible Authentication Protocol is a general protocol for authentication that supports multiple authentication methods EAP an extension to PPP supports such authentication methods as token cards Kerberos one time passwords certificates public key authentication and smart cards In wireless communications using EAP a user requests connection to a WLAN through an AP which then requests the identity of the user and transmits that identity to an authentication server such as RADIUS The server asks the AP for proof of identity which the AP gets from the user and then sends back to the server to complete the authentication EAP is defined by RFC 2284 ESSID The Exten
22. key authentication Michael With 802 11 and WEP data integrity is provided by a 32 bit integrity check value ICV that is appended to the 802 11 payload and encrypted with WEP Although the ICV is encrypted you can use cryptanalysis to change bits in the encrypted payload and update the encrypted ICV without being detected by the receiver With WPA a method known as Michael specifies a new algorithm that calculates an 8 byte message integrity check MIC using the calculation facilities available on existing wireless devices The MIC is placed between the data portion of the IEEE 802 11 frame and the 4 byte ICV The MIC field is encrypted together with the frame data and the ICV Michael also provides replay protection A new frame counter in the IEEE 802 11 frame is used to prevent replay attacks Optional AES Support to be Phased In One of the encryption methods supported by WPA besides TKIP is the advanced encryption standard AES although AES support will not be required initially for Wi Fi certification This is viewed as the optimal choice for security conscience organizations but the problem with AES is that it requires a fundamental redesign of the NIC s hardware in both the station and the access point TKIP is a pragmatic compromise that allows organizations to deploy better security while AES capable equipment is being designed manufactured and incrementally deployed Wireless Networking Basics B 15 October 2004
23. license requirements and allowed channels of operation apply in some countries as described below Note The user must use the web based configuration GUI provided with this product to ensure the channels of operation are in conformance with the spectrum usage rules for European Community countries as described below e This device requires that the user or installer properly enter the current country of operation in the Wireless Settings page as described in the user guide before operating this device e This device will automatically limit the allowable channels determined by the current country of operation Incorrectly entering the country of operation may result in illegal operation and may cause harmful interference to other system The user is obligated to ensure the device is operating according to the channel limitations indoor outdoor restrictions and license requirements for each European Community country as described in this document e This device may be operated indoors or outdoors in all countries of the European Community using the 2 4GHz band Channels 1 13 except where noted below In Italy the end user must apply for a license from the national spectrum authority to operate this device outdoors In France outdoor operation is only permitted using the 2 4 2 454 GHz band Channels 1 7 October 2004 Declaration of Conformity in Languages of the European Community English Hereby NETGEAR Inc declares that t
24. means that you can apply up to three different channels within your wireless network There are only 11 usable wireless channels in the United States It is recommended that you start using channel 1 and grow to use channel 6 and 11 when necessary as these three channels do not overlap WPA Wireless Security Wi Fi Protected Access WPA is a specification of standards based interoperable security enhancements that increase the level of data protection and access control for existing and future wireless LAN systems The IEEE introduced the WEP as an optional security measure to secure 802 11b Wi Fi WLANs but inherent weaknesses in the standard soon became obvious In response to this situation the Wi Fi Alliance announced a new security architecture in October 2002 that remedies the shortcomings of WEP This standard formerly known as Safe Secure Network SSN is designed to work with existing 802 11 products and offers forward compatibility with 802 11i the new wireless security architecture being defined in the IEEE B 8 Wireless Networking Basics October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point WPA offers the following benefits e Enhanced data privacy e Robust key management e Data origin authentication e Data integrity protection The Wi Fi Alliance is now performing interoperability certification testing on Wi Fi Protected Access products Starting August of 2003 all new
25. name for the wireless access point and click Apply to save your changes The IP Address The wireless access point is shipped preconfigured with its DHCP client disabled and with the following private static IP addresses IP Address 192 168 0 229 IP Subnet Mask 255 255 255 0 Gateway 0 0 0 0 Primary and Secondary DNS Servers 0 0 0 0 Basic Installation and Configuration 3 24 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point If your network has a requirement to use a different IP addressing scheme you can make those changes in this menu These settings are only required if the Use this IP address radio button is chosen Remember to click Apply to save your changes e Time Zone Select the time zone setting for your location 3 25 Basic Installation and Configuration October 2004 Chapter 4 Management This chapter describes how to use the management features of your NETGEAR WG102 ProSafe 802 11g Wireless Access Point These features can be found by clicking on the Maintenance heading in the Main Menu of the browser interface Using Syslog and Activity Log Information The Information contains the activity log link you can use for setting up a syslog server and viewing activity log information From the main menu of the browser interface under the Information heading click the Activity Log link to view this screen Activity Log Act
26. of the wireless coverage area for all mobile devices Failure to follow these guidelines can result in significant performance degradation or inability to wirelessly connect to the wireless access point RF Exposure Warning for North America and Australia Warning To meet FCC and other national safety guidelines for RF exposure the antennas for this device see below must be installed to ensure a minimum separation distance of 20cm 7 9 in from persons Further the antennas shall not be colocated with other antenna or radio transmitter October 2004 Antenna Statement for North America and Australia In addition to its own antenna the WG102 device has been approved for use with the following detachable antennas and antenna cables Approved AntennaGain Approved Antenna Antenna Maximum Antennas and type Cable Cable Length Transmitted Power NETGEAR 18 dBi directional NETGEAR ANT24D18 outdoor indoor ACC 10314 01 thru 05 1 5mto 30m 18 dBm 18 dBi ant 9 dBi NETGEAR ee NETGEAR ANT2409 omnidirectional ACGC 10314 01 thru 05 1 5 m to 30 m 18 dBm 9 dBi ant outdoor indoor NETGEAR 5 dBi ceiling wall NETGEAR ANT2405 indoor ACC 10314 01 thru 05 WG102 maximum radiated power in North America and Australia 19 dBm cable loss antenna gain 1 5 m to 30 m 18 dBm 5 dBi ant Please go to www netgear com and use the search feature to find an updated list of wireless accessories approved to be used with the WG10
27. the WG102 AP2 on LAN Segment 2 in Point to Point Bridge mode AP1 must have AP2 s MAC address in its Remote MAC Address field and AP2 must have AP1 s MAC address in its Remote MAC Address field 3 Configure and verify the following parameters for both access points e Verify that the LAN network configuration of the WG102 Access Points both are configured to operate in the same LAN network address range as the LAN devices e Both use the same ESSID Channel authentication mode if any and security settings if security is in use 4 Verify connectivity across the LAN 1 and LAN 2 e Acomputer on either LAN segment should be able to connect to the Internet or share files and printers of any other PCs or servers connected to LAN Segment 1 or LAN Segment 2 How to Configure Multi Point Wireless Bridging AP in Point to Point Bridge Mode Master AP in Point to Multi Point Bridge Mode Router APin Point to Point INTERNE T Bridge Mode 192 168 0 1 IJ LAN Pe Hub or Switch Segment 1 Cy LAN ja Segment 3 LAN St Ge Segment 2 Figure 5 5 Multi Point bridging 1 Configure the Operating Mode of the WG102 Access Points Because it is in the central location configure WG102 AP1 on LAN Segment 1 in Point to Multi Point Bridge mode The MAC addresses of AP2 and AP3 are required in API Configure WG102 AP2 on LAN Segment 2 in Point to Point Bridge mode with the Remote MAC Add
28. to Wireless Client Programs Wireless client programs must be updated to permit the configuration of WPA authentication and preshared key and the new WPA encryption algorithms TKIP and the optional AES component To obtain the Microsoft WPA client program visit the Microsoft Web site B 18 Wireless Networking Basics October 2004 Glossary Use the list below to find definitions for technical terms used in this manual 10BASE T IEEE 802 3 specification for 10 Mbps Ethernet over twisted pair wiring 100BASE Tx IEEE 802 3 specification for 100 Mbps Ethernet over twisted pair wiring 802 1x 802 1x defines port based network access control used to provide authenticated network access and automated data encryption key management The IEEE 802 1x draft standard offers an effective framework for authenticating and controlling user traffic to a protected network as well as dynamically varying encryption keys 802 1x uses a protocol called EAP Extensible Authentication Protocol and supports multiple authentication methods such as token cards Kerberos one time passwords certificates and public key authentication For details on EAP specifically refer to IETF s RFC 2284 802 11b IEEE specification for wireless networking at 11 Mbps using direct sequence spread spectrum DSSS technology and operating in the unlicensed radio spectrum at 2 5GHz 802 119 A soon to be ratified IEEE specification for wireless networking at 54 Mb
29. your Web browser and can be upgraded remotely e Access Control The Access Control MAC address filtering feature can ensure that only trusted wireless stations can use the WG102 to gain access to your LAN e Simple Configuration If the default settings are unsuitable they are easy to change e Hidden Mode The SSID is not broadcast assuring only clients configured with the correct SSID can connect e Configuration Backup Configuration settings can be backed up to a file and restored e Power over Ethernet Power can be supplied to the WG102 over the Ethernet port from any 802 3af compliant mid span or end span source such as the NETGEAR FSM7326P Managed Power over Ethernet Layer 3 managed switch e Autosensing Ethernet Connection with Auto Uplink Interface Connects to 10 100 Mbps IEEE 802 3 Ethernet networks e LED Indicators Power test LAN speed LAN activity and wireless activity are easily identified 802 11g Standards based Wireless Networking The NETGEAR WG102 ProSafe 802 11g Wireless Access Point provides a bridge between Ethernet wired LANs and 802 11g compatible wireless LAN networks It provides connectivity between Ethernet wired networks and radio equipped wireless notebook systems desktop systems print servers and other devices Additionally the WG102 supports the following wireless features e Distributed coordinated function CSMA CA Back off procedure ACK procedure retransmission of unacknowledged fram
30. 0 bit encryption but 128 bit encryption may not be available outside of the United States due to U S export regulations When configured for 40 bit encryption 802 11 products typically support up to four WEP Keys Each 40 bit WEP Key is expressed as 5 sets of two hexadecimal digits 0 9 and A F For example 12 34 56 78 90 is a 40 bit WEP Key When configured for 128 bit encryption 802 11 products typically support four WEP Keys but some manufacturers support only one 128 bit key The 128 bit WEP Key is expressed as 13 sets of two hexadecimal digits 0 9 and A F For example 12 34 56 78 90 AB CD EF 12 34 56 78 90 is a 128 bit WEP Key Table B 1 Encryption Key Sizes Encryption Key Size of Hexadecimal Digits Example of Hexadecimal Key Content 64 bit 24 40 10 4C72F08AE1 128 bit 24 104 26 4C72F08AE19D57A3FF6B260037 Note Typically 802 11 access points can store up to four 128 bit WEP Keys but some 802 11 client adapters can only store one Therefore make sure that your 802 11 access and client adapters configurations match B 6 Wireless Networking Basics October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point WEP Configuration Options The WEP settings must match on all 802 11 devices that are within the same wireless network as identified by the SSID In general if your mobile clients will roam between access points then all of the 802 11 acces
31. 2 in North America and Australia Industry Canada Compliance Statement This Class B Digital apparatus meets all the requirements of the Canadian Interference Causing Equipment Regulations ICES 003 Cet appareil numerique de classe B respecte les exigences du reglement du Canada sur le materiel brouilleur NMB 003 The device is certified to the requirements of RSS 210 for 2 4 GHz spread spectrum devices The use of this device in a system operating either partially or completely outdoors may require the user to obtain a license October 2004 for the system according to the Canadian regulations For further information contact your local Industry Canada office Europe EU Declaration of Conformity A printed copy of the EU Declaration of Conformity certificate for this product is provided in the WG102 product package C 0681 This device is a 2 4 5 0 GHz dual band low power RF device intended for home and office use in EU and EFTA member states In some EU EFTA member states some restrictions may apply Please contact local spectrum management authorities for further details before putting this device into operation Marking by the above symbol indicates compliance with the Essential Requirements of the R amp TTE Directive of the European Union 1999 5 EC This equipment meets the following conformance standards EN 300 328 EN 301 489 17 EN 60950 1 Safety of Information Technology Equipment Including Electrical Business
32. Access Point cannot connect to the WG102 to configure it Check these items The WG102 is properly installed LAN connections are OK and it is powered on Check that the LAN port LED is on amber indicating a 10 Mbps Ethernet connection or green indicating a 100 Mbps Ethernet connection to verify that the Ethernet connection is OK The default configuration of the WG102 is for a static IP address of 192 168 0 229 and a Mask of 255 255 255 0 with DHCP disabled Make sure your network configuration settings are correct If you are using the NetBIOS name of the WG102 to connect ensure that your computer and the WG102 are on the same network segment or that there is a WINS server on your network If your computer is set to Obtain an IP Address automatically DHCP client restart it If your computer uses a Fixed Static IP address ensure that it is using an IP Address in the range of the WG102 The WG102 default IP Address is 192 168 0 229 and the default Subnet Mask is 255 255 255 0 When enter a URL or IP address get a timeout error A number of things could be causing this Try the following troubleshooting steps Check whether other PCs work If they do ensure that your PCs TCP IP settings are correct If using a Fixed Static IP Address check the Subnet Mask Default Gateway DNS and IP Addresses If the PCs are configured correctly but still not working ensure that the WG102 is connected and turned
33. CA A Certificate Authority is a trusted third party organization or company that issues digital certificates used to create digital signatures and public private key pairs Cat 5 Category 5 unshielded twisted pair UTP cabling An Ethernet network operating at 10 Mbits second LOBASE T will often tolerate low quality cables but at 100 Mbits second 1OBASE Tx the cable must be rated as Category 5 or Cat 5 or Cat V by the Electronic Industry Association EIA This rating will be printed on the cable jacket Cat 5 cable contains eight conductors arranged in four twisted pairs and terminated with an RJ45 type connector In addition there are restrictions on maximum cable length for both 10 and 100 Mbits second networks Certificate Authority A Certificate Authority is a trusted third party organization or company that issues digital certificates used to create digital signatures and public private key pairs The role of the CA in this process is to guarantee that the individual granted the unique certificate is in fact who he or she claims to be Usually this means that the CA has an arrangement with a financial institution such as a credit card company which provides it with information to confirm an individual s claimed identity CAs are a critical component in data security and electronic commerce because they guarantee that the two parties exchanging information are really who they claim to be DHCP An Ethernet protocol specifying
34. D sis sdivnie eee B 2 Authentication and WEP Data Encryption c ccccccccccsssccsssessesessecssesesssecseesssssseesstees BOD WPA Winns Se curi PE A POCA GI sce ca scc seca sciecatueiaieloddeteddadaineutaccoeueeeiacaidaceldctoiteakGeamesicicomer Open System Authentication i i ints Sharad Koy Aerie CaON errr a a Overiew 0f WEP ParamglorS ceciren a a Eee Key Size ee eer P Configuration Dpi a How Does WPA Compare to WEP AEN AE E T E O E E hl How Does WPA Compare to IEEE 802 11 i tans What are the Key Features of WPA Security WPA Authentication Enterprise level User Authentication via 802 1x EAP and RADIUS cccccccsccssecstseeeeseteessteeeees B 12 WPA Data Encryption Key Management ceeeeeseseseeeeessetesseeneesees B 14 Is WPA Perfect ET Product Support f he WPA eae Supporting a Mixture a WPA and WEP Wireless Clients is piaua siais Changes to Wireless Access Points C ele to siesta easels e Glossary Index Contents October 2004 vi October 2004 Contents Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Chapter 1 About This Manual Congratulations on your purchase of the NETGEAR WG102 ProSafe 802 11g Wireless Access Point The WG102 provides connection for multiple personal computers to the Internet through an external broadband access device such as a cable modem or DSL modem Audience Ver
35. G102 1 Turn on the wireless station The station listens for messages from any access points that are in range The station finds a message from an access point that has a matching SSID The station sends an authentication request to the access point The access point authenticates the station The station sends an association request to the access point The access point associates with the station oc ND MR WN The station can now communicate with the Ethernet network through the access point An access point must authenticate a station before the station can associate with the access point or communicate with the network The IEEE 802 11 standard defines two types of authentication Open System and Shared Key e Open System Authentication allows any device to join the network assuming that the device SSID matches the access point SSID Alternatively the device can use the ANY SSID option to associate with any available Access Point within range regardless of its SSID e Shared Key Authentication requires that the station and the access point have the same WEP Key to authenticate These two authentication procedures are described below Open System Authentication The following steps occur when two devices use Open System Authentication 1 The station sends an authentication request to the access point Wireless Networking Basics B 3 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Ac
36. If you want the AP to operate in Supger G mode use this feature Super G Mode RTS Threshold 0 2346 Advanced Wireless Settings Enable Disable 2346 Fragmentation Length 256 2346 2346 Beacon Interval 20 1000 100 ms DTIM Interval 1 255 1 Preamble Type O Long Auto Figure 5 2 Advanced Wireless Settings screen The table below describes the advanced wireless parameters Table 5 1 Advanced Wireless LAN Settings Fields Field Super G Mode RTS Threshold Fragmentation Length Beacon Interval Description Super G Mode is a proprietary extension to the 802 11g standard which can double the throughput to 108Mbps Only compatible Wireless stations can use this mode Select Enable or Disable as required The packet size used to determine whether it should use the CSMA CD Carrier Sense Multiple Access with Collision Detection or the CSMA CA Carrier Sense Multiple Access with Collision Avoidance mechanism for packet transmission This is the maximum packet size used for fragmentation Packets larger than the size programmed in this field will be fragmented The Fragment Threshold value must be larger than the RTS Threshold value Specifies the data beacon rate between 20 and 1000 DTIM Interval The Delivery Traffic Indication Message specifies the data beacon rate between 1 and 255 Preamble Type A long transmit preamble may provide a more reliable connection or slightly longer
37. N network address range as the LAN devices e All APs must be on the same LAN That is all the APs LAN IP address must be in the same network e Ifusing DHCP all WG102 Access Points should be set to Obtain an IP address automatically DHCP Client in the IP Address Source portion of the Basic IP Settings menu e All WG102 Access Points use the same SSID Channel authentication mode if any and encryption in use 3 Verify connectivity across the LANs Advanced Configuration 5 7 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point e A computer on any LAN segment should be able to connect to the Internet or share files and printers with any other PCs or servers connected to any of the three WLAN segments Note You can extend this repeating by adding up to 2 additional WG102s configured in repeater mode However since Repeater configurations communicate in half duplex mode the bandwidth decreases as you add Repeaters to the network Also you can extend the range of the wireless network with NETGEAR wireless antenna accessories 5 8 Advanced Configuration October 2004 Chapter 6 Troubleshooting This chapter provides information about troubleshooting your NETGEAR WG102 ProSafe 802 11g Wireless Access Point After each problem description instructions are given to help you diagnose and solve the problem For the common problems listed go to the section indicated e Is the
38. SSID will be NETGEAR the DHCP client will be disabled the default LAN IP address will be 192 168 0 229 and the access point name is reset to the name printed on the label on the bottom of the unit Using the Reset Button to Restore Factory Default Settings To restore the factory default configuration settings without knowing the login password or IP address you must use the Default Reset button on the rear panel of the wireless access point see WG102 rear panel on page 2 7 The reset button has two functions e Reboot When pressed and released the Wireless Access Point will reboot restart e Reset to Factory Defaults This button can also be used to clear all data and restore all settings to the factory default values To clear all data and restore the factory default values 1 Power Off the WG102 2 Hold the Reset Button down while you Power On the WG102 for 5 seconds 3 Continue holding the Reset Button until the LEDs blink twice 4 Release the Reset Button The factory default configuration has now been restored and the WG102 is ready for use Management 4 7 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Changing the Administrator Password The default password is password Change this password to a more secure password You cannot change the administrator login name From the main menu of the browser interface under the Management heading click Change Pas
39. Vfg 243 1991 and Vfg 46 1992 The operation of some October 2004 equipment for example test transmitters in accordance with the regulations may however be subject to certain restrictions Please refer to the notes in the operating instructions Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and has been granted the right to test the series for compliance with the regulations 10 October 2004 Contents Chapter 1 About This Manual Audience VES CORnVeNOIIS sosnami 1 1 Howto Ce ae AIGA 25 ae 5 sa aplrcccuyapaennenGecareacanwenctaraiacentnseiaresenee heen eat 1 2 How i0 Print is Manual sssrinin iarna sttecauranda sane nd saceonteeies EGES 1 3 Chapter 2 Introduction About the NETGEAR WG102 ProSafe 802 11g Wireless Access Point 00 00 2 1 Peay A Te AE NTE E E sand egus T TE A A T A ETT 2 2 802 11g Standards based Wireless Networking ccccccseseeeceeeeeeeeneeeeeeeeeeeeeess 2 3 Autosensing Ethernet Connections with Auto Uplink es sessssssesesssssessrrsrreeereeesns 2 3 Compatible and Related NETGEAR Products cc cccssceceeeeeeeeeceeteseeeeeenaeeeteneees 2 4 System PAQUIN sucrase eaer aaar aA aar aaraa ARETE 2 4 ohera eaa A A A NE E TA E E T A O 2 5 Harca Dosen aaa rracncrt rman nnn er semunrnrrrseurernre vert ter eerure eer 2 6 Chapter 3 Basic Installation and Configuration Observing Placement and Range Guidelines cc
40. Wi Fi certified products will have to support WPA NETGEAR will implement WPA on client and access point products and make this available in the second half of 2003 Existing Wi Fi certified products will have one year to add WPA support or they will lose their Wi Fi certification The 802 111 standard is currently in draft form with ratification due at the end of 2003 While the new IEEE 802 11i standard is being ratified wireless vendors have agreed on WPA as an interoperable interim standard How Does WPA Compare to WEP WEP is a data encryption method and is not intended as a user authentication mechanism WPA user authentication is implemented using 802 1x and the Extensible Authentication Protocol EAP Support for 802 1x authentication is required in WPA In the 802 11 standard 802 1x authentication was optional For details on EAP specifically refer to IETF s RFC 2284 With 802 11 WEP all access points and client wireless adapters on a particular wireless LAN must use the same encryption key A major problem with the 802 11 standard is that the keys are cumbersome to change If you do not update the WEP keys often an unauthorized person with a sniffing tool can monitor your network for less than a day and decode the encrypted messages Products based on the 802 11 standard alone offer system administrators no effective method to update the keys For 802 11 WEP encryption is optional For WPA encryption using Temporal Key Integrity
41. al installation This equipment generates uses and can radiate radio October 2004 frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try and correct the interference by one or more of the following measures e Reorient or locate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Placement and Range Guidelines Indoors computers can connect over 802 11 wireless networks at a maximum range of several hundred feet for 802 11b g devices However the operating distance or range of your wireless connection can vary significantly based on the physical placement of the wireless access point For best results identify a location for your wireless access point according to these guidelines Away from potential sources of interference such as PCs large metal surfaces microwaves and 2 4 GHz cordless phones e Inanelevated location such as a high shelf that is near the center
42. any liability that may occur due to the use or application of the product s or circuit layout s described herein Modifications made to the product unless expressly approved by Netgear could void the user s authority to operate the equipment NETGEAR does not assume any liability that may occur due to such condition October 2004 FCC Statement DECLARATION OF CONFORMITY We Netgear 4500 Great America Parkway Santa Clara CA 95054 USA Tel 1 408 907 8000 declare under our sole responsibility that the product s WG102 Model Designation 802 11g ProSafe Wireless Access Point Product Name complies with Part 15 of FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation To assure continued compliance any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment Example use only shielded interface cables when connecting to computer or peripheral devices NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residenti
43. are availability may be limited Installing the WG102 Access Point Before installing the NETGEAR WG102 ProSafe 802 11g Wireless Access Point you should make sure that your Ethernet network is up and working You will be connecting the access point to the Ethernet network so that computers with 802 11b or 802 11g wireless adapters will be able to communicate with computers on the Ethernet network In order for this to work correctly verify that you have met all of the system requirements shown on page 2 4 1 SET UP THE WG102 ACCESS POINT Tip Before mounting the WG102 in a high location first set up and test the WG102 to verify wireless network connectivity a Prepare a computer with an Ethernet adapter If this computer is already part of your network record its TCP IP configuration settings b Configure the computer with a static IP address of 192 168 0 210 and 255 255 255 0 for the Subnet Mask c Connect an Ethernet cable from the WG102 to the computer d Turn on your computer connect the power adapter to the WG102 and verify the following The PWR power light goes on The LAN light of the wireless access point is lit when connected to a powered on computer 3 5 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 2 CONFIGURE LAN AND WIRELESS ACCESS a Configure the WG102 Ethernet port for LAN access e Connect to the WG102
44. area in which your PCs will operate In an elevated location such as a high shelf where the wirelessly connected PCs have line of sight access even if through walls Away from sources of interference such as PCs microwaves and 2 4 GHz cordless phones Away from large metal surfaces Putting the antenna in a vertical position provides best side to side coverage Putting the antenna in a horizontal position provides best up and down coverage If using multiple access points it is better if adjacent access points use different radio frequency Channels to reduce interference The recommended Channel spacing between adjacent access points is 5 Channels for example use Channels 1 and 6 or 6 and 11 The time it takes to establish a wireless connection can vary depending on both your security settings and placement WEP connections can take slightly longer to establish Also WEP encryption can consume more battery power on a notebook computer Cabling Requirements The WG102 Access Point connects to your LAN via twisted pair Category 5 Ethernet cable with RJ 45 connectors Basic Installation and Configuration 3 2 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Default Factory Settings When you first receive your WG102 the default factory settings will be set as shown below You can restore these defaults with the Factory Default Restore switch on the rear panel see WG102
45. ation NETGEAR 18 dBi NETGEAR 3 dBm 18 dBi directional ANT24D18 ACC 10314 05 15 dBm EIRP outdoor indoor NETGEAR ACC 10314 04 8 9 dBm 9 dBi or 17 9 dBm EIRP ACC 10314 05 o sai NETGEAR NETGEAR 5 dBi ceiling wall ACC 10314 01 14 dBm 5 dBi ANT2405 indoor thru 05 19 dBm EIRP 9 dBi omnidirectional outdoor indoor NETGEAR ANT2409 WG102 maximum radiated power in the European Community 15 dBm cable loss antenna gain Please go to www netgear com and use the search feature to find an updated list of wireless accessories approved to be used with the WG102 in the European Community Best tigung des Herstellers Importeurs Es wird hiermit best tigt da das NETGEAR WG102 ProSafe 802 11g Wireless Access Point gem der im BMPT AmtsblVfg 243 1991 und Vfg 46 1992 aufgef hrten Bestimmungen entst rt ist Das vorschriftsm ige Betreiben einiger Ger te z B Testsender kann jedoch gewissen Beschr nkungen unterliegen Lesen Sie dazu bitte die Anmerkungen in der Betriebsanleitung Das Bundesamt f r Zulassungen in der Telekommunikation wurde davon unterrichtet da dieses Ger t auf den Markt gebracht wurde und es ist berechtigt die Serie auf die Erf llung der Vorschriften hin zu berpr fen Certificate of the Manufacturer Importer It is hereby certified that the NETGEAR WG102 ProSafe 802 11g Wireless Access Point has been suppressed in accordance with the conditions set out in the BMPT Amtsbl
46. bps 17 16 15 dBm Note Maximum transmit power varies based on country or region selection to ensure local regulatory compliance 802 11b andg Typical Receive Sensitivity 802 11b mode at 1Mbps 95 dBm 802 11b mode at 2 Mbps 93 dBm 802 11b mode at 5 5 Mbps 91dBm 802 11b mode at 11 Mbps 89 dBm 802 11g mode at 6 Mbps 91 dBm 802 11g mode at 9 Mbps 90 dBm 802 11g mode at 12 Mbps 89 dBm 802 11g mode at 18 Mbps 87 dBm 802 11g mode at 24 Mbps 84 dBm 802 11g mode at 36 Mbps 81 dBm 802 11g mode at 48 Mbps 77 dBm 802 11g mode at 54 Mbps 75 dBm 802 11g mode at 108 Mbps 72 dBm Antenna One 1 external 5 dBi 2 4 GHz detachable antenna 802 11 Security 40 bits also called 64 bits 128 and 152 bits WEP data encryption and WPA A 2 Specifications October 2004 Appendix B Wireless Networking Basics This chapter provides an overview of Wireless networking Wireless Networking Overview The WG102 Access Point conforms to the Institute of Electrical and Electronics Engineers IEEE 802 11b and 802 11g standards for wireless LANs WLANs On an 802 11b or g wireless link data is encoded using direct sequence spread spectrum DSSS technology and is transmitted in the unlicensed radio spectrum at 2 5GHz The maximum data rate for the 802 11b wireless link is 11 Mbps but it will automatically back down from 11 Mbps to 5 5 2 and 1 Mbps when the radio signal is weak or whe
47. cess Point 2 The access point authenticates the station 3 The station associates with the access point and joins the network This process is illustrated below 802 11b Authentication Open System Steps 1 Authentication request sent to AP gt J 2 AP authenticates 1 I Access Point l eC C rrr Sao Sf ee 2 i 3 Client connects to network E ws Client attempting to connect Servers PC s Figure B 1 Open system authentication Shared Key Authentication The following steps occur when two devices use Shared Key Authentication 1 The station sends an authentication request to the access point 2 The access point sends challenge text to the station 3 The station uses its configured 64 bit or 128 bit default key to encrypt the challenge text and sends the encrypted text to the access point 4 The access point decrypts the encrypted text using its configured WEP Key that corresponds to the station s default key The access point compares the decrypted text with the original challenge text If the decrypted text matches the original challenge text then the access point and the station share the same WEP Key and the access point authenticates the station 5 The station connects to the network If the decrypted text does not match the original challenge text the access point and station do not share the same WEP Key then the access point will refuse to authen
48. combination of 0 9 a f or A F Select which of the four keys will be the default See Overview of WEP Parameters on page B 5 for a full explanation of each of these options as defined by the IEEE 802 11 wireless communication standard 6 Click Apply to save your settings Note If you use a wireless computer to configure WEP settings you will be disconnected when you click Apply Reconfigure your wireless adapter to match the new settings or access the wireless access point from a wired computer to make any further changes gt How to Configure WPA Note Not all wireless adapters support WPA Furthermore client software is required on the client Windows XP and Windows 2000 with Service Pack 3 do include the client software that supports WPA Nevertheless the wireless adapter hardware and driver must also support WPA Consult the product document for your wireless adapter and WPA client software for instructions on configuring WPA settings To configure WPA follow these steps 1 Log in at the default LAN address of http 192 168 0 229 with the default user name of admin and default password of password or using whatever LAN address and password you have set up 2 Click Radius Server Settings in the Security menu 3 21 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Radius Server Settings Primary Authentica
49. cscccceeeeeeeeeeeeeeeeeeeeeaeeeeeeeeeeaeeeeenees 3 1 CAG PEON EIT Me acirionaraeiieasisitesiidviaseimst hana sitaunisisnsusnirtinenereiteannauds 3 2 Delauk Factoiy So INNS cc cssrrczactpessaaaicnbeigenenmcateaactaaerdcegte ONT 3 3 Understanding WG102 Wireless Security Options c ccceceeeeeeeeeeeeeeeeeeeeeaeeeeeeeeees 3 4 leeStedliing ihe WOTOZ BCCSSe PON gas sasesdeerutsascenshanussbidiaaaduesnsectcnintanlnaulonuininsas vesusiioests 3 5 How to Log In to the WG102 Using Its Default IP Address cccecssseeeeesesteeeeeeeeaes 3 11 Understanding Basic Wireless Settings cccccccssccesesecteceenteseesceesensesaeeteenaseeesesaneasees 3 12 Understanding WEP WPA Security Options ssscsscsccssiscceescostcasetenevacceiecneussgectecstacaesecenaace 3 14 Before You Change the SSID and WEP Settings ccceecceeeeeeeeeeeeeeeeeeeeeeeeees 3 17 How to Set Up and Test Basic Wireless Connectivity ccccceceeeseeeeeteeeeeneeees 3 18 How to Restrict Wireless Access by MAC Address ccsceeeseeeeeeneeeeeteeeeeneeeees 3 19 ae CRO UF cc WEP ee et eee ment ee eer eres a yer ere rr rer rere Tee 3 20 How ta Contone WPA ae eon ee oa onee r cenant aa ia aI 3 21 Howto Comiiure WPA PSK ienero a eA a r N R 3 23 Contents iii October 2004 Using the Basic IP Settings Options iscsssesessiseissvassvvsvenesseiesssantuvaevstsonsesesaonevstevssenseeene A Chapter 4 Management Using and ener ee asa AERA A AENA E T A E A Vi
50. d the wireless device to the access list Repeat these steps for each additional device you want to add to the list Be sure to click Apply to save your wireless access control list settings Now only devices on this list will be allowed to wirelessly connect to the WG102 How to Configure WEP To configure WEP data encryption follow these steps 1 Log in to the WG102 using its default address of http 192 168 0 229 or at whatever IP address the unit is currently configured Use the default user name of admin and default password of password or whatever LAN address and password you have set up Click the WEP WPA Settings link in the main menu of the WG102 WEPIWPA Settings Wireless LAN Network Authentication Open System vi Data Encryption Passphrase a WPA with Radius Key 1 WPA PSK Figure 3 10 Wireless Settings menu 3 Choose Open System or Shared Key authentication 4 Select encryption strength 5 You can manually or automatically program the four data encryption keys These values must be identical on all PCs and Access Points in your network e Automatic enter a word or group of printable characters in the Passphrase box and click the Generate button The four key boxes will be automatically populated with key values Basic Installation and Configuration 3 20 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point e Manual enter ten hexadecimal digits any
51. d wireless networks to WPA a wireless AP can support both WEP and WPA clients at the same time During the association the wireless AP determines which clients use WEP and which clients use WPA The disadvantage to supporting a mixture of WEP and WPA clients is that the global encryption key is not dynamic This is because WEP based clients cannot support it All other benefits to the WPA clients such as integrity are maintained However a mixed mode supporting WPA and non WPA clients would offer network security that is no better than that obtained with a non WPA network and thus this mode of operation is discouraged B 16 Wireless Networking Basics October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Changes to Wireless Access Points Wireless access points must have their firmware updated to support the following e The new WPA information element To advertise their support of WPA wireless APs send the beacon frame with a new 802 11 WPA information element that contains the wireless AP s security configuration encryption algorithms and wireless security configuration information e The WPA two phase authentication Open system then 802 1x EAP with RADIUS or preshared key TKIP e Michael e AES optional To upgrade your wireless access points to support WPA obtain a WPA firmware update from your wireless AP vendor and upload it to your wireless AP Changes to Wireless Net
52. ded Service Set Identification ESSID is a thirty two character maximum alphanumeric key identifying the wireless local area network Gateway A local device usually a router that connects hosts on a local network to other networks IP Internet Protocol is the main internetworking protocol used in the Internet Used in conjunction with the Transfer Control Protocol TCP to form TCP IP Glossary 3 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point IP Address A four byte number uniquely defining each host on the Internet usually written in dotted decimal notation with periods separating the bytes for example 134 177 244 57 Ranges of addresses are assigned by Internic an organization formed for this purpose ISP Internet service provider Internet Protocol The main internetworking protocol used in the Internet Used in conjunction with the Transfer Control Protocol TCP to form TCP IP LAN A communications network serving users within a limited area such as one floor of a building local area network LAN A communications network serving users within a limited area such as one floor of a building A LAN typically connects multiple personal computers and shared network devices such as storage and printers Although many technologies exist to implement a LAN Ethernet is the most common for connecting personal computers MAC address The Media Access Control address is a u
53. e global encryption key WPA includes a facility the Information Element for the wireless AP to advertise the changed key to the connected wireless clients If configured to implement dynamic key exchange the 802 1x authentication server can return session keys to the access point along with the accept message The access point uses the session keys to build sign and encrypt an EAP key message that is sent to the client immediately after sending the success message The client can then use contents of the key message to define applicable encryption keys In typical 802 1x implementations the client can automatically change encryption keys as often as necessary to minimize the possibility of eavesdroppers having enough time to crack the key in current use B 14 Wireless Networking Basics October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 11g Wireless Access Point Temporal Key Integrity Protocol TKIP WPA uses TKIP to provide important data encryption enhancements including a per packet key mixing function a message integrity check MIC named Michael an extended initialization vector IV with sequencing rules and a re keying mechanism TKIP also provides for the following e The verification of the security configuration after the encryption keys are determined e The synchronized changing of the unicast encryption key for each frame e The determination of a unique starting unicast encryption key for each preshared
54. erence Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point How to Print this Manual To print this manual choose one of the following options Printing a How To Sequence of Steps in the HTML View Use the Print button 5 on the upper right of the toolbar to print the currently displayed topic Using this button when a step by step procedure is displayed will send the entire procedure to your printer you do not have to worry about specifying the correct range of pages Printing a Chapter Use the PDF of This Chapter link at the top right of any page Click PDF of This Chapter link at the top right of any page in the chapter you want to print The PDF version of the chapter you were viewing opens in a browser window Note Your computer must have the free Adobe Acrobat reader installed in order to view and print PDF files The Acrobat reader is available on the Adobe Web site at http www adobe com Click the print icon in the upper left of the window Tip If your printer supports printing two pages on a single sheet of paper you can save paper and printer ink by selecting this feature Printing the Full Manual Use the PDF button in the toolbar at the top right of the browser window Click the PDF button on the upper right of the toolbar The PDF version of the chapter you were viewing opens in a browser window Click the print icon in the upper left of the window Tip If your printer supports pri
55. es e RTS CTS handshake e Beacon generation e Packet fragmentation and reassembly e Short or long preamble e Roaming among access points on the same subnet Autosensing Ethernet Connections with Auto Uplink The WG102 can connect to a standard Ethernet network The LAN interface is autosensing and capable of full duplex or half duplex operation Introduction 2 3 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point The wireless access point incorporates Auto Uplink technology The Ethernet port will automatically sense whether the Ethernet cable plugged into the port should have a normal connection such as to a computer or an uplink connection such as to a switch or hub That port will then configure itself to the correct configuration This feature also eliminates any concerns about crossover cables as Auto Uplink will accommodate either type of cable to make the right connection Compatible and Related NETGEAR Products For a list of compatible products from other manufacturers see the Wireless Ethernet Compatibility Alliance Web site WECA see http www wi fi net The following NETGEAR products work with the WG102 Access Point e WAG511 a b g 108 Mbps Dual Band Wireless PC Card Adapter e WAG311 802 11a g 54 Mbps Wireless PCI Card e WG311T 802 11g 108 Mbps Wireless PCI Card e WG311 802 11g 54 Mbps Wireless PCI Card e WGS5I1IT 802 11g 108 Mbps Wireless CardBus Ada
56. ewing a Lis AR TAA A I ARENE E AET Upgrading the Wireless Access Point PM E aD onfiguration File Management ssssscsccscernn Saving and Retrieving the Configure E err Perec reer E E ee Restoring the WG102 to the Factory Default Settings cies Using the Reset Button to Restore Factory Default Settings matey the ina rator Password haces 5 Advanced ocan Geniai ng jad W Pe AP Settings Enabling Wireless Bridging and Repeating saiisscccssieriansscsecianarecanna Sd ure a WG102 as a Point to Point Bridge ure Multi Point eee Vikatan aes 6 Troubleshooting No lights are lit on the access point ie soa See rea a ee Baten I E A A NR et The Wireless LAN activity light eth not light up E T EE EE AE EE A A The LAN light is not lit a ET AA ia iaiia ni 2 cannot access the incertae the LAN with a aliss caplet compu 6 2 cannot connect to the WG102 to o configurei it enamine Usi ng she Reset Button to Bastar ee Default Ganis AP ERAS AN es ANR 63 Appendix A Specifications Gpaciiicatone tor the PRIS ca csoncccaccceatnnciaadesouianaanescadaiuaunseaiacumuinnteneendactinnemendagizesn AA iv Contents October 2004 Appendix B Wireless Networking Basics Wireless Networking LIVGIVIGW cccrcdcscscndeneiactdaceanlacdabecncadesaoserddsaanadens aa a EIT Infrastructure Mode HTA aE E ener E L I E EE TN Ad Hoc Mode Peer to to Peer a EA EE A R Network Name Extended Service Set Identification ESSI
57. features a robust key generation management system that integrates the authentication and data privacy functions Keys are generated after successful authentication and through a subsequent 4 way handshake between the station and Access Point AP e Data Privacy Encryption Temporal Key Integrity Protocol TKIP is used to wrap WEP in sophisticated cryptographic and security techniques to overcome most of its weaknesses e Data integrity TKIP includes a message integrity code MIC at the end of each plaintext message to ensure messages are not being spoofed Wireless Networking Basics B 11 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point WPA Authentication Enterprise level User Authentication via 802 1x EAP and RADIUS Wired Network with Optional Wireless LAN 802 1x Port Based Network Access Control TCP IP WPA WPA enabled Ports Closed enabled Access Point Until Co RADIUS Server p wireless p using Ma T ic i i re shared ke Jur Reale de p or TCP IP Authentication example pn 802 1x Ports Opened Win Server After VeriSign Authenticated Figure B 3 WPA Overview IEEE 802 1x offers an effective framework for authenticating and controlling user traffic to a protected network as well as providing a vehicle for dynamically varying data encryption keys via EAP from a RADIUS server for example This framework enables using a central
58. front panel on page 2 6 FEATURE FACTORY DEFAULT SETTINGS User Name case sensitive admin Password case sensitive password Operating Mode Access Point Access Point Name netgearxxxxxx where xxxxxx are the last six digits of the wireless access point s MAC address Built in DHCP client DHCP client disabled it uses the default IP address IP Configuration IP Address 192 168 0 229 Subnet Mask 255 255 255 0 Gateway 0 0 0 0 Network Name SSID NETGEAR Broadcast Network Name SSID Enabled 802 11g Radio Frequency Channel 11 WEP WPA Disabled Restricting connectivity based on MAC Disabled Access Control List Time Zone GMT Time Zone Adjust for Daylight Saving Time Disabled SNMP Disabled 3 3 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Understanding WG102 Wireless Security Options Your wireless data transmissions can be received well beyond your walls by anyone with a compatible adapter For this reason use the security features of your wireless equipment The WG102 Access Point provides highly effective security features which are covered in detail in this chapter Deploy the security features appropriate to your needs Wireless Data Security Options Range Up to 300 Foot Radius gt No Security Easy but no security ar MAC Access List No da
59. g the Basic Wireless Se Wireless Security Oy PDF of This Chapter 3 Chapter 3 Basic Installation and Configuration This chapter describes how to set up your 54 Mbps Wireless Access Point WG602 v2 for wireless connectivity to your LAN This basic configuration will enable computers with 802 11b or 802 11g wireless adapters to do such things as connect to the Internet or access printers and files on your LAN Figure 1 1 HTML version of this manual 1 Left Pane Use the left pane to view the Contents Index Search and Favorites tabs To view the HTML version of the manual you must have a version 4 or later browser with JavaScript enabled 2 Toolbar Buttons Use the toolbar buttons across the top to navigate print pages and more The Show in Contents button locates the current topic in the Contents tab Previous Next buttons display the previous or next topic POF The PDF button links to a PDF version of the full manual E The Print button prints the current topic Using this button when a step by step procedure is displayed will send the entire procedure to your printer you do not have to worry about specifying the correct range of pages 3 Right Pane Use the right pane to view the contents of the manual Also each page of the manual includesa PDF of This Chapter link at the top right which links to a PDF file containing just the currently selected chapter of the manual About This Manual October 2004 Ref
60. g two channels that allow the maximum channel separation will decrease the amount of channel cross talk and provide a noticeable performance increase over networks with minimal channel separation The radio frequency channels used in 802 11b g networks are listed in Table B 2 Table B 2 802 11b g Radio Frequency Channels Channel Center Frequency Frequency Spread 1 2412 MHz 2399 5 MHz 2424 5 MHz 2417 MHz 2404 5 MHz 2429 5 MHz 2422 MHz 2409 5 MHz 2434 5 MHz Wireless Networking Basics B 7 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Table B 2 802 11b g Radio Frequency Channels Channel Center Frequency Frequency Spread 4 2427 MHz 2414 5 MHz 2439 5 MHz 5 2432 MHz 2419 5 MHz 2444 5 MHz 6 2437 MHz 2424 5 MHz 2449 5 MHz 7 2442 MHz 2429 5 MHz 2454 5 MHz 8 2447 MHz 2434 5 MHz 2459 5 MHz 9 2452 MHz 2439 5 MHz 2464 5 MHz 10 2457 MHz 2444 5 MHz 2469 5 MHz 11 2462 MHz 2449 5 MHz 2474 5 MHz 12 2467 MHz 2454 5 MHz 2479 5 MHz 13 2472 MHz 2459 5 MHz 2484 5 MHz Note The available channels supported by the wireless products in various countries are different For example Channels 1 to 11 are supported in the U S and Canada and Channels 1 to 13 are supported in Europe and Australia The preferred channel separation between the channels in neighboring wireless networks is 25 MHz 5 channels This
61. hey can determine minimum distance paths between sources and destinations router A device that forwards data between networks An IP router forwards data based on IP source and destination addresses SSID A Service Set Identification is a thirty two character maximum alphanumeric key identifying a wireless local area network For the wireless devices in a network to communicate with each other all devices must be configured with the same SSID Glossary 5 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point This is typically the configuration parameter for a wireless PC card It corresponds to the ESSID in the wireless Access Point and to the wireless network name See also Wireless Network Name and ESSID Subnet Mask Combined with the IP address the IP Subnet Mask allows a device to know which other addresses are local to it and which must be reached through a gateway or router TLS Short for Transport Layer Security TLS is a protocol that guarantees privacy and data integrity between client server applications communicating over the Internet The TLS protocol is made up of two layers The TLS Record Protocol ensures that a connection is private by using symmetric data encryption and ensures that the connection is reliable The second TLS layer is the TLS Handshake Protocol which allows authentication between the server and client and the negotiation of an encryption algorithm and crypt
62. his Radio LAN device is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC Finnish Valmistaja NETGEAR Inc vakuuttaa t ten ett Radio LAN device tyyppinen laite on direktiivin 1999 5 EY oleellisten vaatimusten ja sit koskevien direktiivin muiden ehtojen mukainen Dutch Hierbij verklaart NETGEAR Inc dat het toestel Radio LAN device in overeenstemming is met de essenti le eisen en de andere relevante bepalingen van richtlijn 1999 5 EG Bij deze NETGEAR Inc dat deze Radio LAN device voldoet aan de essenti le eisen en aan de overige relevante bepalingen van Richtlijn 1999 5 EC French Par la pr sente NETGEAR Inc d clare que l appareil Radio LAN device est conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 1999 5 CE Swedish H rmed intygar NETGEAR Inc att denna Radio LAN device st r verensst mmelse med de v sentliga egenskapskrav och vriga relevanta best mmelser som framg r av direktiv 1999 5 EG Danish Undertegnede NETGEAR Inc erkl rer herved at f lgende udstyr Radio LAN device overholder de v sentlige krav og vrige relevante krav i direktiv 1999 5 EF German Hiermit erkl rt NETGEAR Inc dass sich dieser diese dieses Radio LAN device in Ubereinstimmung mit den grundlegenden Anforderungen und den anderen relevanten Vorschriften der Richtlinie 1999 5 EG befindet BMWi Hiermit erkl rt NETGEAR Inc die bereinstimmung des Ger tes
63. int Select this only if this WG102 is the master for a group of bridge mode wireless stations Then all traffic is sent to this master rather than directly among each other In addition you have the option of enabling client associations with this WG102 For multi point bridge mode you must enter the MAC addresses of the other access points in the fields provided The other bridge mode wireless stations must be set to Point to Point Bridge mode using the MAC address of this WG102 as the Remote MAC Address Use WEP to protect this traffic e Repeater with Wireless Client Association Selected repeater mode to send all traffic to the remote AP For repeater mode you must enter the MAC address of the remote parent access point and optionally enter the address of the child access point Inrepeater mode you do not have the option of disabling client associations with this WG102 These features are discussed below How to Configure a WG102 as a Point to Point Bridge AP in Point to Point AP in Bridge Mode Point to Point Bridge Mode Hub or Switch So pP m i ICI Coc LAN CAN T Segment 2 Segment 1 Figure 5 4 Point to Point Bridge 1 Configure the WG102 AP1 on LAN Segment 1 in Point to Point Bridge mode 5 4 Advanced Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 2 Configure
64. into a file on your PC click Save As and save the file to a disk drive Viewing General Log Station and Statistical Information The General information screen provides a summary of the current WG102 configuration settings From the main Menu of the browser interface click General to view the System Status screen shown below General Access Point Information Access Point Name netgear501523 MAC Address 00 0F 85 50 15 23 Country Region Unspecified Firmware Version VO 1_02 Access Point Mode Access Point Current IP Settings IP Address 192 168 0 229 Subnet Mask 255 255 255 0 Default Gateway 192 168 0 1 DHCP Client DHCP Server unreachable resetting back to Default IP Current Wireless Settings Operating Mode Auto 802 119 802 11b Wireless Network Name SSID NETGEAR Channel Frequency 11 2 462GHz WEP WPA None Figure 4 2 Wireless Access Point Status screen This screen shows the following parameters 4 2 Management October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Table 4 1 General Information Fields Field Access Point Information Access Point Name NetBIOS name MAC Address Country Region Firmware Version Access Point Mode Current IP Settings IP Address Subnet Mask Default Gateway DHCP Client Description The default name may be changed if desired Displays the Media Access Control address MAC address of
65. is released by NETGEAR Upgrade files can be downloaded from the NETGEAR Web site If the upgrade file is compressed ZIP file you must first extract the image IMG file before sending it to the wireless access point The upgrade file can be sent using your browser Note The Web browser used to upload new firmware into the WG102 must support HTTP uploads such as Microsoft Internet Explorer 6 0 or above or Netscape Navigator 4 78 or above Management 4 5 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 1 Download the new software file from NETGEAR save it to your hard disk and unzip it 2 From the main menu Management section click the Upgrade Firmware link to display the screen above 3 Inthe Upgrade Firmware menu click the Browse button and browse to the location of the image IMG upgrade file 4 Click Upload When the upload completes your wireless access point will automatically restart The upgrade process typically takes about one minute In some cases you may need to reconfigure the wireless access point after upgrading Configuration File Management The WG102 Access Point settings are stored in the wireless access point in a configuration file This file can be saved backed up to a user s computer retrieved restored from the user s computer or cleared to factory default settings From the main menu Management heading click the Backup Restore Setti
66. is setting d Connect the power adapter to the wireless access point and plug the power adapter in to a power outlet The PWR LAN and WLAN lights should light up 4 VERIFY WIRELESS CONNECTIVITY Using a computer with an 802 11b or 802 11g wireless adapter with the correct wireless settings needed to connect to the WG102 SSID WEP WPA MAC ACL etc verify connectivity by using a browser such as Netscape or Internet Explorer to browse the Internet or check for file and printer access on your network Note If you are unable to connect see Chapter 6 Troubleshooting Basic Installation and Configuration 3 10 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point How to Log In to the WG102 Using Its Default IP Address 1 192 168 0 229 is the default IP address of your access point The WG102 is set by default the DHCP client to be disabled Note The computer you are using to connect to the WG102 should be configured with an IP address that starts with 192 168 0 x and a Subnet Mask of 255 255 255 0 Open a Web browser such as Internet Explorer or Netscape Navigator Connect to the WG102 by entering its default address of http 192 168 0 229 into your browser http 192 166 0 229 A login window like the one shown below opens Connect to 192 168 0 229 PR FA WG102 User name IE admin Password CECTETETS C Remember my password Figure 3 6 Logi
67. ivity Log Window 2004 Jan 1 00 00 00 GMT AP activated 2004 Jan 1 00 01 10 GMT 00 60 B3 6F 3F 97 re associated 2004 Jan 1 00 01 10 GMT 00 60 B3 6F 3F 97 disassociated 2004 Jan 1 02 51 42 GMT 00 0 35 41 77 45 authenticated 2004 Jan 1 02 51 42 GMT 00 0E 35 41 77 45 associated 2004 Jan 1 03 02 38 GMT 00 09 5B 42 73 E3 authenticated 2004 Jan 1 03 02 38 GMT 00 09 5B 42 73 E3 associated 2004 Jan 1 03 02 56 GMT 00 09 5B 42 73 E3 disassociated 2004 Jan 1 03 07 26 GMT 00 0E 35 24 75 D3 authenticated 2004 Jan 1 03 07 26 GMT 00 0E 35 24 75 D3 associated 2004 Jan 1 03 15 40 GMT 00 0 35 41 77 45 disconnected Idle Timeout m C Enable SysLog Syslog Server IP Address I Port Figure 4 1 Syslog and Activity Log information Management 4 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Enable the SysLog option if you have a SysLog server on your LAN If enabled you must enter the IP address of your SysLog server and the port number your SysLog server is configured to use e SysLog Server IP address The access point will send all the SysLog to the specified IP address if SysLog option is enabled Default 0 0 0 0 e Port The port number configured in the SysLog server on your LAN Default 514 The Activity Log Window displays the Access Point system activity You may click Refresh to update the display or Click Save As To save the log contents
68. k WLAN Off Green Blink Wireless LAN Link Activity Indicator Indicates no wireless link activity Wireless link activity 2 6 Introduction October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 11g Wireless Access Point NEED PRODUCT PHOTO OR ILLUSTRATION Figure 2 2 WG102 rear panel e Detachable Antenna The WG102 provides one detachable antenna e Restore to Factory Defaults Button The restore to default button located between the Ethernet RJ 45 connector and the power socket restores the WG102 to the factory default settings e RJ 45 Ethernet Port Use the WG102 Ethernet RJ 45 port to connect to an Ethernet LAN through a device such as a hub switch router or POE switch e Power Socket This socket connects to the WG102 12V DC 1 A power adapter Introduction 2 7 October 2004 Chapter 3 Basic Installation and Configuration This chapter describes how to set up your NETGEAR WG102 ProSafe 802 11g Wireless Access Point for wireless connectivity to your LAN This basic configuration will enable computers with 802 11b or 802 11g wireless adapters to do such things as connect to the Internet or access printers and files on your LAN Note Indoors computers can connect over 802 11g wireless networks at ranges _ gt of several hundred feet or more This distance can allow for others outside your area to access your network It is important to take appropriate steps to secu
69. ll lose your wireless connection when you click Apply You must then access the wireless access point from a wired computer or from a wireless computer which is on the access control list to make any further changes gt 2 From the Security menu click the Access Control link to display the Access Control List menu shown below Access Control List Turn Access Control On Select Access Control Database Local MAC Address Database v Local MAC Address Database RADIUS MAC Address Database Local MAC Address Database Trusted Wireless Stations MAC Address Available Wireless Stations Station ID MAC Address Add New Station Manually MAC Address H Figure 3 9 Access Control List menu 3 Select the Turn Access Control On check box 3 19 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 4 5 Choose to use the local MAC address database stored on the access point or use the RADIUS MAC address database stored on a RADIUS server e If you choose the RADIUS MAC Address Database you must configure the RADIUS Server Settings first e Ifyou choose Local MAC Address Database either select from the list of available wireless cards the WG102 has found in your area or enter the MAC address and device name for a device you plan to use You can usually find the MAC address printed on the wireless adapter Click Add to ad
70. matically change to the access point which has the least interference or best performance This capability is called roaming e Broadcast Wireless Network Name SSID This field lets you turn off the SSID broadcast If you turn off the SSID broadcast only stations that know the SSID will connect Disabling SSID broadcast somewhat hampers the wireless network discovery feature of some products The default is to enable SSID broadcast e Operating Mode Select the desired wireless operating mode The options are Auto 802 11g 802 11b Both 802 11g and 802 11b wireless stations can be used This is the default 802 11g Only Only 802 11g wireless stations can be used This is required for 108 Mbps data rate operation 802 11b Only All 802 11b wireless stations can be used 802 11g wireless stations can still be used if they can operate in 802 11b mode e Channel This field identifies which operating frequency will be used It should not be necessary to change the wireless channel unless you notice interference problems or setting up the WG102 near another access point See Wireless Channels on page B 7 for more information on wireless channels Access points use a fixed channel You can select the channel used This allows you to choose a channel which provides the least interference and best performance In the USA and Canada 11 channels are available Note Channel 6 is required for 108 Mbps data rate If using mul
71. n interference is detected The 802 11g auto rate sensing rates are 1 2 5 5 6 9 12 18 24 36 48 and 54 Mbps The 802 11 standard is also called Wireless Ethernet or Wi Fi by the Wireless Ethernet Compatibility Alliance WECA see hitp www wi fi net an industry standard group promoting interoperability among 802 11 devices The 802 11 standard offers two methods for configuring a wireless network ad hoc and infrastructure Infrastructure Mode With a wireless Access Point you can operate the wireless LAN in the infrastructure mode This mode provides wireless connectivity to multiple wireless network devices within a fixed range or area of coverage interacting with wireless nodes via an antenna In the infrastructure mode the wireless access point converts airwave data into wired Ethernet data acting as a bridge between the wired LAN and wireless clients Connecting multiple Access Points via a wired Ethernet backbone can further extend the wireless network coverage As a mobile computing device moves out of the range of one access point it moves into the range of another As a result wireless clients can freely roam from one Access Point domain to another and still maintain seamless network connection Wireless Networking Basics B 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Ad Hoc Mode Peer to Peer Workgroup In an ad hoc network computers are brought together as
72. n window Log in use the default user name of admin and default password of password Once you have entered your access point name your Web browser should automatically find the WG102 Access Point and display the home page as shown in Login result WG102 home page on page 3 7 3 11 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Understanding Basic Wireless Settings To configure the wireless settings of your wireless access point click the Wireless Settings link in the Basic section of the main menu of the browser interface The Basic Wireless Settings menu will appear as shown below Wireless Settings Country Region Select Wireless LAN M Turn Radio On Wireless Network Name SSID NETGEAR Broadcast Wireless Network Name SSID yes ONo Operating Mode Auto 11g b 108Mbps Channel Frequency 11 2 462GHz Data Rate Best Output Power Full x Figure 3 7 Basic Wireless Settings menu The Basic Wireless Settings menu options are discussed below Country Region This field identifies the region where the WG102 can be used It may not be legal to operate the wireless features of the wireless access point in a region other than one of those identified in this field There is no default country domain and the channel is set to 11 Unless a country domain is selected the channel cannot be changed Turn Radio
73. ncryption A transmitting 802 11 device encrypts the data portion of every packet it sends using a configured WEP Key The receiving device decrypts the data using the same WEP Key For authentication purposes the wireless network uses Shared Key Authentication Note Some 802 11 access points also support Use WEP for Authentication Only Shared Key Authentication without data encryption Wireless Networking Basics B 5 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Key Size The IEEE 802 11 standard supports two types of WEP encryption 40 bit and 128 bit The 64 bit WEP data encryption method allows for a five character 40 bit input Additionally 24 factory set bits are added to the forty bit input to generate a 64 bit encryption key The 24 factory set bits are not user configurable This encryption key will be used to encrypt decrypt all data transmitted via the wireless interface Some vendors refer to the 64 bit WEP data encryption as 40 bit WEP data encryption since the user configurable portion of the encryption key is 40 bits wide The 128 bit WEP data encryption method consists of 104 user configurable bits Similar to the forty bit WEP data encryption method the remaining 24 bits are factory set and not user configurable Some vendors allow passphrases to be entered instead of the cryptic hexadecimal characters to ease encryption key entry 128 bit encryption is stronger than 4
74. needed thus there is no structure or fixed points to the network each node can generally communicate with any other node There is no Access Point involved in this configuration This mode enables you to quickly set up a small wireless workgroup and allows workgroup members to exchange data or share printers as supported by Microsoft networking in the various Windows operating systems Some vendors also refer to ad hoc networking as peer to peer group networking In this configuration network packets are directly sent and received by the intended transmitting and receiving stations As long as the stations are within range of one another this is the easiest and least expensive way to set up a wireless network Network Name Extended Service Set Identification ESSID The Extended Service Set Identification ESSID is one of two types of Service Set Identification SSID In an ad hoc wireless network with no access points the Basic Service Set Identification BSSID is used In an infrastructure wireless network that includes an access point the ESSID is used but may still be referred to as SSID An SSID is a thirty two character maximum alphanumeric key identifying the name of the wireless local area network Some vendors refer to the SSID as network name For the wireless devices in a network to communicate with each other all devices must be configured with the same SSID The ESSID is usually broadcast in the air from an access point
75. ngs link to bring up the menu shown below Backup Restore Settings Back up a copy of the current settings to a file Restore saved settings from a file Revert to factory default settings Figure 4 4 Settings Backup menu The three options displayed are described in the following sections 4 6 Management October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Saving and Retrieving the Configuration The Backup Restore Settings menu allows you to save or retrieve a file containing your wireless access point s configuration settings To save your settings click the Save button Your browser will extract the configuration file from the wireless access point and prompts you for a location on your computer to store the file You can give the file a meaningful name at this time such as WG102 cfg To restore your settings from a saved configuration file enter the full path to the file on your computer or click the Browse button to locate the file When you have located it click the Retrieve button to upload the file After completing the upload the WG102 will reboot automatically Restoring the WG102 to the Factory Default Settings It is sometimes desirable to restore the wireless access point to the factory default settings This can be done by using the Restore function which restores all factory settings After a restore the wireless access point s password will be password the
76. nique 48 bit hardware address assigned to every network interface card Usually written in the form 01 23 45 67 89 ab Mbps Megabits per second MD5 MDS creates digital signatures using a one way hash function meaning that it takes a message and converts it into a fixed string of digits also called a message digest When using a one way hash function one can compare a calculated message digest against the message digest that is decrypted with a public key to verify that the message hasn t been tampered with This comparison is called a hashcheck MDI MDIX In cable wiring the concept of transmit and receive are from the perspective of the PC which is wired as a Media Dependant Interface MDI In MDI wiring a PC transmits on pins 1 and 2 At the hub switch router or access point the perspective is reversed and the hub receives on pins and 2 This wiring is referred to as Media Dependant Interface Crossover MDI X See also Auto Uplink NAT A technique by which several hosts share a single IP address for access to the Internet 4 Glossary October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point NetBIOS Network Basic Input Output System An application programming interface API for sharing services and information on local area networks LANs Provides for communication between stations of a network where each station is given a name These names are alphanumeric names 16 cha
77. nt How to Set Up and Test Basic Wireless Connectivity Follow the instructions below to set up and test basic wireless connectivity Once you have established basic wireless connectivity you can enable security settings appropriate to your needs 1 Log in to the WG102 using its default address of hitp 192 168 0 229 or at whatever IP address the unit is currently configured Use the default user name of admin and default password of password or whatever password you set up Click the Wireless Settings link in the main menu of the WG102 Choose a suitable descriptive name for the wireless network name SSID In the SSID box enter a value of up to 32 alphanumeric characters The default SSID is NETGEAR Note The SSID of any wireless access adapters must match the SSID you configure in the NETGEAR WG102 ProSafe 802 11g Wireless Access Point If they do not match you will not get a wireless connection to the WG102 Select the Country Region in which the wireless interface will operate Set the Channel It should not be necessary to change the wireless channel unless you notice interference problems or are near another wireless access point Select a channel that is not being used by any other wireless networks within several hundred feet of your wireless access point For more information on the wireless channel frequencies see Wireless Channels on page B 7 For initial configuration and testing leave the Wireless Card Acce
78. ntegrity Protocol TKIP Michael message integrity code MIC AES Support to be phased in e Support for a Mixture of WPA and WEP Wireless Clients but mixing WEP and WPA is discouraged These features are discussed below WPA addresses most of the known WEP vulnerabilities and is primarily intended for wireless infrastructure networks as found in the enterprise This infrastructure includes stations access points and authentication servers typically RADIUS servers The RADIUS server holds or has access to user credentials for example user names and passwords and authenticates wireless users before they gain access to the network The strength of WPA comes from an integrated sequence of operations that encompass 802 1X EAP authentication and sophisticated key management and encryption techniques Its major operations include e Network security capability determination This occurs at the 802 11 level and is communicated through WPA information elements in Beacon Probe Response and Re Association Requests Information in these elements includes the authentication method 802 1X or Pre shared key and the preferred cipher suite WEP TKIP or AES B 10 Wireless Networking Basics October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point The primary information conveyed in the Beacon frames is the authentication method and the cipher suite Possible authentication methods include
79. nting two pages on a single sheet of paper you can save paper and printer ink by selecting this feature About This Manual 1 3 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 1 4 About This Manual October 2004 Chapter 2 Introduction This chapter introduces the NETGEAR WG102 ProSafe 802 11g Wireless Access Point Minimal prerequisites for installation are presented in System Requirements on page 2 4 About the NETGEAR WG102 ProSafe 802 11g Wireless Access Point The NETGEAR WG102 ProSafe 802 11g Wireless Access Point is the basic building block of a wireless LAN infrastructure It provides connectivity between Ethernet wired networks and radio equipped wireless notebook systems desktop systems print servers and other devices The WG102 provides wireless connectivity to multiple wireless network devices within a fixed range or area of coverage interacting with a wireless network interface card NIC via an antenna Typically an individual in building access point provides a maximum connectivity area with about a 300 foot radius The NETGEAR WG102 ProSafe 802 11g Wireless Access Point can support a small group of users in a range of several hundred feet Most access points are rated between 30 50 users simultaneously The NETGEAR WG102 ProSafe 802 11g Wireless Access Point acts as a bridge between the wired LAN and wireless clients Connecting multiple WG102 Access Points via
80. ographic keys before data is transmitted or received Based on Netscape s SSL 3 0 TLS supercedes and is an extension of SSL TLS and SSL are not interoperable UTP Unshielded twisted pair is the cable used by 1OBASE T and 100BASE Tx Ethernet networks WAN A long distance link used to extend or connect remotely located local area networks The Internet is a large WAN WEP Wired Equivalent Privacy is a data encryption protocol for 802 11b wireless networks All wireless nodes and access points on the network are configured with a 64 bit or 128 bit Shared Key for data encryption wide area network WAN A long distance link used to extend or connect remotely located local area networks The Internet is a large WAN Wi Fi A trade name for the 802 11b wireless networking standard given by the Wireless Ethernet Compatibility Alliance WECA see http www wi fi net an industry standards group promoting interoperability among 802 11b devices Windows Internet Naming Service WINS Windows Internet Naming Service is a server process for resolving Windows based computer names to IP addresses If a remote network contains a WINS server your Windows PCs can gather information from that WINS server about its local hosts This allows your PCs to browse that remote network using the Windows Network Neighborhood feature 6 Glossary October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point WINS
81. on Connect to it and check its settings If you cannot connect to it check the LAN and power connections If the WG102 is configured correctly check your Internet connection DSL Cable modem etc to make sure that it is working correctly Try again Using the Reset Button to Restore Factory Default Settings The Reset button see WG102 rear panel on page 2 7 has two functions Troubleshooting 6 3 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point e Reboot When pressed and released quickly the WG102 will reboot restart e Reset to Factory Defaults This button can also be used to clear ALL data and restore ALL settings to the factory default values To clear all data and restore the factory default values 1 Power off the WG102 and power it back on 2 Use something with a small point such as a pen to press the Reset button in and hold it in for at least 5 seconds 3 Release the Reset button The factory default configuration has now been restored and the WG102 is ready for use 6 4 Troubleshooting October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Appendix A Specifications This appendix provides technical specifications for the NETGEAR WG102 ProSafe 802 11g Wireless Access Point Specifications for the WG102 Parameter NETGEAR WG102 ProSafe 802 11g Wireless Access Point Network Management
82. ort WPA WPA with RADIUS User authentication is implemented using RADIUS servers For a full explanation of WPA see WPA Wireless Security on page B 8 Authentication Access Control Radius Server Login Requirements You will also have to fill in the following Radius server settings e Primary Radius Server Name IP Address This field is required Enter the name or IP address of the Radius Server on your LAN e Secondary Radius Server Name IP Address This field is optional Enter the name or IP address of the Secondary Radius Server on your LAN e Radius Port Enter the port number used for connections to the Radius Server e Radius Shared Key Enter the desired value for the Radius shared key This key enables the WG102 to log in to the Radius server and must match the value used on the Radius server Radius Accounting Option The Radius Accounting option can be enabled so that you can track various information like who connected to the network when they connected how long they were connected how much network traffic they generated and so on Basic Installation and Configuration 3 16 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Before You Change the SSID and WEP Settings Take the following steps For a new wireless network print or copy this form and fill in the configuration parameters For an existing wireless network the person who set up or is respon
83. our DHPC server SNMP Support Support for Simple Network Management Protocol SNMP Management Information Base MIB management Key Features The NETGEAR WG102 provides solid functionality including these features Multiple Operating Modes Wireless Access Point Operates as a standard 802 11 Point to Point Bridge In this mode the WG102 only communicates with another bridge mode wireless station You must enter the MAC address physical address of the other bridge mode wireless station in the field provided WEP should be used to protect this communication Point to Multi Point Bridge Select this only if this WG102 is the Master for a group of bridge mode wireless stations The other bridge mode wireless stations must be set to Point to Point Bridge mode using this WG102 s MAC address They then send all traffic to this Master rather than communicate directly with each other WEP should be used to protect this traffic Wireless Repeater In this half duplex mode the WG102 only communicates with another repeater mode wireless station You must enter the MAC address of both adjacent repeater mode wireless stations in the fields provided WEP should be used to protect this communication 2 2 Introduction October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point e Upgradeable Firmware Firmware is stored in a flash memory and can be upgraded easily using only
84. ower Full v Figure 3 5 Basic Wireless Settings menu c Configure the wireless interface for wireless access See the online help or the Understanding Basic Wireless Settings topic of this Reference Manual for full instructions Note You must set the Country Region It may not be legal to operate the wireless access point in a region other than one of those identified in this field Now that you have finished the setup steps you are ready to deploy the WG102 in your network If needed you can now reconfigure the computer you used in step 1 back to its original TCP IP settings 3 DEPLOY THE WG102 ACCESS POINT a Disconnect the WG102 and position it where you will deploy it The best location is elevated such as wall mounted or on the top of a cubicle at the center of your wireless coverage area and within line of sight of all the mobile devices b Lift the antenna on either side so that they are vertical Note Consult the antenna positioning and wireless mode configuration information in the Advanced Configuration chapter of the Reference Manual c Connect an Ethernet cable from your WG102 Access Point to a LAN port on your router switch or hub 3 9 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Note By default WG102 is set to with the DHCP client disabled If your network uses dynamic IP addresses you will need to change th
85. pport if the Wireless LAN activity light remains off The LAN light is not lit There is a hardware connection problem Check these items Make sure the cable connectors are securely plugged in at the access point and the network device hub switch or router A switch hub or router must be installed between the access point and the Ethernet LAN or broadband modem Make sure the connected device is turned on Be sure the correct cable is used Use a standard Category 5 Ethernet patch cable If the network device has Auto Uplink MDI MDIX ports you can use either a crossover cable or a normal patch cable I cannot access the Internet or the LAN with a wireless capable computer There is a configuration problem Check these items You may not have restarted the computer with the wireless adapter to have TCP IP changes take effect Restart the computer The computer with the wireless adapter may not have the correct TCP IP settings to communicate with the network Restart the computer and check that TCP IP is set up properly for that network The usual setting for Windows the Network Properties is set to Obtain an IP address automatically The access point s default values may not work with your network Check the access point default configuration against the configuration of other devices in your network 6 2 Troubleshooting October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless
86. ps using direct sequence spread spectrum DSSS technology and operating in the unlicensed radio spectrum at 2 5GHz 802 11g is backwards compatible with 802 11b ADSL Short for asymmetric digital subscriber line a technology that allows data to be sent over existing copper telephone lines at data rates of from 1 5 to 9 Mbps when receiving data known as the downstream rate and from 16 to 640 Kbps when sending data known as the upstream rate ADSL requires a special ADSL modem ADSL is growing in popularity as more areas around the world gain access ARP Address Resolution Protocol a TCP IP protocol used to convert an IP address into a physical address called a DLC address such as an Ethernet address A host wishing to obtain a physical address broadcasts an ARP request onto the TCP IP network The host on the network that has the IP address in the request then replies with its physical hardware address There is Glossary 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point also Reverse ARP RARP which can be used by a host to discover its IP address In this case the host broadcasts its physical address and a RARP server replies with the host s IP address Auto Uplink Auto Uplink technology also called MDI MDIX eliminates the need to worry about crossover vs straight through Ethernet cables Auto Uplink will accommodate either type of cable to make the right connection
87. pter e WG511 802 11g 54 Mbps Wireless CardBus Adapter e WGI111 801 11g 54 Mbps Wireless Bridge System Requirements Before installing the WG102 make sure your system meets these requirements e A 10 100 Mbps Local Area Network device such as a hub or switch e The Category 5 UTP straight through Ethernet cable with RJ 45 connector included in the package or one like it e A 100 240 V 50 60 HZ AC power source e A Web browser for configuration such as Microsoft Internet Explorer 6 0 or above or Netscape Navigator 4 78 or above e At least one computer with the TCP IP protocol installed e 802 11g or 802 11b compliant devices such as the NETGEAR WGS511 Wireless Adapter 2 4 Introduction October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point What s In the Box The product package should contain the following items NETGEAR WG102 ProSafe 802 11g Wireless Access Point Power adapter and cord 12V DC 1 A Straight through Category 5 Ethernet cable WG102 802 11g ProSafe Wireless Access Point Installation Guide Resource CD for the NETGEAR WG102 ProSafe 802 11g Wireless Access Point This Reference Manual for the NETGEAR WG102 ProSafe 802 11g Wireless Access Point Support Registration card Contact your reseller or customer support in your area if there are any missing or damaged parts You can refer to the Support Information Card for the telephone number of customer support in
88. r send an accept or reject message to the access point 6 The access point sends an EAP success packet or reject packet to the client 7 Ifthe authentication server accepts the client then the access point will transition the client s port to an authorized state and forward additional traffic The important part to know at this point is that the software supporting the specific EAP type resides on the authentication server and within the operating system or application supplicant software on the client devices The access point acts as a pass through for 802 1x messages which means that you can specify any EAP type without needing to upgrade an 802 1x compliant access point As a result you can update the EAP authentication type to such devices as token cards Smart Cards Kerberos one time passwords certificates and public key authentication or as newer types become available and your requirements for security change WPA Data Encryption Key Management With 802 1x the rekeying of unicast encryption keys is optional Additionally 802 11 and 802 1x provide no mechanism to change the global encryption key used for multicast and broadcast traffic With WPA rekeying of both unicast and global encryption keys is required For the unicast encryption key the Temporal Key Integrity Protocol TKIP changes the key for every frame and the change is synchronized between the wireless client and the wireless access point AP For th
89. racters in length netmask Combined with the IP address the IP Subnet Mask allows a device to know which other addresses are local to it and which must be reached through a gateway or router A number that explains which part of an IP address comprises the network address and which part is the host address on that network It can be expressed in dotted decimal notation or as a number appended to the IP address For example a 28 bit mask starting from the MSB can be shown as 255 255 255 192 or as 28 appended to the IP address Network Address Translation A technique by which several hosts share a single IP address for access to the Internet packet A block of information sent over a network A packet typically contains a source and destination network address some protocol and length information a block of data and a checksum Point to Point Protocol PPP A protocol allowing a computer using TCP IP to connect directly to the Internet RADIUS Short for Remote Authentication Dial In User Service RADIUS is an authentication system Using RADIUS you must enter your user name and password before gaining access to a network This information is passed to a RADIUS server which checks that the information is correct and then authorizes access Though not an official standard the RADIUS specification is maintained by a working group of the IETF RIP A protocol in which routers periodically exchange information with one another so that t
90. range A short transmit preamble gives better performance Long is the default 5 2 Advanced Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point AP Settings Enabling Wireless Bridging and Repeating The WG102 Access Point lets you build large bridged wireless networks Advanced Access Point Settings Access Point Mode JEnable Wireless Bridging and Repeating Wireless Point to Point Bridge Enable Wireless Client Association Remote MAC Address Wireless Point to Multi Point Bridge Enable Wireless Client Association Remote MAC Address 1 I L Remote MAC Address 2 Remote MAC Address 3 Remote MAC Address 4 Repeater with Wireless Client Association Remote MAC Address 1 HE ok H Remote MAC Address 2 5 I Remote MAC Address3 Remote MAC Address 4 E Figure 5 3 Advanced Wireless Settings Access Point Mode settings Examples of wireless bridged configurations are Point to Point Bridge In this mode the WG102 will communicate with another bridge mode wireless station In addition you have the option of enabling client associations with this WG102 You must enter the MAC address of the other bridge mode wireless station in the field provided Use WEP to protect this communication e Miulti Point Bridge Advanced Configuration 5 3 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Po
91. re your network from unauthorized access The WG102 Access Point provides highly effective security features which are covered in detail in Chapter 3 Configuring Your Wireless Network Deploy the security features appropriate to your needs You need to prepare these three things before you can establish a connection through your wireless access point e A location for the WG102 that conforms to the Observing Placement and Range Guidelines below e The wireless access point connected to your LAN through a device such as a hub switch router or Cable DSL gateway e One or more computers with properly configured 802 11b or 802 11g wireless adapters Observing Placement and Range Guidelines The operating distance or range of your wireless connection can vary significantly based on the physical placement of the wireless access point The latency data throughput performance and notebook power consumption of wireless adapters also vary depending on your configuration choices Basic Installation and Configuration 3 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point gt Note Failure to follow these guidelines can result in significant performance degradation or inability to wirelessly connect to the WG102 For complete performance specifications see Appendix A Specifications For best results place your wireless access point Near the center of the
92. ress of AP1 Advanced Configuration 5 5 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Configure the WG102 AP3 on LAN 3 in Point to Point Bridge mode with the Remote MAC Address of AP1 2 Verify the following parameters for all access points e Verify that the LAN network configuration the WG102 Access Points are configured to operate in the same LAN network address range as the LAN devices e Only one AP is configured in Point to Multi Point Bridge mode and all the others are in Point to Point Bridge mode e All APs must be on the same LAN That is all the APs LAN IP address must be in the same network e Ifusing DHCP all WG102 Access Points should be set to Obtain an IP address automatically DHCP Client in the IP Address Source portion of the Basic IP Settings menu e All WG102 Access Points use the same SSID Channel authentication mode if any and encryption in use e All Point to Point APs must have AP2 s MAC address in its Remote AP MAC address field 3 Verify connectivity across the LANs e A computer on any LAN segment should be able to connect to the Internet or share files and printers with any other PCs or servers connected to any of the three LAN segments e Wireless stations will not be able to connect to the WG102 Access Points in the illustration above If you require wireless stations to access any lan segment you can additional WG102 Acce
93. ress to Receive Traps Enter the IP address of the SNMP manager to receive traps sent from the wireless Access Point If you don t want Traps to be sent leave this at the default value of 0 0 0 0 3 Be sure to click Apply to save your changes Management 4 9 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 4 10 Management October 2004 Chapter 5 Advanced Configuration This chapter describes how to configure the advanced features of your NETGEAR WG102 ProSafe 802 11g Wireless Access Point e Hotspot Settings Set up advanced wireless LAN parameters e Wireless Settings Set up advanced wireless LAN parameters e Access Point Settings Enable wireless bridging and repeating These features can be found under the Advanced heading in the main menu Hotspot Settings If you want the AP to capture and re direct all HTTP TCP port 80 requests use this feature For example a hotel might want all wireless connections to go to its server to start a billing transaction Hotspot Settings C Enable HTTP Redirect URL Figure 5 1 Hotspot Settings screen Enter the URL of the Web server where you wish to redirect HTTP requests Advanced Configuration 5 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Configuring Advanced Wireless Settings The default advanced wireless LAN parameter settings usually work well
94. s Wireless Unicast Packets Broadcast Packets Multicast Packets Total Packets Total Bytes Received 0 0 Received 0 0 0 0 0 Transmitted 0 0 Transmitted 0 0 0 09 0 Figure 4 3 Wireless Access Point Status screen Table 4 1 Statistics Fields Field Description Wired Ethernet Received Transmitted Packets The number of packets sent since the WG102 was restarted Bytes The number of bytes sent since the WG102 was restarted Wireless Unicast Packets Broadcast Packets Multicast Packets Total Packets Total Bytes Received Transmitted The Unicast packets sent since the WG102 was restarted The Broadcast packets sent since the WG102 was restarted The Multicast packets sent since the WG102 was restarted The Wireless packets sent since the WG102 was restarted The Wireless bytes sent since the WG102 was restarted Refresh button Click the Refresh button to update the statistics on this screen Management October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Viewing a List of Attached Devices The Available Wireless Station List contains a table of all IP devices associated with the wireless access point in the wireless network defined by the Wireless Network Name SSID From the main menu of the browser interface under the Information heading click the Available Wireless Station List link to view the list shown below
95. s e Passphrase These characters are case sensitive Enter a word or group of printable characters in the Passphrase box and click the Generate button Note Not all wireless adapters support passphrase key generation e Manual These values are not case sensitive 64 bit WEP enter 10 hexadecimal digits any combination of 0 9 a f or A F 128 bit WEP enter 26 hexadecimal digits any combination of 0 9 a f or A F 152 bit WEP enter 32 hexadecimal digits any combination of 0 9 a f or A F Enable Wireless Security Separator The associated wireless clients will not be able to communicate with each other if this feature is enabled The default setting is Disable Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Table 3 1 Basic Wireless Security Options Field Description WPA PSK Wi Fi WPA Pre Shared Key uses a pre shared key to perform the authentication and Protected Access generate the initial data encryption keys Then it dynamically varies the encryption Pre Shared Key key For a full explanation of WPA see WPA Wireless Security on page B 8 Note Not all wireless adapters support WPA Furthermore client software is required on the client Windows XP and Windows 2000 with Service Pack 3 do include the client software that supports WPA Nevertheless the wireless adapter hardware and driver must also supp
96. s points and all of the 802 11 client adapters on the network must have the same WEP settings Note Whatever keys you enter for an AP you must also enter the same keys for the client adapter in the same order In other words WEP key 1 on the AP must match WEP key 1 on the client adapter WEP key 2 on the AP must match WEP key 2 on the client adapter and so on Note The AP and the client adapters can have different default WEP Keys as long as the keys are in the same order In other words the AP can use WEP key 2 as its default key to transmit while a client adapter can use WEP key 3 as its default key to transmit The two devices will communicate as long as the AP s WEP key 2 is the same as the client s WEP key 2 and the AP s WEP key 3 is the same as the client s WEP key 3 Wireless Channels The wireless frequencies used by 802 11b g networks are discussed below IEEE 802 11b g wireless nodes communicate with each other using radio frequency signals in the ISM Industrial Scientific and Medical band between 2 4 GHz and 2 5 GHz Neighboring channels are 5 MHz apart However due to spread spectrum effect of the signals a node sending signals using a particular channel will utilize frequency spectrum 12 5 MHz above and below the center channel frequency As a result two separate wireless networks using neighboring channels for example channel 1 and channel 2 in the same general vicinity will interfere with each other Applyin
97. sable Figure 3 8 Wireless Security Settings e Enable Wireless Client Security Separator The associated wireless clients will not be able to communicate with each other if this feature is enabled The default setting is disabled Basic Installation and Configuration 3 14 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point The Wireless LAN options are explained in the following table Table 3 1 Basic Wireless Security Options Field Description Network Authentication You can select the following network authentication options e Open System the WG102 does not perform any authentication However if the 802 1x option is configured authentication of connections can be performed by a RADIUS server e Shared this is for shared key authentication The SSID and data are encrypted Encryption Strength You can select the following data encryption options Disabled e 64 128 or 152 bit WEP With Open System Authentication and 64 128 or 152 bit WEP Data Encryption the WG102 does perform data encryption but does not perform any authentication Security Encryption WEP Keys If WEP is enabled you can manually or automatically program the four data encryption keys These values must be identical on all PCs and access points in your network key 1 must be the same for all key 2 must be the same for all etc There are two methods for creating WEP encryption key
98. sible for the network will be able to provide this information Be sure to set the Regulatory Domain correctly as the first step SSID The Service Set Identification SSID identifies the wireless local area network NETGEAR is the default WG102 SSID However you may customize it by using up to 32 alphanumeric characters Write your customized SSID on the line below Note The SSID in the wireless access point is the SSID you configure in the wireless adapter card All wireless nodes in the same network must be configured with the same SSID Authentication Circle one Open System or Shared Key Choose Shared Key for more security Note If you select shared key the other devices in the network will not connect unless they are set to Shared Key as well and have the same keys in the same positions as those in the WG102 WEP Encryption Keys For all four 802 11b keys choose the Key Size Circle one 64 128 or 152 bits Key 1 Key 2 Key 3 Key 4 WPA PSK Pre Shared Key Record the WPA PSK key Key WPA RADIUS Settings For WPA record the following settings for the primary and secondary RADIUS servers Server Name IP Address Primary Secondary Port Shared Secret Use the procedures described in the following sections to configure the WG102 Store this information in a safe place 3 17 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Poi
99. sions Conventions This reference manual assumes that the reader has basic to intermediate computer and Internet skills However tutorial information is provided in the Appendices and on the NETGEAR Web site This guide uses the following formats to highlight special messages Note This format is used to highlight information of importance or special interest gt This manual is written for the WG102 Access Point according to these versions Table 1 1 Product Firmware Version Manual Version and Publication Date Product NETGEAR WG102 ProSafe 802 11g Wireless Access Point Manual Part Number Manual Publication Date October 2004 Note Product updates are available on the NETGEAR Web site at gt www netgear com support main asp About This Manual 1 1 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point How to Use this Manual The HTML version of this manual includes a variety of navigation features as well as links to PDF versions of the full manual and individual chapters 1 EEE rae Seren i Chapter 1 About This Manual e Chapter 2 Introduction vi Chapter 3 Basic Installation and Configu Observing Placement and Range Guid Default Factory Settings Understanding WG602 v2 Wireless Sq Installing the 54 Mbps Wireless Accel Two Ways to Log In to the WG602 Using the Basic IP Settings Options Understandin
100. ss List set to Everyone and the Encryption Strength set to Disabled Click Apply to save your changes gt Note If you are configuring the WG102 from a wireless computer and you change the SSID channel or security settings you will lose your wireless connection when you click Apply You must then change the wireless settings of your computer to match the new settings Configure and test your PCs for wireless connectivity Program the wireless adapter of your PCs to have the same SSID and channel that you configured in the WG102 Check that they have a wireless link and are able to obtain an IP address by DHCP from the WG102 Once your PCs have basic wireless connectivity to the WG102 you can configure the advanced wireless security functions Basic Installation and Configuration 3 18 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point How to Restrict Wireless Access by MAC Address To restrict access based on MAC addresses follow these steps 1 Log in to the WG102 using its default address of http 192 168 0 229 or at whatever IP address the unit is currently configured Use the default user name of admin and default password of password or whatever LAN address and password you have set up Note When configuring the WG102 from a wireless computer whose MAC address is not in the access control list if you select Turn Access Control On you wi
101. ss Points configured in Wireless Access Point mode to any LAN segment Note You can extend this multi point bridging by adding additional WG102s configured in Point to Point mode for each additional LAN segment Furthermore you can extend the range of the wireless network with NETGEAR wireless antenna accessories 5 6 Advanced Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point How to Configure Wireless Repeating a AP3 e Wireless Pe 5 AP in Repeater Mode AP in Repeater Mode Associated with AP1 n hii yore Aay with Z client associations 7 with client associations AP2 oa Router i AP in Repeater Mode Wireless PC with client associations Associated with AP3 BP 192 168 0 1 i LAN l Segment 1 e a Wireless PC Associated with AP2 Figure 5 6 Multi Point bridging 1 Configure the Operating Mode of the WG102 Access Points Configure API on LAN Segment 1 in Repeater mode with the Remote MAC Address of the downstream AP AP2 Configure AP2 in Repeater mode with the MAC addresses of the upstream AP AP1 and the MAC address of the downstream AP AP3 Configure AP3 in Repeater mode with the Remote MAC Address of the upstream AP AP2 2 Verify the following parameters for all access points e Verify that the LAN network configuration the WG102 Access Points are configured to operate in the same LA
102. sword to bring up the menu shown below Change Password Current Password New Password Repeat New Password Restore Default Password O Yes No Figure 4 5 Set Password menu To change the password first enter the old password and then enter the new password twice Click Apply to save your change 4 8 Management October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Using SNMP Remote Management Enable SNMP to allow SNMP network management software such as HP OpenView to manage the wireless access point via the SNMPv1 v2 protocol From the main menu of the browser interface under the Management heading click the Remote Management link to view this menu Remote Management SNMP O Enable Disable Public Community Name Private Community Name Manager IP address IP address to Receive Traps Figure 4 6 Remote Management settings 1 Click Enable to use the SNMP remote management feature 2 Fill in the fields according to the requirements of your location e Public Community Name Default public The community string to allow the SNMP manager to read the MIB objects of the WG102 e Private Community Name Default private The community string to allow the SNMP manager to read and write the MIB objects of the WG102 e Manager IP address Enter the IP address of the SNMP manager If this is set to 255 255 255 255 any SNMP manager will be allowed e IP add
103. ta security WEP Security but vulnerable WPA or WPA PSK Very strong security Figure 3 1 WG102 wireless data security options There are several ways you can enhance the security of your wireless network e Restrict Access Based on MAC address You can restrict access to only trusted PCs so that unknown PCs cannot wirelessly connect to the WG102 MAC address filtering adds an obstacle against unwanted access to your network but the data broadcast over the wireless link is fully exposed Turn Off the Broadcast of the Wireless Network Name SSID If you disable broadcast of the SSID only devices that have the correct SSID can connect This nullifies the wireless network discovery feature of some products such as Windows XP but the data is still fully exposed to a determined snoop using specialized test equipment like wireless sniffers e Use WEP Wired Equivalent Privacy WEP data encryption provides data security WEP Shared Key authentication and WEP data encryption will block all but the most determined eavesdropper Basic Installation and Configuration 3 4 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point e Use WPA or WPA PSK Wi Fi Protected Access WPA data encryption provides data security The very strong authentication along with dynamic per frame rekeying of WPA make it virtually impossible to compromise Because this is a new standard wireless device driver and softw
104. the wireless access point s Ethernet port Displays the domain or region for which the wireless access point is licensed for use It may not be legal to operate this wireless access point in a region other than one of those identified in this field The version of the firmware currently installed Identifies the operating mode of the WG102 Access Point Point to point bridge Multi point bridge or Repeater The IP address of the wireless access point The subnet mask for the wireless access point The default gateway for the wireless access point communication Enabled indicates that the current IP address was obtained from a DHCP server on your network Disabled indicates a static IP configuration Current Wireless Settings Operating Mode Wireless Network Name SSID Identifies the 802 11 operating mode of the WG102 Displays the wireless network name SSID being used by the wireless port of the wireless access point The default is NETGEAR Channel Frequency Identifies the channel the wireless port is using 11 is the default channel setting See Wireless Channels on page B 7 for the frequencies used on each channel WEP WPA WEP WPA setting Management 4 3 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Statistics The Information Statistics screen provides various LAN and WLAN statistics Statistics Wired Ethernet Packets Byte
105. ticate the station and the station will be unable to communicate with either the 802 11 network or Ethernet network This process is illustrated below B 4 Wireless Networking Basics October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 802 11b Authentication Shared Key Steps 1 Authentication W _________ Access Point request sent to AP a i lt _ 2 AP sends challenge text 2P i able or Client DLS modem A 3 Client encrypts attempting challenge text and gt ae to connect sends it back to AP 4 AP decrypts and if correct lt g authenticates client 5 Client connects to network gt Figure B 2 Shared key authentication Overview of WEP Parameters Before enabling WEP on an 802 11 network you must first consider what type of encryption you require and the key size you want to use Typically there are three WEP Encryption options available for 802 11 products 1 Do Not Use WEP The 802 11 network does not encrypt data For authentication purposes the network uses Open System Authentication 2 Use WEP for Encryption A transmitting 802 11 device encrypts the data portion of every packet it sends using a configured WEP Key The receiving device decrypts the data using the same WEP Key For authentication purposes the network uses Open System Authentication 3 Use WEP for Authentication and E
106. tion Server IP Address o Je p o Port Number i812 Shared Secret i Secondary Authentication Server IP Address lo Jo Jo jo Port Number 1812 Shared Secret Authentication Settings Reauthentication Time 3600 Seconds Update Global Key every 1800 Seconds Update if any station disassociates Primary Accounting Server IP Address o jo Jo Jo Port Number 1813 Shared Secret Secondary Accounting Server IP Address o ljo o ljo Port Number 1813 Shared Secret Figure 3 11 Wireless Settings menu 3 Enter the Radius settings 4 Click Apply to save your settings 5 Click WEP WPA Settings in the Security menu WEPIWPA Settings Wireless LAN Network Authentication Open System Mij Data Encryption Passphrase Key1 Figure 3 12 Wireless Settings menu 6 Choose WPA with Radius from the list 7 Click Apply to save your settings Basic Installation and Configuration 3 22 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point How to Configure WPA PSK Note Not all wireless adapters support WPA Furthermore client software is required on the client Windows XP and Windows 2000 with Service Pack 3 do include the client software that supports WPA Nevertheless the wireless adapter hardware and driver must also support WPA Consult the product document for your wireless adapter and WPA client software for instructions on
107. tiple access points it is better if adjacent access points use different channels to reduce interference The recommended channel spacing between adjacent access points is 5 channels for example use channels 1 and 6 or 6 and 11 3 13 Basic Installation and Configuration October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point In Infrastructure mode wireless stations normally scan all channels looking for an access point If more than one access point can be used the one with the strongest signal is used This can only happen when the various access points are using the same SSID Data Rate Shows the available transmit data rate of the wireless network 108 Mbps is only available when the operating mode is 802 11g only and the channel is 6 The default is Best Output Power Set the transmit signal strength of the access point The options are full half quarter eighth and min Decrease the transmit power if more than one AP is colocated using the same channel frequency The default is Full Understanding WEP WPA Security Options The table below identifies the various WEP WPA security options A full explanation of these standards is available in Appendix B Wireless Networking Basics WEPIWPA Settings Network Authentication Open System Data Encryption None v Passphrase Key 1 Key 2 Key 3 Key 4 Wireless Client Security Separation Enable Di
108. with WPA information element to the stations in the service set Information elements include the required authentication method 802 1x or Pre shared key and the preferred cipher suite WEP TKIP or AES Probe Responses AP to station and Association Requests station to AP also contain WPA information elements 1 Initial 802 1x communications begin with an unauthenticated supplicant client device attempting to connect with an authenticator 802 11 access point The client sends an EAP start message This begins a series of message exchanges to authenticate the client 2 The access point replies with an EAP request identity message Wireless Networking Basics B 13 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point 3 The client sends an EAP response packet containing the identity to the authentication server The access point responds by enabling a port for passing only EAP packets from the client to an authentication server located on the wired side of the access point The access point blocks all other traffic such as HTTP DHCP and POP3 packets until the access point can verify the client s identity using an authentication server for example RADIUS 4 The authentication server uses a specific authentication algorithm to verify the client s identity This could be through the use of digital certificates or some other EAP authentication type 5 The authentication server will eithe
109. work Adapters Wireless networking software in the adapter and possibly in the OS or client application must be updated to support the following e The new WPA information element Wireless clients must be able to process the WPA information element and respond with a specific security configuration e The WPA two phase authentication Open system then 802 1x supplicant EAP or preshared key e TKIP e Michael e AES optional To upgrade your wireless network adapters to support WPA obtain a WPA update from your wireless network adapter vendor and update the wireless network adapter driver For Windows wireless clients you must obtain an updated network adapter driver that supports WPA For wireless network adapter drivers that are compatible with Windows XP Service Pack 1 and Windows Server 2003 the updated network adapter driver must be able to pass the adapter s WPA capabilities and security configuration to the Wireless Zero Configuration service Wireless Networking Basics B 17 October 2004 Reference Manual for the NETGEAR WG102 ProSafe 802 119 Wireless Access Point Microsoft has worked with many wireless vendors to embed the WPA firmware update in the wireless adapter driver So to update your Microsoft Windows wireless client all you have to do is obtain the new WPA compatible driver and install the driver The firmware is automatically updated when the wireless network adapter driver is loaded in Windows Changes

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