Home

Netgear WG302 User's Manual

1. c sscssssssssessessecssssesssssessseessesessecsecseseees A Chapter 5 Advanced Configuration Understanding Advanced IP Settings for Wireless Clients A E eed Understanding Advanced Wireless Settings eeesereeerrisrerereiersrsrerenersrersrerern n D2 AutoCell RF Management ccccccccscsssccseccssescssecsseecseesseccaeccsaecssseccssecsseseesseseeees DA Configuration ii E E E E E TE mA AutoCell AP Client ercan APE AE E E A ates E A E E Additional AutoCell View Management Op 2 Ae en P E EE Wi Fi arma mak uh E E EEA once A E P A E ae iv Contents July 2005 v3 0 How to Gonbgare a WG302 as a Point to Point Bridge sss Bridging 1 igure Wireless Repaaling cscasscicisnisiienieccectunrndnmniocsiembicmasen OM How to Con Chapter 6 Troubleshooting No lights are lit on the access point ee E ret reer ey The Wireless LAN activity light eave not Hint up The LAN light is not lit AAE PEAN cannot access the Internet or the LAN with a wireless ite leannot connect to the WG302 fo configure Th cseiscisscsisesoodsientesssecidneddacoinnany T When I enter a URL or IP address get a timeout error cceteccseeeeseseteeeseessseesteeesens 6B Using the Reset Button to Restore Factory Default Settings ceeeseeeeeeeereeeee 6 4 Appendix A Specifications SUS tor the Pc cas csioti ates ita nnianme inna a A Appendix B Wireless Networking Basics Wireless Networking OVErvieW sc ciccissccitarses
2. Enhanced RF Security Stealth Mode Note Broadcast Wireless Network Name SSID is automatically turned off when you select the AutoCell Enhanced RF Security option gt In this mode AutoCell shrinks the size of coverage to the minimum to reach clients but also shrinks the size of the beacons that access points use to announce their presence This mode makes an enterprise wireless LAN nearly invisible to users outside an office building Advanced Configuration 5 3 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 AutoCell AP Client Interaction AutoCell s self organizing micro cells provide performance benefits and an additional level of privacy for enterprises e Automatic Transmit Power Control An AutoCell enabled client s RF transmit power level is automatically coordinated with an AutoCell enabled AP This creates client micro cells and reduces co channel interference with other clients and APs on the same frequency and improves overall throughput and performance Requires AutoCell enabled AP e Automatic Load Balancing An AutoCell enabled client will seek out and associate to the lightest loaded AutoCell enabled AP available Requires AutoCell enabled AP e Rapid Roaming An AutoCell enabled client will accurately and rapidly detect movement as distinguished from RF anomalies such as arbitrary and momentary changes in the surrounding RF domain When
3. Release the Reset Button The factory default configuration has now been restored and the WG302 is ready for use Changing the Administrator Password The default password is password Change this password to a more secure password You cannot change the administrator login name 4 12 Management July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 From the main menu of the browser interface under the Management heading click Change Password to bring up the menu shown below Change Password Current Password New Password Repeat New Password Restore Default Password OYes No Figure 4 8 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 Management 4 13 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 4 14 Management July 2005 v3 0 Chapter 5 Advanced Configuration This chapter describes how to configure the advanced features of your NETGEAR ProSafe Wireless Access Point 802 11g WG302 e IP Settings Use the AP as a DHCP server for wireless clients e Wireless Settings Set up AutoCell and configure 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 Understanding Advanced IP Settings for Wire
4. WEP WPA Settings Wireless LAN Network Authentication opan System z Data Encryption atom q we Radus D 3 24 July 2005 v3 0 Basic Installation and Configuration Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 6 Choose WPA with Radius from the list 7 Click Apply to save your settings 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 configuring WPA settings To configure WPA PSK follow these steps 1 Log in at the default LAN address of http 192 168 0 228 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 WEP WPA Settings in the Security menu of the WG302 WEP WPA Settings Wireless LAN Network Authentication Open System Data Encryption Open System Shared Key Passphrase Legacy 802 1 WPA with Radius Key1 WPA2 with Radius WPA amp WPA with Radius Key 2 IWPA PSK D eae Pork Key 3 WPA PSK amp WPA2 PSK Key 4 Enable Wireless Client Security Separator No Yes Cancel Figure 3
5. Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 NETGEAR Ee NETGEAR NETGEAR Inc 4500 Great America Parkway Santa Clara CA 95054 USA Phone 1 888 NETGEAR 202 10008 03 July 2005 July 2005 v3 0 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 2005 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 noti
6. supplicant pre shared key TCP IP Authentication Noelle A or 802 1x Peon noe VeriSign Authenticated Figure B 3 WPA WPA2 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 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Client with a WPA WPA2 enabled wireless adapter and supplicant For example a Wi
7. Products certified as Wi Fi are interoperable with each other even if they are from different manufacturers A user with a Wi Fi product can use any brand of access point with any other brand of client hardware that is built to the Wi Fi standard Wi Fi Alliance formerly WECA Wireless Ethernet Compatibility Alliance The Wi Fi Alliance is a nonprofit international association formed in 1999 to certify interoperability of wireless Local Area Network products based on IEEE 802 11 specification Currently the Wi Fi Alliance has 193 member companies from around the world and 509 products have received Wi Fi certification since certification began in March of 2000 The goal of the Wi Fi Alliance s members is to enhance the user experience through product interoperability www weca net Wi Fi Protected Access WPA WPA is a security technology for wireless networks that improves on the authentication and encryption features of WEP Wired Equivalent Privacy In fact WPA was developed by the networking industry in response to the shortcomings of WEP One of the key technologies behind WPA is the Temporal Key Integrity Protocol TKIP TKIP addresses the encryption weaknesses of WEP Another key component of WPA is built in authentication that WEP Glossary 13 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 does not offer With this feature WPA provides roughly comparable security to VPN tun
8. 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Note Failure to follow these guidelines can result in significant performance C J degradation or inability to wirelessly connect to the WG302 For complete performance specifications see Appendix A Specifications For best results place your wireless access point e Near the center of the area in which your PCs will operate e Inan elevated location such as a high shelf where the wirelessly connected PCs have line of sight access even if through walls e Away from sources of interference such as PCs microwaves and 2 4 GHz cordless phones e Away from large metal surfaces e 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 e Ifusing multiple access points it is better if adjacent access points use different radio frequency Channels to reduce inter
9. follow the instructions for Installing the WG302 Access Point on page 3 5 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 WG302 is connected and turned on Connect to it and check its settings If you cannot connect to it check the LAN and power connections If the WG302 is configured correctly check your Internet connection DSL Cable modem etc to make sure that it is working correctly Try again Troubleshooting 6 3 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Using the Reset Button to Restore Factory Default Settings The Reset button see WG302 rear panel on page 2 7 has two functions e Reboot When pressed and released quickly the WG302 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 WG302 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
10. 14 WEP WPA Settings menu 3 Choose WPA PSK from the list 4 Enter the pre shared key passphrase 5 Click Apply to save your settings Basic Installation and Configuration 3 25 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 How to Configure WPA2 with Radius Note Not all wireless adapters support WPA2 Furthermore client software is required on the client Make sure your client card supports WPA2 Consult the product document for your wireless adapter and WPA2 client software for instructions on configuring WPA2 settings To configure WPA2 follow these steps 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 1 have set up Radius Server Settings Click Radius Server Settings in the Security menu Authentication Access Control Radius Server Login Primary IP Address bl b e e Port Number fisiz Shared Secret f Secondary IP Address fo fo fo fo Port Number fisiz Shared Secret ti i C O Y Reauthentication Time jso Seconds I Global Key Update C every 3600 Seconds C every fioo x1000 Packets I Update if any station disassociates Accounting Radius Server Login Primary IP Address Port Number Shared Secret Secondary IP Address Port Number Shared Secret Po Po Po eo 1813 I B eo Po BO 18
11. 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 access 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
12. 4f35e MAC Address 00 09 5b 74 3 5e Country Region United States Firmware Version 4 1 2 Access Point Mode Access Point Current IP Settings IP Address 192 168 0 228 Subnet Mask 255 255 255 0 Default Gateway 0 0 0 0 DHCP Client Enable Current Wireless Settings Operating Mode Auto 1 1g 11b Wireless Network Name SSID NETGEAR Channel Frequency 6 2 442GHz WEP WPA Disable AutoCell Enable Rogue AP Detection Disable Figure 3 3 Login result WG302 home page Basic Installation and Configuration 3 7 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 When the wireless access point is connected to the Internet click the Knowledge Base or the Documentation link under the Web Support menu to view support information or the documentation for the wireless access point Ifyou do not click Logout the wireless access point will wait 5 minutes after there is no activity before it automatically logs you out e Click the Basic Settings link to view the Basic Settings menu Basic Settings Access Point Name netgear 4F35E IP Address DHCP Client OEnable Disable IP Address 192 Jiss Jo 228 IP Subnet Mask 255 2ss 25s o Default Gateway o lo b lo Secondary DNS Server o o a Jo Primary DNS Server jo jjo jjo Spanning Tree Protocol Enable Disable Time Zone GMT 08 00 Pacific Time US amp Canada Tijuana vi Cl Adjust for Day
13. 6 0 or above or Netscape Navigator 4 78 or above e At least one computer with the TCP IP protocol installed e 802 11b or 802 11b compliant devices such as the NETGEAR WGS511 Wireless Adapter Introduction 2 5 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 What s In the Box The product package should contain the following items e NETGEAR ProSafe Wireless Access Point 802 11g WG302 e Power adapter and cord 12 V dc 1 2 A e Straight through Category 5 Ethernet cable e WG302 802 11g ProSafe Wireless Access Point Installation Guide e Resource CD for the NETGEAR WG302 ProSafe 802 11g Wireless Access Point which includes this manual e 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 your area You should keep the Support Information card along with the original packing materials and use the packing materials to repack the WG302 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 Hardware Description The WG302 front and rear hardware functions are described below Figure 2 1 WG302 front panel 2 6 Introduction July 2005 v3 0 Reference Manual for the NETGE
14. 802 11g Radio Frequency Channel 11 AutoCell RF Management Enabled AutoCell Enhanced RF Security stealth mode Disabled WEP WPA Disabled Restricting connectivity based on MAC Access Disabled Control List Spanning Tree Protocol Enabled Time Zone GMT Time Zone Adjust for Daylight Saving Time Disabled SNMP Enabled but Trap forwarding is disabled Secure Telnet Enabled SugerG Mode Disabled WMM Mode Disabled Basic Installation and Configuration 3 3 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Understanding WG302 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 WG302 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 500 Foot Radius MMMM a 1 No Security Easy but no security 1 Me 2 MAC Access List No data security 3 WEP Security but vulnerable 4 WPA or WPA PSK Very strong security 5 AutoCell RF stealth mode Figure 3 1 WG302 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 restric
15. About This Manual Audience Scope Conventions and Formats cccscccccesssseeeeeeesseeeeessssneeeeeessseeeeesenes 1 1 Howo Use Te Mamial ecescssscscraacvbitardeastenradaarnsaraicent ohana acne 1 2 Howo rit TS Manual sisien a saceonteedans NS 1 3 Chapter 2 Introduction About the NETGEAR ProSafe Wireless Access Point 802 11g WG302 seess 2 1 Py RUS aials i A bs dou uiune pandas E T TE A P OT E T 2 2 AutoCell The Self Organizing Wireless Network ssesssssssessesssresssessresssrrssernsees 2 3 802 119 Standards based Wireless Networking cccccceesceeeeeeeeeeeeeeeeeeeeeeeeeess 2 4 Autosensing Ethernet Connections with Auto Uplink cceesceeeeeeeeeeseeeeeeeeeeeaeees 2 4 Compatible and Related NETGEAR Prodquete wissscscicsuecassccnessracesseieinsocsanteransesgneavocceanseee 2 5 PLINY REGRETE sinisas aa N E aAA aN 2 5 Vna s ne BOK oeo 2 6 ite gee cesta DoS PION ec 2 6 Chapter 3 Basic Installation and Configuration Observing Placement and Range Guidelines ccs ceceeeeeeeeeeeeeeeeeeeeeaeseeeeeeesaeeeeanees 3 1 rle Geile co UU lc 1 mre reer ere tnre tee ce reer rece tne erree OA 3 2 Deui Facto SONGS aiaa RAA 3 3 Understanding WG302 Wireless Security Options sssssssesseeesseesssessresssnssrrrseensssnnnens 3 4 installing the WG302 Accesa Point soniri einai aaa a A a E 3 5 How to Log In to the WG302 Using Its Default IP Address cccecssseeeessssteeeeeeenaes 3 11 Using the Basie IP Settings OP
16. 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 that has been defined by the IEEE B 8 Wireless Networking Basics July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 WPA and WPA2 offer 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 Wi Fi certified products have to support WPA NETGEAR is implementing WPA and WPA2 on client and access point products The 802 111 standard was ratified in 2004 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 cumbers
17. Rogue APs by definition are not under the management of network administrators and do not conform to network security policies and may present a severe security risk Ideally it is best to have some type of WLAN system that does not allow rogue access points to easily be added to an existing WLAN Router A device that forwards data packets from one local area network LAN or wide area network WAN to another Based on routing tables and routing protocols routers can read the network address in each transmitted frame and make a decision on how to send it via the most efficient route based on traffic load line costs speed bad connections etc Satellite broadband A wireless high speed Internet connection provided by satellites Some satellite broadband connections are two way up and down Others are one way with the satellite providing a high speed downlink and then using a dial up telephone connection or other land based system for the uplink to the Internet Server A computer that provides its resources to other computers and devices on a network These include print servers Internet servers and data servers A server can also be combined with a hub or router 10 Glossary July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Site survey The process whereby a wireless network installer inspects a location prior to putting in a wireless network Site surveys are used to identify
18. Server IP Address Port No and Shared Secret is required for communication with Radius Server A Secondary Radius Server can be configured which is used on failure on Primary Radius Server IP Address The IP address of the Radius Server The default is 0 0 0 0 Port Number Port number of the Radius Server The default is 1813 e Shared Secret This is shared between the Wireless Access Point and the Radius Server while authenticating the supplicant 4 Click Apply to save your settings Basic Installation and Configuration 3 27 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 5 Click WEP WPA Settings in the Security menu WEP WPA Settings Wireless LAN Network Authentication Open System gt Data Encryption Enable Wireless Client Security Separator No Yes Cancel Figure 3 16 WEP WPA Settings menu 6 Choose WPA2 with Radius from the list 7 Click Apply to save your settings How to Configure WPA2 PSK Note Not all wireless adapters support WPA2 Furthermore client software is required on the client Make sure your client card supports WPA2 Consult the product document for your wireless adapter and WPA2 client software for instructions on configuring WPA2 settings To configure WPA2 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
19. access list Repeat these steps for each additional device you want to add to the list 7 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 WG302 How to Configure WEP To configure WEP data encryption follow these steps 1 Log in to the WG302 using its default address of hitp 192 168 0 228 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 2 Click the WEP WPA Settings link in the main menu of the WG302 WEP WPA Settings Wireless LAN Network Authentication Open System z Data Encryption Ope Passphrase Key 1 WPA amp WPA2 with Radius Key 2 WPA PSK Cie WPA2 PSK ye WPA PSK amp WPA2 PSK Key 4 Enable Wireless Client Security Separator No Yes Cancel Figure 3 11 Wireless Settings menu 3 Choose Open System or Shared Key authentication Basic Installation and Configuration 3 21 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 cli
20. it detects true movement the client immediately seeks the best available AP at the highest data rate possible instead of waiting for the data rate to decline Does not Require AutoCell enabled APs 5 4 Advanced Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Additional AutoCell View Management Options Figure 5 3 AutoCell View wireless network AutoCell View is an available management tool that provides sophisticated views of your wireless network and enables managing the wireless communications easily from a simple console Wi Fi Multimedia WMM Setup WMM is a subset of the 802 1 1le standard WMM allows wireless traffic to have a range of priorities depending on the kind of data Time dependent information such as video or audio will have a higher priority than normal traffic For WMM to function correctly wireless clients must also support WMM WMM Support Select Yes or No as required on the Advanced Wireless Settings menu The default is No Advanced Configuration 5 5 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Configuring Wireless LAN Parameters The default advanced wireless LAN parameter settings usually work well If you want the AP to operate in Super G mode use this feature Wireless LAN Parameters Enable SuperG Mode RTS Threshold 0 2346 Beacon Interval 20 1000 DTIM Interval 1 2
21. list if you select Turn Access Control On you will 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 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 Trusted Wireless Stations Local MAC Address Database MAC Address C 00 09 5b a0 00 04 Available Wireless Stations Station iMac Address ID Add Add New Station Manually MAC Address k Add Figure 3 10 Access Control List menu 3 Select the Turn Access Control On check box 3 20 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 4 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 If you choose the RADIUS MAC Address Database you must configure the RADIUS Server Settings first 5 Then either select from the list of available wireless cards the WG302 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 6 Click Add to add the wireless device to the
22. manual includes the following e Buttons gt and lt _ for browsing forwards or backwards through the manual one page at a time e A button that displays the table of contents and an button Double click on a link in the table of contents or index to navigate directly to where the topic is described in the manual e A Knowledge Base button to access the full NETGEAR Inc online knowledge base for the product model e Links to PDF versions of the full manual and individual chapters 1 2 About This Manual July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 How to Print this Manual To print this manual you can choose one of the following several options according to your needs e Printing a Page in the HTML View Each page in the HTML version of the manual is dedicated to a major topic Use the Print button on the browser toolbar to print the page contents e Printing a Chapter Use the PDF of This Chapter link at the top left of any page Click the 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 you
23. market or will require hardware upgrades to implement Wi Fi Protected Access for the Enterprise Wi Fi Protected Access effectively addresses the WLAN security requirements for the enterprise and provides a strong encryption and authentication solution prior to the ratification of the IEEE 802 111 standard In an enterprise with IT resources Wi Fi Protected Access should be used in conjunction with an authentication server such as RADIUS to provide centralized access control and management With this implementation in place the need for add on solutions such as VPNs may be eliminated at least for the express purpose of securing the wireless link in a network Wi Fi Protected Access for Home SOHO In a home or Small Office Home Office SOHO environment where there are no central authentication servers or EAP framework Wi Fi Protected Access runs in a special home mode This mode also called Pre Shared Key PSK allows the use of manually entered keys or passwords and is designed to be easy to set up for the home user All the home user needs to do is enter a password also called a master key in their access point or home wireless gateway and each PC that is on the Wi Fi wireless network Wi Fi Protected Access takes over automatically from that point First the password allows only devices with a matching password to join the network which keeps out eavesdroppers and other unauthorized users Second the password automatically kicks off th
24. of password or using whatever LAN address and password you have set up 3 28 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 2 Click WEP WPA Settings in the Security menu of the WG302 WEP WPA Settings Wireless LAN Network Authentication l Open System gt Data Encryption Open System Shared Key Passphrase Legacy 802 1 WPA with Radius WPA2 with Radius WPA amp WPA2 with Radius Key1 Key 2 WPA PSK FiWPAZPSK D WrATORE WrACroR Key 4 Enable Wireless Client Security Separator No Yes Cancel Figure 3 17 WEP WPA Settings menu 3 Choose WPA2 PSK from the list 4 Enter the pre shared key passphrase 5 Click Apply to save your settings How to Configure WPA and WPA2 with Radius 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 Note Not all wireless adapters support WPA2 Furthermore client software is required on the client Make sure your client card supports WPA2 Consult the product document for your wireless adapter and WP
25. rate X X ssid wireless network name 1 32 chars X X ssidsuppress wireless SSID broadcast suppress Xx X power wireless transmit power xX X antenna wireless antenna selection Xx X fragmentationthreshold wireless fragmentation threshold even only X X rtsthreshold wireless RTS CTS threshold xX X beaconinterval wireless beacon period in TU 1024 us Xx X dtim wireless DTIM period in beacon interval X X preamble wireless preamble only effect on 802 11b rates Xx X super enable wireless super A G mode xX X wirelessisolate wireless isolate communication between clients X X operationmode wireless operation mode Xx X X remoteap wireless remote AP s depends on operationmode x X X p2p ap remote AP address for p2p mode X X X p2mp ap remote AP address for p2mp mode x X X 1 lst remote AP address for p2mp mode x X X 2 2nd remote AP address for p2mp mode Xx X X 3 3rd remote AP address for p2mp mode X X X 4 4th remote AP address for p2mp mode Xx X X repeater remote AP address for repeater mode X X X 1 1st remote AP address for repeater mode X X X 2 2nd remote AP address for repeater mode xX X X 3 3rd remote AP address for repeater mode Command Line Reference July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Acce
26. 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 fusing multiple 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 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 e 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 e 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 Note Output power is automatically adjusted by AutoCell when the Auto RF Management option is enabled The default setting is for the AutoCell Auto RF Management option to be enabled Basic Installation and Configuration 3 15 July 2005 v3 0 Reference Manual for the N
27. short range transmission of voice and data across a global radio frequency band without the need Glossary 3 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 for cables or wires Bluetooth is a frequency hopping technology in the 2 4 GHz frequency spectrum with a range of 30 feet and up to 11Mbps raw data throughput Bridge A product that connects a local area network LAN to another local area network that uses the same protocol for example wireless Ethernet or token ring Wireless bridges are commonly used to link buildings in campuses Client or Client devices Any computer connected to a network that requests services files print capability from another member of the network Clients are end users Wi Fi client devices include PC Cards that slide into laptop computers mini PCI modules embedded in laptop computers and mobile computing devices as well as USB and PCI ISA bus Wi Fi radios Client devices usually communicate with hub devices like access points and gateways Collision avoidance A network node characteristic for proactively detecting that it can transmit a signal without risking a collision thereby ensuring a more reliable connection Crossover cable A special cable used for networking two computers without the use of a hub Crossover cables may also be required for connecting a cable or DSL modem to a wireless gateway or access point Instead of the signals
28. supplicant e Re authentication Time The time interval in seconds after which the supplicant will be authenticated again with the Radius Server The default is 3600 seconds e Global key Re Key Time Check on this option to enable Re keying of Global Key The Global Key Re Key can be done based on time interval in seconds or number of packets exchanged using the global key The default is 3600 seconds e Update if any station disassociates Check on this option to refresh global key when any stations disassociated with wireless Access Point e Accounting Radius Server Configuration This configuration is required for accounting using Radius Server IP Address Port No and Shared Secret is required for communication with Radius Server A Secondary Radius Server can be configured which is used on failure on Primary Radius Server e JP Address The IP address of the Radius Server The default is 0 0 0 0 Port Number Port number of the Radius Server The default is 1813 e Shared Secret This is shared between the Wireless Access Point and the Radius Server while authenticating the supplicant 4 Click Apply to save your settings 5 Click WEP WPA Settings in the Security menu Shared Key Passphrase Lega Key 1 q RER Ry ie with Radius Key 2 WPA PSK Key 3 WPA2 PSK yee WPA PSK amp WPA2 PSK Key 4 Enable Wireless Client Security Separator No Cyes Cancel Figure 3 13 Wireless Settings menu
29. the radio and client use properties of a facility so that access points can be optimally placed SSID also called ESSID A 32 character unique identifier attached to the header of packets sent over a WLAN that acts as a password when a mobile device tries to connect to the BSS Also called ESSID The SSID differentiates one WLAN from another so all access points and all devices attempting to connect to a specific WLAN must use the same SSID A device will not be permitted to join the BSS unless it can provide the unique SSID Because an SSID can be sniffed in plain text from a packet it does not supply any security to the network An SSID is also referred to as a Network Name because essentially it is a name that identifies a wireless network SSL Secure Sockets Layer Commonly used encryption scheme used by many online retail and banking sites to protect the financial integrity of transactions When an SSL session begins the server sends its public key to the browser The browser then sends a randomly generated secret key back to the server in order to have a secret key exchange for that session Subnetwork or Subnet Found in larger networks these smaller networks are used to simplify addressing between numerous computers Subnets connect to the central network through a router hub or gateway Each individual wireless LAN will probably use the same subnet for all the local computers it talks to Switch A type of hub that effic
30. to be supported Broadcast packets use TKIP For unicast point to point transmissions WPA clients use TKIP and WPA2 clients use AES Passphrase To use the passphrase to generate the WEP keys enter a passphrase and click Generate Keys You can also enter the keys directly These keys must match the other wireless stations Key 1 Key 2 Key 3 Key 4 If using WEP select the key to be used as the default key Data transmissions are always encrypted using the default key The other keys can only be used to decrypt received data WPA Passphrase Network Key If using WPA PSK enter the passphrase here All wireless stations must use the same passphrase network key The network key must be from 8 to 63 characters in length Wireless Client Security Separation If enabled the associated wireless clients will not be able to communicate with each other This feature is intended for hotspots and other public access situations The default is Disabled Basic Installation and Configuration 3 17 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Before You Change the SSID and WEP Settings For a new wireless network print this form and fill in the parameters For an existing wireless network get the settings from the person who set up or is responsible for the network Be sure to set the Regulatory Domain correctly as the first step Store this information in a safe place SSID The Se
31. to their visitors and guests In some parts of the world HotSpots are known as CoolSpots Hub A multiport device used to connect PCs to a network via Ethernet cabling or via Wi Fi Wired hubs can have numerous ports and can transmit data at speeds ranging from 10 Mbps to multigigabyte speeds per second A hub transmits packets it receives to all the connected ports A small wired hub may only connect 4 computers a large hub can connect 48 or more Wireless hubs can connect hundreds HZ hertz The international unit for measuring frequency equivalent to the older unit of cycles per second One megahertz MHz is one million hertz One gigahertz GHz is one billion hertz The standard US electrical power frequency is 60 Hz the AM broadcast radio frequency band is 535 1605 kHz the FM broadcast radio frequency band is 88 108 MHz and wireless 802 11b LANs operate at 2 4 GHz 6 Glossary July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 IEEE Institute of Electrical and Electronics Engineers A membership organization www ieee org that includes engineers scientists and students in electronics and allied fields It has more than 300 000 members and is involved with setting standards for computers and communications IEEE 802 11 A set of specifications for LANs from The Institute of Electrical and Electronics Engineers IEEE Most wired networks conform to 802 3 the speci
32. 13 w ao Cancel Figure 3 15 Radius Server Settings menu 3 26 July 2005 v3 0 Basic Installation and Configuration Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 3 Enter the Radius settings e Authentication Access Control Radius Server Configuration This configuration is required for authentication using Radius IP Address Port No and Shared Secret is required for communication with Radius Server A Secondary Radius Server can be configured which is used on failure on Primary Radius Server e IP Address The IP address of the Radius Server The default is 0 0 0 0 Port Number Port number of the Radius Server The default is 1812 e Shared Secret This is shared between the Wireless Access Point and the Radius Server while authenticating the supplicant e Re authentication Time The time interval in seconds after which the supplicant will be authenticated again with the Radius Server The default is 3600 seconds e Global key Re Key Time Check on this option to enable Re keying of Global Key The Global Key Re Key can be done based on time interval in seconds or number of packets exchanged using the global key The default is 3600 seconds e Update if any station disassociates Check on this option to refresh global key when any stations disassociated with wireless Access Point e Accounting Radius Server Configuration This configuration is required for accounting using Radius
33. 2 ESSID more commonly referred to as SSID Short Set Identifier The identifying name of an 802 11 wireless network When you specify your correct ESSID in your client setup you ensure that you connect to your wireless network rather than another network in range See SSID The ESSID can be called by different terms such as Network Name Preferred Network SSID or Wireless LAN Service Area Ethernet International standard networking technology for wired implementations Basic 10BaseT networks offer a bandwidth of about 10 Mbps Fast Ethernet 100 Mbps and Gigabit Ethernet 1000 Mbps are becoming popular Firewall A system that secures a network and prevents access by unauthorized users Firewalls can be software hardware or a combination of both Firewalls can prevent unrestricted access into a network as well as restrict data from flowing out of a network Gateway In the wireless world a gateway is an access point with additional software capabilities such as providing NAT and DHCP Gateways may also provide VPN support roaming firewalls various levels of security etc Hot Spot also referred to as Public Access Location A place where you can access Wi Fi service This can be for free or for a fee HotSpots can be inside a coffee shop airport lounge train station convention center hotel or any other public meeting area Corporations and campuses are also implementing HotSpots to provide wireless Internet access
34. 5 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 CSMA CD Carrier Sense Multiple Action Collision Detection A method of managing traffic and reducing noise on an Ethernet network A network device transmits data after detecting that a channel is available However if two devices transmit data simultaneously the sending devices detect a collision and retransmit after a random time delay DHCP Dynamic Host Configuration Protocol A utility that enables a server to dynamically assign IP addresses from a predefined list and limit their time of use so that they can be reassigned Without DHCP an IT Manager would have to manually enter in all the IP addresses of all the computers on the network When DHCP is used whenever a computer logs onto the network it automatically gets an IP address assigned to it Diversity antenna A type of antenna system that uses two antennas to maximize reception and transmission quality and reduce interference DNS Domain Name System A program that translates URLs to IP addresses by accessing a database maintained on a collection of Internet servers The program works behind the scenes to facilitate surfing the Web with alpha versus numeric addresses A DNS server converts a name like mywebsite com to a series of numbers like 107 22 55 26 Every website has its own specific IP address on the Internet Encryption Key An alphanumeric letters and or numbers series t
35. 55 Preamble Type Antenna CyYes No 2346 Fragmentation Length 256 2346 2346 100 ms 1 C Long Auto Primary Cancel Figure 5 4 Advanced Wireless Settings screen The table below describes the advanced wireless parameters Table 5 1 Advanced Wireless LAN Settings Fields Field Description Enable SuperG Mode Click Enable to enable SuperG Mode RTS Threshold Fragmentation Length Beacon Interval 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 1004 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 range A short transmit preamble gives better performance Long is the default Antenna Select the desired antenna for transmitting and receiving Auto is the default 5 6 Advanced Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Hotspot Sett
36. A2 client software for instructions on configuring WPA2 settings Basic Installation and Configuration 3 29 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 To configure WPA and WPA2 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 Radius Server Settings Authentication Access Control Radius Server Login Primary IP Address b e p Port Number jis12 Shared Secret E Secondary IP Address o l e e e Port Number s12 Shared Secret OCS Reauthentication Time E 600 Seconds I Global Key Update C every 3600 Seconds C every fiooo x1000 Packets I Update if any station disassociates Accounting Radius Server Login Primary IP Address fo fo fo fo PortNumber 1813 _ Shared Secret Secondary IP Address fo k fo fo k p PortNumber 1613 _ Shared Secret sz Cancel Figure 3 18 Radius Server Settings menu 3 30 July 2005 v3 0 Basic Installation and Configuration Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 3 Enter the Radius settings e Authentication Access Control Radius Server Configuration This configuration is required for authentication using Radius IP Address Port No a
37. AR ProSafe Wireless Access Point 802 11g WG302 The following table explains the LED indicators LED DESCRIPTION PWR Power Indicator Off No power 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 100 Ethernet LAN Speed Indicator Off Indicates 10 Mbps Ethernet link detected Green On 100 Mbps Fast Ethernet link detected LINK ACT LAN Ethernet LAN Link Activity Indicator Off Indicates no Ethernet link detected Green On 100 Mbps Fast Ethernet link detected no activity Green Blink Indicates data traffic on the 100Mbps Ethernet LAN Amber On 10 Mbps Ethernet link detected no activity Amber Blink Indicates data traffic on the 10Mbps Ethernet LAN 802 11g WLAN Wireless LAN Link Activity Indicator Off Indicates no wireless link activity Green Blink Wireless link activity Figure 2 2 WG302 rear panel Introduction July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Left and Right Detachable Antenna The WG302 provides two detachable antenna Restore to Factory Defaults Button The restore to default button located between the Ethernet RJ 45 connector and the power socket restores the WG302 to the factory default settings Serial Console Port Male DB 9 serial port for serial DTE connections R
38. 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 H Wireless LAN M Turn Radio On Wireless Network Name SSID NETGEAR Broadcast Wireless Network Name SSID ves CNo Operating Mode Auto 11g 11b E Channel Frequency 27G 4 Data Rate Bet H Output Power Fa z Apply Cancel Figure 3 8 Basic Wireless Settings menu The Basic Wireless Settings menu options are discussed below e Country Region This field identifies the region where the WG302 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 Basic Installation and Configuration 3 13 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 e Turn Radio 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 e Wireless Network Name SSID The SSID is also known as the wireless network name Enter a value of up to 32 alphanum
39. Default IP Address 1 192 168 0 228 is the default IP address of your access point The WG302 is set by default with the DHCP client disabled Note The computer you are using to connect to the WG302 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 WG302 by entering its default address of http 192 168 0 228 into your browser A login window like the one shown below opens gt t NETGEAR ProSafe Wireless Access Point 0507 p x J Name admin Password eeccccce Figure 3 6 Login 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 WG302 Access Point and display the home page as shown in Login result WG302 home page on page 3 7 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 Installation and Configuration 3 11 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Basic Settings Access Point Name Inetgear 4F35E IP Address DHCP Client OE Enable Disable IP Address 192 168 Jo 228 IP Subnet Mask 255 J255 255 o Default Gate
40. EAR ProSafe Wireless Access Point 802 11g WG302 e All WG302 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 WG302 Access Points in the illustration above If you require wireless stations to access any lan segment you can additional WG302 Access Points configured in Wireless Access Point mode to any LAN segment Note You can extend this multi point bridging by adding additional WG302s 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 How to Configure Wireless Repeating u AP3 r ve Hes P i AP inf Repeater Mode AP in Repeater Mode Associated with AP1 i A By 2 eos 3 i aii witb client associations Bev aoe with client associations J cl AP2 We Router i AP in Repeater Mode Wireless PC INTERNEN with client associations Associated with AP3 D 192 168 0 1 j j CI L LAN tes Segment 1 a iy Wireless PC Associated with AP2 Figure 5 9 Multi Point bridging 1 Configure the
41. ETGEAR ProSafe Wireless Access Point 802 11g WG302 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 Wireless LAN Network Authentication Open System i Data Encryption None Passphrase Key 1 Key 2 Key 3 Key 4 Enable Wireless Client Security Separator No O Yes Figure 3 9 Wireless Security Settings The WEP WPA settings are explained as follows e Network Authentication Specifies the Authentication type used The default is Open System Select the desired option Open System If selected you have the option of using WEP encryption or no encryption Shared Key If selected you must use WEP at least one shared key must be entered Legacy 802 1x If selected you must configure the Radius Server Settings Screen WPA PSK If selected you must use TKIP encryption and enter the WPA passphrase Network key WPA with Radius If selected you must configure the Radius Server Settings Screen WPA2 PSK WPA2 is a later version of WPA Only select this if all clients support WPA2 If selected you must use AES encryption and enter the WPA passphrase Network key 3 16 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 W
42. G302 A 2 Specifications July 2005 v3 0 Appendix B Wireless Networking Basics This chapter provides an overview of Wireless networking Wireless Networking Overview The WG302 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 when 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 dat
43. 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 WPA2 requires software changes to the following e Wireless access points e Wireless network adapters e Wireless client programs Supporting a Mixture of WPA WPA2 and WEP Wireless Clients is Discouraged To support the gradual transition of WEP based wireless networks to WPA WPA2 a wireless AP can support both WEP and WPA WPA2 clients at the same time During the association the wireless AP determines which clients use WEP and which clients use WPA WPA2 The disadvantage to supporting a mixture of WEP and WPA WPA2 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 WPA2 and non WPA WPA2 clients would offer network security that is no better than that obtained with a non WPA WPA2 network and thus this mode of operation is discouraged B 16 Wireless Networking Basics July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Changes to Wireless Access Points Wireless access points must have their firmware updated to support the following e The new WPA WPA2 information element To adv
44. J 45 Ethernet Port Use the WG302 Ethernet RJ 45 port to connect to an Ethernet LAN through a device such as a hub switch router or POE switch Power Socket This socket connects to the WG302 12V 1 2A power adapter 2 8 Introduction July 2005 v3 0 Chapter 3 Basic Installation and Configuration This chapter describes how to set up your NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 E 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 secure your network from unauthorized access The WG302 Access Point provides highly effective security features which are covered in detail in Understanding WEP WPA Security Options on page 3 15 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 WG302 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
45. NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 WG302 using its default address of hitp 192 168 0 228 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 WG302 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 ProSafe Wireless Access Point 802 11g WG302 If they do not match you will not get a wireless connection to the WG302 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 config
46. NetBIOS name The default name may be changed if desired MAC Address Displays the Media Access Control address MAC address of the wireless access point s Ethernet port Country Region 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 Firmware Version The version of the firmware currently installed Access Point Mode Identifies the operating mode of the WG302 Access Point Point to point bridge Multi point bridge or Repeater Current IP Settings IP Address The IP address of the wireless access point Subnet Mask The subnet mask for the wireless access point Default Gateway The default gateway for the wireless access point communication DHCP Client Enabled indicates that the current IP address was obtained from a DHCP server on your network Disabled indicated a static IP configuration Current Wireless Settings Operating Mode Identifies the 802 11 operating mode of the WG302 Wireless Network Name SSID 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 ea
47. O scrisorii iieiea e EE AA 3 11 Understanding Basic Wireless Settings sicicicsccscccicisicaseseceisuieiansinensscnoreniatesnanieneseeneaseee 3 13 Understanding WEP WPA Security Options 0 e ccccccceeeseeeeeeeeeeaeeeeeeeeeeaaeeeeneeeeaas 3 15 Before You Change the SSID and WEP Settings cecccceeeeeeeeeeeeeeeeeeeeeeneeees 3 18 How to Set Up and Test Basic Wireless Connectivity ccccceeeeseeeeeteeeeeneeees 3 19 How to Restrict Wireless Access by MAC Address esceeeeeeeeeeseeeteteeeteeeeees 3 20 POW Tr TREY WER seinoria na E EAE R aE 3 21 Contents July 2005 v3 0 How to Configure WPA with Radius How to Configure WPA PSK ee err How to Configure WPA2 with adhi P asus E E E E E How to Configure WPA2 PSK E E AE E E A E E dunner eee How to pips ure bill and WPA2 with Radius ieaiaia biisei 4 Management Remote Management 4 1 Using the Secure Telnet Interface PE E A How to Use the CLI via the Console Port E E EA eer eer rere tn a Commands 4 3 Vieaang a ide of ve ailable w eless Stations cinta aie eet etna Detecting a Rogue Access Point Upgrading the Wireless Access Point Configuration File Management Soa E A AA E EEE EVA EE E A Saving and Retrieving the O FNR EENE EAEAN E N Restoring the WG302 to the Factory Default It Settings Sil cinder Using the Reset Button to Restore Factory Default Settings Gypanenmeniannonon a Changing the Administrator Password
48. Operating Mode of the WG302 Access Points WG302 AP1 on LAN Segment 1 in Repeater mode with the Remote MAC Address of AP2 Configure WG302 AP2 in Repeater mode with MAC addresses of AP1 and AP3 Advanced Configuration 5 11 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Configure the WG302 AP3 in Repeater mode with the Remote MAC Address of AP2 2 Verify the following parameters for all access points e Verify that the LAN network configuration the WG302 Access Points are configured to operate in the same LAN 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 WG302 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 WG302 Access Points use the same SSID Channel authentication mode if any and encryption in use 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 WLAN segments Note You can extend this repeating by adding up to 2 additional WG302s configured in repeater mode However since Repeater configurations communicate in half duplex mode the bandwidth decreases as you add Repeaters to the netw
49. PA PSK and WPA2 PSK This selection allows clients to use either WPA with TKIP or WPA2 with AES If selected encryption must be TKIP AES The WPA passphrase Network key must also be entered WPA2 with Radius WPA2 is a later version of WPA Only select this if all clients support WPA2 If selected you must use AES encryption and configure the Radius Server Settings Screen WPA and WPA2 with Radius This selection allows clients to use either WPA with TKIP or WPA2 with AES If selected encryption must be TKIP AES and you must also configure the Radius Server Settings Screen Note All options are available if using Access Point mode In other modes e g Repeater or Bridge some options may be unavailable Data Encryption Select the desired option The available options depend on the Network Authentication setting above otherwise the default is None The supported options are None No encryption is used 64 bits WEP Standard WEP encryption using 40 64 bit encryption 128 bits WEP Standard WEP encryption using 104 128 bit encryption 152 bits WEP Proprietary mode that will only work with other wireless devices that support this mode TKIP This is the standard encryption method used with WPA AES This is the standard encryption method for WPA2 Some clients may support AES with WPA but this is not supported by this Access Point TKIP AES This setting allows both WPA and WPA2
50. 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 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 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 en
51. a 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Ad Hoc Mode Peer to Peer Workgroup In an ad hoc network computers are brought together as 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 Extend
52. a privacy AES or AES OCB Advanced Encryption Standard and Offset Codebook is a robust data privacy scheme and is a longer term solution Security Association Management is addressed by a RSN Negotiation Procedures b IEEE 802 1x Authentication and c IEEE 802 1x Key management The standards are being defined to naturally co exist with pre RSN networks that are currently deployed 802 11n Standard A recently formed Oct 2003 IEEE official task group referred to as 802 11n or TGn for the 100 Mbps wireless physical layer standard protocol Current published ratification date is December 2005 As of February 2004 no draft specification has been written It is expected to use both the 2 4 and 5GHz frequencies AES Advanced Encryption Standard A symmetric 128 bit block data encryption technique developed by Belgian cryptographers Joan Daemen and Vincent Rijmen The U S government adopted the algorithm as its encryption technique in October 2000 replacing the DES encryption it used AES works at multiple network layers simultaneously The National Institute of Standards and Technology NIST of the U S Department of Commerce selected the algorithm called Rijndael pronounced Rhine Dahl or Rain Doll out of a group of five algorithms under consideration including one called MARS from a large research team at IBM AES is expected to replace WEP as a WLAN encryption method in 2003 2 Glossary July 2005 v3 0 Reference Manual for
53. abling SSID broadcast somewhat hampers the wireless network discovery feature of some products The default is to enable SSID broadcast Note Broadcast Wireless Network Name SSID is automatically turned off when you select the AutoCell Enhanced RF Security option in the advanced wireless settings page gt e Operating Mode Select the desired wireless operating mode The options are Auto 11g b Both 802 11g and 802 11b wireless stations can be used This is the default 11g Only Only 802 11g wireless stations can be used This is required for 108 Mbps data rate operation 3 14 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 WG302 near another access point See Wireless Channels on page B 7 for more information on wireless channels Note Channel selection is automatically adjusted by AutoCell when the Auto RF Ca Management option is enabled The default setting is for the AutoCell Auto RF Management option to be enabled Access points use a fixed channel You can
54. apter s WPA capabilities and security configuration to the Wireless Zero Configuration service Wireless Networking Basics B 17 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Microsoft has worked with many wireless vendors to embed the WPA driver update in the wireless adapter driver So to update your Microsoft Windows wireless client all you have to do is obtain the new WPA WPA2 compatible driver and install the driver Changes to Wireless Client Programs Wireless client programs must be updated to permit the configuration of WPA WPA2 authentication and preshared key and the new WPA WPA2 encryption algorithms TKIP and AES To obtain the Microsoft WPA client program visit the Microsoft Web site Note The Microsoft WPA2 client is still in beta B 18 Wireless Networking Basics July 2005 v3 0 Appendix C Command Line Reference The NETGEAR ProSafe Wireless Access Point 802 11g WG302 AP can be configured either through the command line interface CLI a Web browser or an MIB browser The CLI allows viewing and modification of the configuration from a terminal or PC through a telnet connection Command Sets get set del keyword bat X X X X X X X X X X xX X X X X X X X X X X KO MMM MM PI PI MX MM pI pI pd pd MM pI pS pS pS pS OM OX time NOW Zone daylight saving system
55. at least 5 seconds 3 Release the Reset button The factory default configuration has now been restored and the WG302 is ready for use 6 4 Troubleshooting July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Appendix A Specifications This appendix provides technical specifications for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Specifications for the WG302 Parameter NETGEAR ProSafe Wireless Access Point 802 11g WG302 802 11g Data Rates 1 2 5 5 11 12 18 24 36 38 54 amp 108 Mbps Auto rate capable 802 11g Operating Frequencies 2 412 2 462 GHz US 2 457 2 462 GHz Spain 2 412 2 484 GHz Japan 2 457 2 472 GHz France 2 412 2 472 GHz Europe ETSI 802 11g Encryption 40 bits also called 64 bits 128 and 152 bits WEP data encryption Network Management 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 12V DC 1 2A Electromagnetic Compliance FCC Part 15 Class B and Class E Environmental Specifications Operating temperature 0 to 50 C Operating humidity 5 95 non condensing Specifications A 1 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g W
56. ath 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 WG302 will reboot automatically Restoring the WG302 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 WG302 s DHCP client is enabled the default LAN IP address is 192 168 0 228 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 WG302 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 WG302 2 Hold the Reset Button down while you Power On the WG302 for 5 seconds 3 Continue holding the Reset Button until the LEDs blink twice 4
57. ay the CLI command help CLI Commands The CLI commands are listed in Appendix C Command Line Reference Management 4 3 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 Station List link to view the list shown below Activity Log ClEnable SysLog Syslog Server IPAddress 0 o o o Port 514 Activity Log Window O00006e6 WLANO AP 00 09 5B 74 F3 5E is ready Af in service 000006e6 WLANO AP 00 09 5B 74 F3 5E stop service 000006e9 WLANO AP 00 09 5B 74 F3 5E is ready in service 000008lc WLANO AP 00 09 5B 74 F3 5E stop service 000008le WLANO AP 00 09 5B 74 F3 5E is ready in service lt Refresh Save As Figure 4 3 Syslog and Activity Log information 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 W
58. bal key update interval in seconds X X autocell X X mode autocell mode X X super privacy avoid other wlan X X wmm wmm settings C 4 Command Line Reference July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 get set del keyword Description X password system password X reboot reboot system X exit logout from CLI X quit quit CLI Command Line Reference C 5 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 C 6 Command Line Reference July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Glossary Use the list below to find definitions for technical terms used in this manual 802 11 Standard 802 11 or IEEE 802 11 is a type of radio technology used for wireless local area networks WLANs It is a standard that has been developed by the IEEE Institute of Electrical and Electronic Engineers http standards ieee org The IEEE is an international organization that develops standards for hundreds of electronic and electrical technologies The organization uses a series of numbers like the Dewey Decimal system in libraries to differentiate between the various technology families The 802 subgroup of the IEEE develops standards for local and wide area networks with the 802 11 section reviewing and creating standards for wireless local area n
59. 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 authenticate the station and the station will be unable to communicate with either the 802 11 network or Ethernet network B 4 Wireless Networking Basics July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 This process is illustrated below 802 11b Authentication Shared Key Steps 1 Authentication gt Access Point request sent to AP FA od Cable or DLS modem 1 E lt 2 AP sends challenge text a Client 3 Client encrypts attempting challenge text and _ gt to connect sends it back to AP 4 AP decrypts and if correct mM _ k authenticates client 5 Client connects to network gt Figure B 2 Shared key authentication Overview of
60. ccatecresscvadcesaytdadenesdhaveseantesacdeeuteasiecsananeniaueuns BT UPS PCTS Mode snnniianas aaa a a aaa aaa aa eT Ad Hoc Mode Peer to P Pee ENAA T Network Name Extended Service Set Identification ESSID rrncsniaiinnanine BA Authentication and WEP Data Encryption 802 11 Authentication siaccaccssracinsininicanins EE Opan Oystem ANECA seas ccacancedddcianicicinscmnsoesnleranmeducdentege iacntantecciaasnnmeducraens B Shared Key Authentication soriisiinniosinisinsninanoe naain as BO Overview of WEP P rameterS oo iscccayssaccccntcasiegsencsadedegnesadueuisctaniacegeumoniccearanccans OO Key Size m E E A E T LORS WEP Cantiguiatian Botany Oe er ene E A AAA AA og PSU ee Wav I haia Sedindbiectcumedidictammandieandeas neemeeedecameaneaniee EOE uth tion Enterprise level User Authentication via 802 1x EAP and RADIUS WPA WPA2 Data Encryption Key siansaenaie E T Contents July 2005 v3 0 ls PAPAS Pariet aimait ANANE T B 16 Produc Support lor WEAN PAZ tcccnirickemananeieieai imi memeiien B 16 Supporting a Mixture of WPA WPA2 and WEP Wireless Clients is Discouraged B 16 Changes to Wireless Access Points 0 0 cccsceeceeeeeeeeeeeeeeeeeeesaeeeeeneeetaeeseenees B 17 Changes to Wireless Network Adapters ccccccceeeeeeneeececeeeeeeeeeeeeeeseneees B 17 Changes to Wireless Client Programs ceccseseesesesesreseneesaneeeeneeeeeeseneeeaees B 18 Appendix C Command Line Reference COMMAND BNE nypris
61. ce NETGEAR does not assume 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 July 2005 v3 0 Federal Communications Commission FCC Compliance Notice Radio Frequency Notice NETGEAR ProSafe Wireless Access Point Tested to Comply with FCC Standards FOR HOME OR OFFICE USE FCC ID PY3WG302 This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation Placement and Range Guidelines Indoors computers can connect over 802 11 wireless networks at a maximum range of 500 feet 152 4 m for 802 11b 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 In an elevated location such as a high shelf that is near the center of the
62. cess Point and the Radius Server while authenticating the supplicant 4 Click Apply to save your settings Basic Installation and Configuration 3 31 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 5 Click WEP WPA Settings in the Security menu WEP WPA Settings Wireless LAN Network Authentication Open System v Data Encryption Open System WPA with Radius WP h Radiy HWPA amp WPA2 with Radius D WAP Key 1 Key 2 Key 3 WPA2 PSK Key 4 Enable Wireless Client Security Separator No Yes Cancel Figure 3 19 WEP WPA Settings menu 6 Choose WAP and WPA2 with Radius from the list 7 Click Apply to save your settings How to Configure WPA2 PSK and WPA2 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 configuring WPA settings Note Not all wireless adapters support WPA2 Furthermore client software is required on the client Make sure your client card supports WPA2 Consult the product document for your wireless adapter and WPA2 client software for instructions on configuring WPA2 settings To co
63. ch channel WEP WPA WEP WPA setting AutoCell AutoCell setting Rogue AP Detection Rogue AP detection setting Management July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Statistics The Information Statistics screen provides various LAN and WLAN statistics Statistics Wired Ethernet Received Transmitted Packets 0 0 Bytes 0 0 Wireless Received Transmitted Unicast Packets 0 0 Broadcast Packets 0 0 Multicast Packets 0 0 Total Packets 0 0 Total Bytes 0 0 Figure 4 5 Wireless Access Point Status screen Table 4 1 Statistics Fields Field Description Wired Ethernet Received Transmitted Packets The number of packets sent since the WG302 was restarted Bytes The number of bytes sent since the WG302 was restarted Wireless Received Transmitted Unicast Packets The Unicast packets sent since the WG302 was restarted Broadcast Packets The Broadcast packets sent since the WG302 was restarted Multicast Packets The Multicast packets sent since the WG302 was restarted Total Packets The Wireless packets sent since the WG302 was restarted Total Bytes The Wireless bytes sent since the WG302 was restarted Refresh button Click the Refresh button to update the statistics on this screen Management 4 7 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Viewing a List of A
64. ck the Generate button The four key boxes will be automatically populated with key values e Manual enter ten hexadecimal digits any 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 es 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 How to Configure WPA with Radius 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 0 228 with the default user name of admin and default password of password or using whatever LAN address and password you have set up 3 22 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wi
65. cryption 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 40 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
66. ded 64 bit 128 bit and 152 bit keys are supported Full WPA and WPA2 support WPA and WPA2 enterprise class strong security with RADIUS and certificate authentication as well as dynamic encryption key generation WPA PSK and WPA2 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 WG302 can act as a client and obtain information from your DHPC server SNMP Support Support for Simple Network Management Protocol SNMP Management Information Base MIB management Key Features The NETGEAR WG302 provides solid functionality including these features AutoCell RF Management AutoCell provides advanced automated RF management that improves performance and enhances security Multiple Operating Modes Wireless Access Point Operates as a standard 802 11g Point to Point Bridge In this mode the WG302 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 WG302 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 WG302 s MAC address They then se
67. e they are easy to change Hidden Mode The SSID is not broadcast assuring only clients configured with the correct SSID can connect Secure Telnet Command Line Interface The Telnet command line interface enables direct access over the serial port and easy scripting of configuration of multiple WG302 across an extensive network via the Ethernet interface An SSH client is required Configuration Backup Configuration settings can be backed up to a file and restored Secure and Economical Operation Adjustable power output allows more secure or economical operation Power over Ethernet Power can be supplied to the WG302 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 Autosensing Ethernet Connection with Auto Uplink Interface Connects to 10 100 Mbps IEEE 802 3 Ethernet networks LED Indicators Power test LAN speed LAN activity and wireless activity are easily identified AutoCell The Self Organizing Wireless Network AutoCell an embedded control system for 802 11 WLANs AutoCell increases available bandwidth and reduces WLAN installation and operating costs significantly Introduction 2 3 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 AutoCell is completely automatic It is a continuous communication system that relies on a lightweight protocol to monitor chan
68. e S ASA ARE S NOS C 1 Glossary vi Contents July 2005 v3 0 Chapter 1 About This Manual This chapter describes the intended audience scope conventions and formats of this manual Audience Scope Conventions and Formats This reference manual assumes that the reader has basic to intermediate computer and Internet skills However basic computer network Internet firewall and VPN technologies tutorial information is provided in the Appendices and on the Netgear website This guide uses the following typographical conventions Table 1 1 Typographical Conventions italics Emphasis books CDs URL names bold User input fixed Screen text file and server names extensions commands IP addresses This guide uses the following formats to highlight special messages Ct Note This format is used to highlight information of importance or special interest This manual is written for the WG302 Access Point according to these specifications Table 1 2 Manual Scope Product Version NETGEAR ProSafe Wireless Access Point 802 11g WG302 Manual Publication Date July 2005 Note Product updates are available on the NETGEAR Inc Web site at gt http kbserver netgear com products WG302 asp About This Manual 1 1 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 How to Use This Manual The HTML version of this
69. e TKIP encryption process described above Wi Fi Protected Access for Public Access The intrinsic encryption and authentication schemes defined in Wi Fi Protected Access may also prove useful for Wireless Internet Service Providers WISPs offering Wi Fi public access in hot spots where 14 Glossary July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 secure transmission and authentication is particularly important to users unknown to each other The authentication capability defined in the specification enables a secure access control mechanism for the service providers and for mobile users not utilizing VPN connections Wi Fi Protected Access in Mixed Mode Deployment In a large network with many clients a likely scenario is that access points will be upgraded before all the Wi Fi clients Some access points may operate in a mixed mode which supports both clients running Wi Fi Protected Access and clients running original WEP security While useful for transition the net effect of supporting both types of client devices is that security will operate at the less secure level WEP common to all the devices Therefore organizations will benefit by accelerating the move to Wi Fi Protected Access for all Wi Fi clients and access points WiMAX An IEEE 802 16 Task Group that provides a specification for fixed broadband wireless access systems employing a point to multipoint PMP architect
70. e to other wanderers whether the home was receptive to drifters or was inhospitable War Driving War driving is the act of locating and possibly exploiting connections to wireless local area networks while driving around a city or elsewhere To do war driving you need a vehicle a computer which can be a laptop a wireless Ethernet card set to work in promiscuous mode and some kind of an antenna which can be mounted on top of or positioned inside the car Because a wireless LAN may have a range that extends beyond an office building an outside user may be able to intrude into the network obtain a free Internet connection and possibly gain access to company records and other resources Some people have made a sport out of war driving in part to demonstrate the ease with which wireless LANs can be compromised With an omnidirectional antenna and a geophysical positioning system GPS the war driver can systematically map the locations of 802 11b wireless access points WEP Wired Equivalent Privacy Basic wireless security provided by Wi Fi In some instances WEP may be all a home or small business user needs to protect wireless data WEP is available in 40 bit also called 64 bit or in 108 bit also called 128 bit encryption modes As 108 bit encryption provides a longer algorithm that takes longer to decode it can provide better security than basic 40 bit 64 bit encryption Wi Fi Wireless Fidelity Another name for IEEE 802 11b
71. eatures were either not yet ready for market or required hardware upgrades to implement What are the Key Features of WPA and WPA2 Security The following security features are included in the WPA and WPA2 standard e WPA and WPA2 Authentication e WPA and WPA2 Encryption Key Management Temporal Key Integrity Protocol TKIP Michael message integrity code MIC AES support WPA2 requires hardware support e Support for a mixture of WPA WPA2 and WEP wireless clients to allow a migration strategy but mixing WEP and WPA WPA2 is discouraged These features are discussed below WPA WPA2 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 WPA2 comes from an integrated sequence of operations that encompass 802 1 X 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 a
72. ed 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 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 July 2005 v3 0 Reference Manual for
73. ed 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Is WPA WPA2 Perfect WPA WPA2Z 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 WPA2 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 WPA2 Starting in August 2003 NETGEAR
74. eless Client Association These features are discussed below July 2005 v3 0 Advanced Configuration Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 How to Configure a WG302 as a Point to Point Bridge AP in Point to Point AP in Bridge Mode Point to Point i f Bridge Mode Hub or AN INTERNET Sn zje Lan S LAN rcs Segment 2 Segment 1 Figure 5 7 Point to Point Bridge Configure the WG302 AP1 on LAN Segment 1 in Point to Point Bridge mode 2 Configure the WG302 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 WG302 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 Advanced Configuration 5 9 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 How to Configure Multi Point Wirel
75. en by clicking on Remote Management under Management on the main menu Remote Management Remote Console Secure Shell SSH Enable Disable SNMP SNMP Enable Disable Public Community Name public Private Community Name private IP Address to Receive Traps oO jo jo jo Apply Cancel Figure 4 1 Remote Management screen Enter the Remote Management information e Remote Console Secure Shell SSH If set to Enable the Wireless Access Point will only allow remote access via Secure Shell and Secure Telnet The default is Enable e SNMP Enable SNMP to allow the SNMP network management software such as HP OpenView to manage the wireless access point via SNMPv1 v2 protocol e Public Community Name The community string to allow the SNMP manager to read the wireless access point s MIB objects The default is public Management 4 1 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 e Private Community Name The community string to allow the SNMP manager to read and write the wireless access point s MIB objects The default is private e IP address to Receive Traps The IP address of the SNMP manager to receive traps sent from the wireless access point The default is 0 0 0 0 Using the Secure Telnet Interface The WG302 includes a secure Telnet command line interface CLI You can access the CLI from a secure Telnet client over the Ethernet port or ove
76. eric 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 WG302 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 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 automatically change to the access point which has the least interference or best performance This capability is called roaming Note The AutoCell feature enhances the roaming interference and channel selection of an extended wireless network 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 Dis
77. ertise their support of WPA WPA2 wireless APs send the beacon frame with a new 802 11 WPA WPA2 information element that contains the wireless AP s security configuration encryption algorithms and wireless security configuration information The WPA WPA2 two phase authentication Open system then 802 1x EAP with RADIUS or preshared key TKIP e Michael e AES WPA2 To upgrade your wireless access points to support WPA WPA2 obtain a WPA WPA2 firmware update from your wireless AP vendor and upload it to your wireless AP Changes to Wireless Network 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 WPA2 information element Wireless clients must be able to process the WPA WPA2 information element and respond with a specific security configuration The WPA WPA2 two phase authentication Open system then 802 1x supplicant EAP or preshared key e TKIP e Michael e AES WPA2 To upgrade your wireless network adapters to support WPA WPA2 obtain a WPA WPA2 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 ad
78. ess Access Point 802 11g WG302 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 WG302 Access Point e WAG511 ProSafe 108 Mbps Dual Band PC Card e WAG311 ProSafe 108 Mbps Dual Band PCI Card e WG311T 802 11g 108 Mbps Wireless PCI Card e WGS51IT 802 11g 108 Mbps Wireless CardBus Adapter e WG511 802 11g 54 Mbps Wireless CardBus Adapter e WGI111 801 11g 54 Mbps Wireless Bridge System Requirements Before installing the WG302 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
79. ess Bridging AP in Point to Point Bridge Mode AP in Point to Point Bridge Mode Hub or Switch Router BPm 192 168 0 1 Master AP in Point to Multi Point 4 5 Bridge Mode LAN oJ LAN rcs Hub or Switch Segment 3 Segment 1 E LAN HH Segment 2 Figure 5 8 Multi Point bridging 1 Configure the Operating Mode of the WG302 Access Points WG302 AP1 on LAN Segment 1 in Point to Point Bridge mode with the Remote MAC Address of AP2 Because it is in the central location configure WG302 AP2 on LAN Segment 2 in Point to Multi Point Bridge mode The MAC addresses of the adjacent APs are required in AP2 Configure the WG302 AP3 on LAN 3 in Point to Point Bridge mode with the Remote MAC Address of AP2 2 Verify the following parameters for all access points e Verify that the LAN network configuration the WG302 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 WG302 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 5 10 Advanced Configuration July 2005 v3 0 Reference Manual for the NETG
80. etworks Wi Fi 802 11 is composed of several standards operating in different radio frequencies 802 11b is a standard for wireless LANs operating in the 2 4 GHz spectrum with a bandwidth of 11 Mbps 802 1 1a is a different standard for wireless LANs and pertains to systems operating in the 5 GHz frequency range with a bandwidth of 54 Mbps Another standard 802 11g is for WLANS operating in the 2 4 GHz frequency but with a bandwidth of 54 Mbps 802 11a Standard An IEEE specification for wireless networking that operates in the 5 GHz frequency range 5 15 GHz to 5 85 GHz with a maximum 54 Mbps data transfer rate The 5 GHz frequency band is not as crowded as the 2 4 GHz frequency because the 802 11a specification offers more radio channels than the 802 11b These additional channels can help avoid radio and microwave interference 802 11b Standard International standard for wireless networking that operates in the 2 4 GHz frequency range 2 4 GHz to 2 4835 GHz and provides a throughput of up to 11 Mbps This is a very commonly used frequency Microwave ovens cordless phones medical and scientific equipment as well as Bluetooth devices all work within the 2 4 GHz frequency band 802 11d Standard 802 11d is an IEEE standard supplementary to the Media Access Control MAC layer in 802 11 to promote worldwide use of 802 11 WLANs It will allow access points to communicate information on the permissible radio channels with acceptable po
81. ference 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 WG302 Access Point connects to your LAN via twisted pair Category 5 Ethernet cable with RJ 45 connectors 3 2 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Default Factory Settings When you first receive your WG302 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 WG302 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 Built in DHCP server DHCP server disabled IP Configuration IP Address 192 168 0 228 if DHCP server is unavailable Subnet Mask 255 255 255 0 Gateway 0 0 0 0 Network Name SSID NETGEAR Broadcast Network Name SSID Enabled
82. fication for CSMA CD based Ethernet networks or 802 5 the specification for token ring networks 802 11 defines the standard for wireless LANs encompassing three incompatible non interoperable technologies Frequency Hopping Spread Spectrum FHSS Direct Sequence Spread Spectrum DSSS and Infrared WECA s Wireless Ethernet Compatibility Alliance now Wi Fi Alliance focus is on 802 11b an 11 Mbps high rate DSSS standard for wireless networks Infrastructure mode A client setting providing connectivity to an access point AP As compared to Ad Hoc mode whereby PCs communicate directly with each other clients set in Infrastructure Mode all pass data through a central AP The AP not only mediates wireless network traffic in the immediate neighborhood but also provides communication with the wired network See Ad Hoc and AP IP Internet Protocol address A 32 bit number that identifies each sender or receiver of information that is sent across the Internet An IP address has two parts an identifier of a particular network on the Internet and an identifier of the particular device which can be a server or a workstation within that network ISO Network Model A network model developed by the International Standards Organization ISO that consists of seven different levels or layers By standardizing these layers and the interfaces in between different portions of a given protocol can be modified or changed as technologies advance
83. gement 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 WPA2 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 the 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Temporal Key Integrity Protocol TKIP WPA uses TKIP to provide importa
84. ges on the wireless domain while keeping overhead very low Among AutoCell s inherent advantages e Elimination of manual site surveys and channel maps e Dynamic load balancing e Plug and play implementation e Transparent fault recovery and failover Since AutoCell is completely self organizing it holds human intervention to a minimum That reduces the people costs associated with deployment management and maintenance making 802 11 WLANs practical efficient and cost effective 802 11g Standards based Wireless Networking The NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 WG302 supports the following wireless features e Distributed coordinated function CSMA CA Back off procedure ACK procedure retransmission of unacknowledged frames 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 WG302 can connect to a standard Ethernet network The LAN interface is autosensing and capable of full duplex or half duplex operation 2 4 Introduction July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wirel
85. hat enables data to be encrypted and then decrypted so it can be safely shared among members of a network WEP uses an encryption key that automatically encrypts outgoing wireless data On the receiving side the same encryption key enables the computer to automatically decrypt the information so it can be read Enhanced Data Encryption through TKIP To improve data encryption Wi Fi Protected Access utilizes its Temporal Key Integrity Protocol TKIP 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 WEP known vulnerabilities Enterprise level User Authentication via 802 1x and EAP WEP has almost no user authentication mechanism To strengthen user authentication Wi Fi Protected Access implements 802 1x and the Extensible Authentication Protocol EAP Together these implementations provide a framework for strong user authentication This framework utilizes a central authentication server such as RADIUS to authenticate each user on the network before they join it and also employs mutual authentication so that the wireless user doesn t accidentally join a rogue network that might steal its network credentials Glossary 5 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG30
86. he correct NETGEAR power adapter supplied with your access point Troubleshooting 6 1 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 WG302 Contact NETGEAR technical support 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 setting
87. he 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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
88. icant 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 WPA2 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 WPA WPA2 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 Ports Closed WPA WPA2 WPA WPA2 Until enabled enabled Authenticated RADIUS Server p i Access Point hes z uthority ion wih using Login for wer
89. iently controls the way multiple devices use the same network so that each can operate at optimal performance A switch acts as a networks traffic cop rather than transmitting all the packets it receives to all ports as a hub does a switch transmits packets to only the receiving port TCP Transmission Control Protocol A protocol used along with the Internet Protocol IP to send data in the form of individual units called packets between computers over the Internet While IP takes care of handling the actual delivery of the data TCP takes care of keeping track of the packets that a message is divided into for efficient routing through the Internet For example when a web page is downloaded from a web server the TCP program layer in that server divides the file into packets numbers the packets and then forwards them individually to the IP program layer Although each packet has the same destination IP address it may get routed differently through the network At the other end TCP reassembles the individual packets and waits until they have all arrived to forward them as a single file Glossary 11 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 TCP IP The underlying technology behind the Internet and communications between computers in a network The first part TCP is the transport part which matches the size of the messages on either end and guarantees that the correct message ha
90. ight goes on The LAN light of the wireless access point is lit when connected to a powered on computer Basic Installation and Configuration 3 5 July 2005 v3 0 3 6 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 a 2 CONFIGURE LAN AND WIRELESS ACCESS Configure the WG302 Ethernet port for LAN access Name Connect to the WG302 by opening your browser and entering hitp 192 168 0 228 in the address field A login window like the one shown below opens z NETGEAR ProSafe Wireless Access Point W302 admin Password Figure 3 2 Login window in lower case letters When prompted enter admin for the user name and password for the password both July 2005 v3 0 Basic Installation and Configuration Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 e The Web browser will then display the WG302 settings page General Basic Settings Wireless Settings WEPANPA Settings Radius Server Settings Access Control Change Password Remote Management Upgrade Firmware BackupRestore Settings Reboot AP Activity Log Available Wireless Station List Statistics Rogue AP Detection IP Settings Hotspot Settings Wireless Settings Access Point Settings Knowledge Base Documentation Logout NETGEAR ProSafe Wireless Access Point 050 settings General Access Point Information Access Point Name netgear
91. indow displays the Access Point system activity You may click Refresh to update the display or Click Save As To save the log contents into a file on your PC click Save As and save the file to a disk drive 4 4 Management July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Viewing General Log Station and Statistical Information The General information screen provides a summary of the current WG302 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 MAC Address Country Region Firmware Version Access Point Mode Current IP Settings IP Address Subnet Mask Default Gateway DHCP Client Current Wireless Settings Operating Mode Wireless Network Name SSID Channel Frequency WEP WPA AutoCell Rogue AP Detection netgear 4f35e 00 09 5b 7 4 f3 5e United States 4 1 2 Access Point 192 168 0 228 255 255 255 0 0 0 0 0 Enable Auto 119 11b NETGEAR 6 2 442GHz Disable Enable Disable Figure 4 4 Wireless Access Point Status screen Management July 2005 v3 0 4 5 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 This screen shows the following parameters Table 4 1 General Information Fields Field Description Access Point Information Access Point Name
92. ing 4 10 Management July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Configuration File Management The WG302 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 Settings link to bring up the menu shown below Backup Restore Settings Back up a copy of the current settings to a file Backup Retrieve backed up settings from a file File LBrowse _ Retrieve Restore factory default settings Figure 4 7 Settings Backup menu The three options displayed are described in the following sections 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 WG302 cfg Management 4 11 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 To restore your settings from a saved configuration file enter the full p
93. ings You can allow all HTTP TCP port 80 requests to be captured and re directed to the URL you specify Hotspot Settings 7 Enable HTTP Redirect URL l Cancel Figure 5 5 Hotspot Settings screen Enable HTTP Redirect Enable this if you want all HTTP TCP port 80 requests to be captured and re directed to the URL you specify URL Enter the URL of the Web Server you wish HTTP requests to be redirected to Advanced Configuration 5 7 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Enabling Wireless Bridging and Repeating The NETGEAR ProSafe Wireless Access Point 802 11g WG302 lets you build large bridged wireless networks Advanced Access Point Settings Access Point Mode Enable 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 HH Remote MAC Address 2 Remote MAC Address3 Remote MAC Address 4 Fl L Repeater with Wireless Client Association Remote MAC Address 1 Remote MAC Address 2 Remote MAC Address 3 Remote MAC Address 4 br Figure 5 6 Advanced Wireless Settings Access Point Mode settings Examples of wireless bridged configurations are Client Access Point to Access Point the default Point to Point Bridge Multi Point Bridge Repeater with Wir
94. ion 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 either 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 WPA2 Data Encryption Key Mana
95. ith multiple antennas at the transmitter and the receiver side to improve the performance of the wireless link NAT Network Address Translation A network capability that enables a houseful of computers to dynamically share a single incoming IP address from a dial up cable or xDSL connection NAT takes the single incoming IP address and creates new IP address for each client computer on the network Network name Identifies the wireless network for all the shared components During the installation process for most wireless networks you need to enter the network name or SSID Different network names are used when setting up your individual computer wired network or workgroup 8 Glossary July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 NIC Network Interface Card A type of PC adapter card that either works without wires Wi Fi or attaches to a network cable to provide two way communication between the computer and network devices such as a hub or switch Most office wired NICs operate at 10 Mbps Ethernet 100 Mbps Fast Ethernet or 10 100 Mbps dual speed High speed Gigabit and 10 Gigabit NIC cards are also available See PC Card PC card also called PCMCIA A removable credit card sized memory or I O input output device that fits into a Type 2 PCMCIA standard slot PC Cards are used primarily in PCs portable computers PDAs and laptops PC Card peripherals include Wi Fi card
96. itional level of privacy for enterprises In this mode AutoCell shrinks the size of coverage to the minimum to reach clients but also shrinks the size of the beacons that access points use to announce their presence This mode makes an enterprise wireless LAN nearly invisible to users outside an office building AutoCell clients such as the NETGEAR WAGS11 are highly recommended for Enhanced RF Security Installing the WG302 Access Point Before installing the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 5 1 SET UP THE WG302 ACCESS POINT Tip Before mounting the WG302 in a high location first set up and test the WG302 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 WG302 to the computer d Turn on your computer connect the power adapter to the WG302 and verify the following The PWR power l
97. 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 Applying 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Table B 2 802 11b g Radio Frequency Channels Channel Center Frequency Frequency Spread 4 2427 MHz 2414 5 MHz 2439 5 MH
98. less Clients The default advanced IP wireless settings usually work well If you want the AP to act as a DHCP server gateway for wireless clients use this feature The AP can accept both static and DHCP clients Advanced IP Settings for Wireless Clients Use AP as DHCP Server Accept DHCP Enabled Wireless Clients Only Accept Both DHCP Enabled and Static IP Configured Wireless Clients Starting IP Address Ending IP Address Gateway IP Address Primary DNS Server Secondary DNS Server Primary WINS Server Secondary WINS Server Lease Figure 5 1 Advanced IP Settings for Wireless Clients screen Advanced Configuration 5 1 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Understanding Advanced Wireless Settings The advanced wireless settings menu enables configuration of the following e AutoCell RF management e Wi Fi multimedia WMM setup e Hotspot settings e Advanced wireless parameters These options are discussed below AutoCell RF Management AutoCell provides advanced RF wireless management features that improve performance and enhance security Table 5 1 What does AutoCell do Problem AutoCell Settings Erosion of privacy Optional setting allows Wi Fi network to be nearly undetectable by neighbors and hackers Enhance RF Privacy Default Disable Diminishing performance from APs and clients load balance traffic across under utilized m
99. lient setting that provides independent peer to peer connectivity in a wireless LAN An alternative set up is one where PCs communicate with each other through an AP See access point and Infrastructure mode Bandwidth The amount of transmission capacity that is available on a network at any point in time Available bandwidth depends on several variables such as the rate of data transmission speed between networked devices network overhead number of users and the type of device used to connect PCs to a network It is similar to a pipeline in that capacity is determined by size the wider the pipe the more water can flow through it the more bandwidth a network provides the more data can flow through it Standard 802 11b provides a bandwidth of 11 Mbps 802 11a and 802 11g provide a bandwidth of 54 Mbps Bits per second bps A measure of data transmission speed over communication lines based on the number of bits that can be sent or received per second Bits per second bps is often confused with bytes per second Bps While bits is a measure of transmission speed bytes is a measure of storage capability 8 bits make a byte so if a wireless network is operating at a bandwidth of 11 megabits per second 11 Mbps or 11 Mbits sec it is sending data at 1 375 megabytes per second 1 375 Mbps Bluetooth Wireless Technology A technology specification for linking portable computers personal digital assistants PDAs and mobile phones for
100. light Saving Time Current Time Fri Dec 31 21 58 09 1999 Figure 3 4 Basic Settings menu e Configure the settings appropriate for your network 3 8 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 Wireless LAN M Turn Radio On Wireless Network Name SSID NETGEAR Broadcast Wireless Network Name SSID ves CNo Operating Mode Auto 11g 11b Channel Frequency 4 2 427C Data Rate Output Power Apply Cancel 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 Regulatory Domain 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 WG302 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 WG302 ACCESS POINT a Disconnect the WG302 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 ce
101. multimedia devices Proxy server Used in larger companies and organizations to improve network operations and security a proxy server is able to prevent direct communication between two or more networks The proxy server forwards allowable data requests to remote servers and or responds to data requests directly from stored remote server data Glossary 9 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Range The distance away from your access point that your wireless network can reach Most Wi Fi systems will provide a range of a hundred feet or more Depending on the environment and the type of antenna used Wi Fi signals can have a range of up to mile Residential gateway A wireless device that connects multiple PCs peripherals and the Internet on a home network Most Wi Fi residential gateways provide DHCP and NAT as well RJ 45 Standard connectors used in Ethernet networks Even though they look very similar to standard RJ 11 telephone connectors RJ 45 connectors can have up to eight wires whereas telephone connectors have only four Roaming Moving seamlessly from one AP coverage area to another with your laptop or desktop with no loss in connectivity Rogue Access Point Rogue AP is a term used to describe an unauthorized access point that is connected on the main home or corporate network or operating in a stand alone mode in a parking lot or in a neighbor s building
102. n XP Funk WPA WPA2 enabled For example a Meetinghouse AP RADIUS server oO S Supplicant Authenticator Authenticating Server Identity Identity G gt Request Credentials Request Credentials t Credentials Authentication lt Key Uncontrolled Port LAN Resources Credentials gt gt uthentication Key s Controlled Port Figure B 4 802 1x Authentication Sequence The AP sends Beacon Frames with WPA WPA2 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 The access point replies with an EAP request identity message Wireless Networking Basics B 13 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 authenticat
103. na Typically an individual in building access point provides a maximum connectivity area with about a 300 foot radius The NETGEAR ProSafe Wireless Access Point 802 11g WG302 can support a small group of users in a range of several hundred feet Most access points are rated between 30 70 users simultaneously The NETGEAR ProSafe Wireless Access Point 802 11g WG302 acts as a bridge between the wired LAN and wireless clients Connecting multiple WG302 Access Points via 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 ProSafe Wireless Access Point 802 11g WG302 allows packet transmission at up to 108 Mbps or at reduced speeds to compensate for distance or electromagnetic interference Introduction 2 1 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Key Features The WG302 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 inclu
104. nd Shared Secret is required for communication with Radius Server A Secondary Radius Server can be configured which is used on failure on Primary Radius Server e IP Address The IP address of the Radius Server The default is 0 0 0 0 Port Number Port number of the Radius Server The default is 1812 e Shared Secret This is shared between the Wireless Access Point and the Radius Server while authenticating the supplicant e Re authentication Time The time interval in seconds after which the supplicant will be authenticated again with the Radius Server The default is 3600 seconds e Global key Re Key Time Check on this option to enable Re keying of Global Key The Global Key Re Key can be done based on time interval in seconds or number of packets exchanged using the global key The default is 3600 seconds e Update if any station disassociates Check on this option to refresh global key when any stations disassociated with wireless Access Point e Accounting Radius Server Configuration This configuration is required for accounting using Radius Server IP Address Port No and Shared Secret is required for communication with Radius Server A Secondary Radius Server can be configured which is used on failure on Primary Radius Server IP Address The IP address of the Radius Server The default is 0 0 0 0 Port Number Port number of the Radius Server The default is 1813 e Shared Secret This is shared between the Wireless Ac
105. nd all traffic to this Master rather than communicate directly with each other WEP should be used to protect this traffic 2 2 Introduction July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Wireless Repeater In this half duplex mode the WG302 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 Wireless Multimedia WMM support WMM is a subset of the 802 11e standard WMM allows wireless traffic to have a range of priorities depending on the kind of data Time dependent information such as video or audio will have a higher priority than normal traffic For WMM to function correctly wireless clients must also support WMM Rogue Access Point detection For enhanced security you can scan the wireless network to detect rogue access points Hotspot settings You can allow all HTTP TCP port 80 requests to be captured and re directed to the URL you specify Upgradeable Firmware Firmware is stored in a flash memory and can be upgraded easily using only your Web browser and can be upgraded remotely Access Control The Access Control MAC address filtering feature can ensure that only trusted wireless stations can use the WG302 to gain access to your LAN Simple Configuration If the default settings are unsuitabl
106. neling with WEP with the benefit of easier administration and use This is similar to 802 1x support and requires a RADIUS server in order to implement The Wi Fi Alliance will call this WPA Enterprise One variation of WPA is called WPA Pre Shared Key or WPA PSK for short this provides an authentication alternative to an expensive RADIUS server WPA PSK is a simplified but still powerful form of WPA most suitable for home Wi Fi networking To use WPA PSK a person sets a static key or passphrase as with WEP But using TKIP WPA PSK automatically changes the keys at a preset time interval making it much more difficult for hackers to find and exploit them The Wi Fi Alliance will call this WPA Personal Wi Fi Protected Access and IEEE 802 111 Comparison Wi Fi Protected Access will be forward compatible with the IEEE 802 111 security specification currently under development by the IEEE Wi Fi Protected Access is a subset of the current 802 11i draft taking certain pieces of the 802 11i draft that are ready to bring to market today such as its implementation of 802 1x and TKIP These features can also be enabled on most existing Wi Fi CERTIFIED products as a software upgrade The main pieces of the 802 111 draft that are not included in Wi Fi Protected Access are secure IBSS secure fast handoff secure de authentication and disassociation as well as enhanced encryption protocols such as AES CCMP These features are either not yet ready for
107. nfigure WPA PSK and WPA2 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 3 32 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 2 Click WEP WPA Settings in the Security menu of the WG302 WEPAWPA Settings Wireless LAN Network Authentication Open System gt Data Enc ion mi _ Shared Key Passphrase Legacy 802 1 WPA with Radius WPA2 with Radius WPA amp WPA2 with Radius WPA PSK WPA PSK WPA PSK amp WPA2 PSK D Open System Enable Wireless Client Security Separator No Cyes Cancel Figure 3 20 WEP WPA Settings menu 3 Choose WPA PSK and WPA2 PSK from the list 4 Enter the pre shared key passphrase 5 Click Apply to save your settings Basic Installation and Configuration 3 33 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 3 34 Basic Installation and Configuration July 2005 v3 0 Chapter 4 Management This chapter describes how to use the management features of your NETGEAR ProSafe Wireless Access Point 802 11g WG302 These features can be found by clicking on the Maintenance heading in the Main Menu of the browser interface Remote Management Access the Remote Management scre
108. nt 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 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 AES Support for WPA2 One of the encryption methods supported by WPA2 is the advanced encryption standard AES although AES support will not be requir
109. nter 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 WG302 Access Point to a LAN port on your router switch or hub Basic Installation and Configuration 3 9 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Note By default WG302 is set to with the DHCP client disabled If your network uses dynamic IP addresses you will need to change this 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 Wireless LAN lights and 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 WG302 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 3 10 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 How to Log In to the WG302 Using Its
110. ome 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 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 How Does WPA Compare to WPA2 IEEE 802 111 WPA is forward compatible with the WPA2 security specification WPA is a subset of WPA2 and used certain pieces of the early 802 111 draft such as 802 1x and TKIP The main pieces of WPA2 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 f
111. or systems requirements are altered The seven layers are e Physical e Data Link e Network e Transport e Session e Presentation e Application The IEEE 802 11 Standard encompasses the physical layer PHY and the lower portion of the data link layer The lower portion of the data link layer is often referred to as the Medium Access Controller MAC sublayer Glossary 7 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 MAC Media Access Control Every wireless 802 11 device has its own specific MAC address hard coded into it This unique identifier can be used to provide security for wireless networks When a network uses a MAC table only the 802 11 radios that have had their MAC addresses added to that network s MAC table will be able to get onto the network Mesh Networks Also called mesh topology mesh is a network topology in which devices are connected with many redundant interconnections between network nodes In a full mesh topology every node has a connection to every other node in the network Mesh networks may be wired or wireless Mesh network In a wireless mesh example each of the spheres below represent a mesh router Corporate servers and printers may be shared by attaching to each mesh router For wireless access to the mesh an access point must be attached to any one of the mesh routers Multiple Input Multiple Output MIMO MIMO refers to radio links w
112. ork Also you can extend the range of the wireless network with NETGEAR wireless antenna accessories 5 12 Advanced Configuration July 2005 v3 0 Chapter 6 Troubleshooting This chapter provides information about troubleshooting your NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 WG302 on e Have I connected the wireless access point correctly Go to Installing the WG302 Access Point on page 3 5 e I cannot remember the wireless access point s configuration password Go to Changing the Administrator Password on page 4 12 Note For up to date WG302 installation details and troubleshooting guidance visit gt http kbserver netgear com products WG302 asp If you have trouble setting up your WG302 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 t
113. r loading a new page If the browser is interrupted the upload may fail corrupt the software and render the WG302 completely inoperable You cannot perform the firmware upgrade from a workstation connected to the WG302 via a wireless link The firmware upgrade must be performed via a workstation connected to the WG302 via the Ethernet LAN interface The software of the WG302 Access Point is stored in FLASH memory and can be upgraded as new software is released by NETGEAR Upgrade files can be downloaded from Neater s Web site If the upgrade file is compressed ZIP file you must first extract the image RMG 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 WG302 must support HTTP uploads such as Microsoft Internet Explorer 6 0 or above or Netscape Navigator 4 78 or above 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 RMG 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 upgrad
114. r 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 Complete PDF Manual link at the top left of any page Click the Complete PDF Manual link at the top left of any page in the manual The PDF version of the complete manual opens in a browser window 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 About This Manual 1 3 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 1 4 About This Manual July 2005 v3 0 Chapter 2 Introduction This chapter introduces the NETGEAR NETGEAR ProSafe Wireless Access Point 802 11g WG302 Minimal prerequisites for installation are presented in System Requirements on page 2 5 About the NETGEAR ProSafe Wireless Access Point 802 11g WG302 The NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 WG302 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 anten
115. r the serial console port Note You must use a secure Telnet client such as Absolute Telnet Also when you configure the client use the SSH1 3DES option If you use the Telnet client to connect over the Ethernet port use the IP address of the WG302 as the host name How to Use the CLI via the Console Port 1 Using the null modem cable connect a VT100 ANSI terminal or a workstation to the port labeled Console If you attached a PC Apple Macintosh or UNIX workstation start a secure terminal emulation program 2 Configure the terminal emulation program to use the following settings Baud rate 9 600 bps Data bits 8 Parity none Stop bit 1 Flow control none These settings appear below the connector on the back panel 4 2 Management July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Press the return key and the screen below should appear X Untitled tnt modified AbsoluteTelnet 2 13 UNREGISTERED EVALUATION 28 d MBR File Edit Options Transfer Help Buy Now Courier New 7_myl2l ixdp425 228 Tue Nov 25 19 57 46 CST 2003 armvSb unknown screen 85x7 AUTO vt100 connected SSH1 Figure 4 2 Secure Telnet Client The login name is admin and password is the default password After successful login the screen should show the Access Point Name gt prompt In this example the prompt is netgear74F35E Enter help to displ
116. reless Access Point 802 11g WG302 2 Click Radius Server Settings in the Security menu Radius Server Settings Authentication Access Control Radius Server Login Primary IP Address ob fb b n p Port Number fisiz Shared Secret E Secondary IP Address p M fo fo fo Port Number fisiz Shared Secret o Reauthentication Time E 600 Seconds I Global Key Update every 3600 Seconds C every fiooo x1000 Packets I Update if any station disassociates Accounting Radius Server Login Primary IP Address fo k fo i p fo Port Number is13 Shared Secret e e Secondary P Address jo 5 fo i p n p Port Number s13 Shared Secret D Cancel Figure 3 12 Radius Server Settings 3 Enter the Radius settings e Authentication Access Control Radius Server Configuration This configuration is required for authentication using Radius IP Address Port No and Shared Secret is required for communication with Radius Server A Secondary Radius Server can be configured which is used on failure on Primary Radius Server e IP Address The IP address of the Radius Server The default is 0 0 0 0 Port Number Port number of the Radius Server The default is 1812 Basic Installation and Configuration 3 23 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 e Shared Secret This is shared between the Wireless Access Point and the Radius Server while authenticating the
117. ress X X port radius port number X X secret radius secret string X X account account radius setting X X primary primary x X ipaddr radius IP address x X port radius port number X X secret radius secret string X X secondary secondary X X ipaddr radius IP address X X port radius port number X X secret radius secret string X X ssh enable remote SSH access X X snmp SNMP setting X X server enable SNMP agent X X trap server SNMP TrapServer IP address X X read community SNMP ReadCommunity X X write community SNMP WriteCommunity X X description SNMP System Description X X log syslog setting X X client enable syslog client X X ipaddr syslog server IP address X X port syslog server port number X X http redirection HTTP Redirection setting X X server enable HTTP redirection X X url HTTP redirection URL C 2 Command Line Reference July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 get set del keyword Description X X X wlan wireless setting X version wireless driver version X X radio enable wireless radio Xx X wirelessmode wireless mode X X channel wireless channel depends on country and wireless mode X X rate wireless transmission date
118. ru 05 NETGEAR 9 dBi omnidirectional NETGEAR 1 5m to30m 19 dBm 9 dBi ant ANT2409 outdoor indoor ACC 10314 01 thru 05 NETGEAR 5 dBi ceiling wall NETGEAR 1 5m to30m 19 dBm 5 dBi ant ANT2405 indoor ACC 10314 01 thru 05 WG302 maximum radiated power in North America and Australia 20 dBm cable loss antenna gain Please go to www netgear com go wg302_fcc for an updated list of wireless accessories approved to be used with the WG302 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 July 2005 v3 0 for the system according to the Canadian regulations For further information contact your local Industry Canada office Product and Publication Details Model Number WG302 Publication Date July 2005 Product Family wireless access point Product Name NETGEAR ProSafe Wireless Access Point 802 11g WG302 Home or Business Product Business Language English Publication Part Number 202 10008 03 vi July 2005 v3 0 Contents Chapter 1
119. rvice Set Identification SSID identifies the wireless local area network NETGEAR is the default WG302 SSID However you may customize it by using up to 32 alphanumeric characters Write your customized SSID on the line below SSID 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 and have the same keys in the same positions as those in the WG302 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 WPA2 PSK Pre Shared Key Record the WPA PSK key Record the WPA2 PSK key 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 WPA2 RADIUS Settings For WPA2 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 WG302 3 18 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the
120. s memory cards modems NICs hard drives etc PCI adapter A high performance I O computer bus used internally on most computers Other bus types include ISA and AGP PCIs and other computer buses enable the addition of internal cards that provide services and features not supported by the motherboard or other connectors Peer to peer network also called Ad Hoc in WLANs A wireless or wired computer network that has no server or central hub or router All the networked PCs are equally able to act as a network server or client and each client computer can talk to all the other wireless computers without having to go through an access point or hub However since there is no central base station to monitor traffic or provide Internet access the various signals can collide with each other reducing overall performance PHY The lowest layer within the OSI Network Model It deals primarily with transmission of the raw bit stream over the PHYsical transport medium In the case of wireless LANs the transport medium is free space The PHY defines parameters such as data rates modulation method signaling parameters transmitter receiver synchronization etc Within an actual radio implementation the PHY corresponds to the radio front end and baseband signal processing sections Plug and Play A computer system feature that provides for automatic configuration of add ons and peripheral devices such as wireless PC Cards printers scanners and
121. s been received The IP part is the user s computer address on a network Every computer in a TCP IP network has its own IP address that is either dynamically assigned at startup or permanently assigned All TCP IP messages contain the address of the destination network as well as the address of the destination station This enables TCP IP messages to be transmitted to multiple networks subnets within an organization or worldwide TKIP A security feature that is a WEP enhancement Temporal Key Integrity Protocol and Message Integrity Check MIC is a modification of WEP to defend against known attacks WEP four patches for key mixing message integrity rekeying initialization vector protection USB Universal Serial Bus A high speed bidirectional serial connection between a PC and a peripheral that transmits data at the rate of 12 megabits per second The new USB 2 0 specification provides a data rate of up to 480 Mbps compared to standard USB at only 12 Mbps 1394 FireWire and iLink all provide a bandwidth of up to 400 Mbps VoIP Voice over IP Voice transmission using Internet Protocol to create digital packets distributed over the Internet VoIP can be less expensive than voice transmission using standard analog packets over POTS Plain Old Telephone Service VPN Virtual Private Network A type of technology designed to increase the security of information transferred over the Internet VPN can work with either wired or wirele
122. s 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 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 cannot connect to the WG302 to configure it Check these items The WG302 is properly installed LAN connections are OK and it is powered on Check that the LAN port LED is green to verify that the Ethernet connection is OK The default configuration of the WG302 is for a static IP address of 192 168 0 228 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 WG302 to connect ensure that your computer and the WG302 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 WG302 The WG302 default IP Address is 192 168 0 228 and the default Subnet Mask is 255 255 255 0 If you are not sure about these settings
123. ss Point 802 11g WG302 get set del keyword Description X X X 4 4th remote AP address for repeater mode X X X acl wireless access control X X mode enable wireless access control ACL X X X list x all delete only all local ACL address X X X null edit local ACL address X X rogue ap detection Rogue AP Detection X X X identified ap list identified AP list X all empty identified AP list xX X X null edit identified AP list X association list of associated wireless clients X wlanstats wlan statistics X X authentication wireless authentication type X X encryption wireless data encryption X X X key wireless wep key setting X X type wireless wep key type X X default wireless wep default key index X X X passphrase wireless wep passphrase key X X X 1 wireless wep key 1 X X X 2 wireless wep key 2 X X X 3 wireless wep key 3 X X X 4 wireless wep key 4 X X X wpa wireless WPA setting X X X psk wireless pre shared key PSK for WPA PSK X X reauthtime wireless WPA re auth period in seconds X X keyupdate enable wireless WPA global key update X x mode wireless WPA global key update condition X X interval wireless WPA global key update interval X x sec wireless WPA glo
124. ss networks as well as with dial up connections over POTS VPN creates a private encrypted tunnel from the end user s computer through the local wireless network through the Internet all the way to the corporate servers and database War Chalking The act of making chalk marks on outdoor surfaces walls sidewalks buildings sign posts trees to indicate the existence of an open wireless network connection usually offering an Internet connection so that others can benefit from the free wireless access The open connections typically come from the access points of wireless networks located within buildings to serve enterprises The chalk symbols indicate the type of access point that is available at that specific spot There are three basic designs that are currently used a pair of back to back semicircles which denotes an open node a closed circle which denotes a closed node a closed circle with a W inside which denotes a node equipped with WEP Warchalkers also draw identifiers above the symbols to indicate the password that can be used to access the node which can easily be obtained with sniffer software 12 Glossary July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 As a recent development the debate over the legality of warchalking is still going on The practice stems from the U S Depression era culture of wandering hobos who would make marks outside of homes to indicat
125. t access to only trusted PCs so that unknown PCs cannot wirelessly connect to the WG302 MAC address filtering adds an obstacle against unwanted access to your network but the data broadcast over the wireless link is fully exposed e 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 3 4 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Use WPA WPA PSK WPA2 or WPA2 PSK Wi Fi Protected Access WPA and WPA2 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 software availability may be limited Use AutoCell Enhanced RF Security Stealth Mode In addition to standard encryption and security mechanisms such as WEP and WPA the WG302 AutoCell feature provides self organizing micro cells for an add
126. the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Access Point AP A wireless LAN transceiver or base station that can connect a wired LAN to one or many wireless devices Access points can also bridge to each other There are various types of access points also referred to as base stations used in both wireless and wired networks These include bridges hubs switches routers and gateways The differences between them are not always precise because certain capabilities associated with one can also be added to another For example a router can do bridging and a hub may also be a switch But they are all involved in making sure data is transferred from one location to another A bridge connects devices that all use the same kind of protocol A router can connect networks that use differing protocols It also reads the addresses included in the packets and routes them to the appropriate computer station working with any other routers in the network to choose the best path to send the packets on A wireless hub or access point adds a few capabilities such as roaming and provides a network connection to a variety of clients but it does not allocate bandwidth A switch is a hub that has extra intelligence It can read the address of a packet and send it to the appropriate computer station A wireless gateway is an access point that provides additional capabilities such as NAT routing DHCP firewalls security etc Ad Hoc mode A c
127. the NETGEAR ProSafe Wireless Access Point 802 11g WG302 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 WG302 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 t
128. transferring in parallel paths from one set of plugs to another the signals crossover If an eight wire cable was being used for instance the signal would start on pin one at one end of the cable and end up on pin eight at the other end They cross over from one side to the other CSMA CA Carrier Sense Multiple Action CSMA CA is the principle medium access method employed by IEEE 802 11 WLANs It is a listen before talk method of minimizing but not eliminating collisions caused by simultaneous transmission by multiple radios IEEE 802 11 states collision avoidance method rather than collision detection must be used because the standard employs half duplex radios radios capable of transmission or reception but not both simultaneously Unlike conventional wired Ethernet nodes a WLAN station cannot detect a collision while transmitting If a collision occurs the transmitting station will not receive an ACKnowledge packet from the intended receive station For this reason ACK packets have a higher priority than all other network traffic After completion of a data transmission the receive station will begin transmission of the ACK packet before any other node can begin transmitting a new data packet All other stations must wait a longer pseudo randomized period of time before transmitting If an ACK packet is not received the transmitting station will wait for a subsequent opportunity to retry transmission 4 Glossary July 200
129. ultiple APs installed in one APs Auto RF Management Default Enable area Complexity of installation Customers can put APs anywhere they want and in any density APs Auto RF Management Default Enable Increasing interference Clients and APs avoid interference from neighbors and other unexpected sources Auto RF Management Default Enable AutoCell s self organizing micro cells provide an additional level of privacy for enterprises AutoCell clients are highly recommended for Enhanced RF Security 5 2 Advanced Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Configuration Advanced Wireless Settings AutoCell Setup sA oCel AutoCell Auto RF Management Enabled Disabled Enhanced RF Security C Enabled Disabled Wi Fi Multi media VM Setun Figure 5 2 Advanced Wireless Settings screen AutoCell Setup options There are two AutoCell configuration setting choices e Enable disable Auto RF Management Enabled by default e Enable disable Enhanced RF Security Stealth Mode Disabled by default Auto RF Management Note Channel selection and power management is automatically adjusted by AutoCell when the Auto RF Management option is enabled gt In this mode AutoCell APs and clients load balance traffic across under utilized APs This mode avoids interference from neighbors clients and APs and other unexpected sources
130. uration and testing leave the Wireless Card Access List set to Everyone and the Encryption Strength set to Disabled Click Apply to save your changes A SSID channel or security settings you will lose your wireless connection when you Note If you are configuring the WG302 from a wireless computer and you change the 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 WG302 Check that they have a wireless link and are able to obtain an IP address by DHCP from the WG302 Once your PCs have basic wireless connectivity to the WG302 you can configure the advanced wireless security functions Basic Installation and Configuration 3 19 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 How to Restrict Wireless Access by MAC Address To restrict access based on MAC addresses follow these steps 1 Log in to the WG302 using its default address of hitp 192 168 0 228 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 WG302 from a wireless computer whose MAC address is es not in the access control
131. ure Task Group of IEEE 802 16 developed a point to multipoint broadband wireless access standard for systems in the frequency range 10 66 GHz The standard covers both the Media Access Control MAC and the physical PHY layers Ratification is expected in second half of 2004 Wireless Multimedia WMM WMM Wireless Multimedia is a subset of the 802 11le standard WMM allows wireless traffic to have a range of priorities depending on the kind of data Time dependent information like video audio or voice will have a higher priority than normal traffic For WMM to function correctly wireless clients must also support WMM Wireless Networking Wireless Networking refers to the infrastructure enabling the transmission of wireless signals A network ties things together and enables resource sharing WLAN Wireless LAN Also referred to as LAN A type of local area network that uses wireless or high frequency radio waves rather than wires to communicate between nodes Glossary 15 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 16 Glossary July 2005 v3 0
132. uthentication method 802 1X or Pre shared key and the preferred cipher suite WEP TKIP or AES B 10 Wireless Networking Basics July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 The primary information conveyed in the Beacon frames is the authentication method and the cipher suite Possible authentication methods include 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 suppl
133. vailable Wireless Stations 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 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 4 8 Management July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Detecting a Rogue Access Point For enhanced security you can scan the wireless network to detect rogue access points Detecting Rogue AP s involves scanning the wireless en
134. version apname macaddr country dhepclient ipaddr netmask gateway dns primary secondary stp ethstats x dhcp server dhcpserver anyip ipstart ipend netmask gateway Description time setting current system time time zone daylight saving system setting system firmware version system name system MAC address country region system dhcp client system IP address system network mask system gateway system dns primary system DNS server secondary system DNS server enable spanning tree protocol ethernet statistics DHCP server enable DHCP server accept static IP AnyIP function starting IP address ending IP address network mask gateway Command Line Reference C 1 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 get set del keyword Description X X dns B X X primary primary DNS server X X secondary secondary DNS server X X wins BE X X primary primary WINS server X X secondary secondary WINS server X X lease lease time X X radius radius setting X X auth authenication radius setting X X primary primary x X ipaddr radius IP address X X port radius port number X X secret radius secret string X X secondary secondary x X ipaddr radius IP add
135. vironment on all available channels looking for unidentified AP s In particular unidentified AP s that are using the SSID of a legitimate network can present a serious security threat Rogue AP Detection I Turn Rogue AP Detection On Apply Unidentified AP List EE RF AutoCell ssociated Action pac AddressSSiD Channeli stance Enabled odef Stations Rescan Identified AP List Good AP faction MAC Address SSIO Channel istar stancele ae ioe Societe Save AP List to a file Save Retrieve AP List from a file Replace Merge Browse Retrieve Figure 4 6 Rogue AP Detection menu Once you turn on Rogue AP Detection in the WG302 the AutoCell Enabled AP continuously scans the wireless network and collects information about all APs heard on their channel The information collected includes SSID MAC Address Channel and AutoCell Enabled The user can Grant authorization to an unidentified AP Save the Authorized APs into a file Import the previous Authorized APs from a file Note The AP will disconnect all the wireless connections if Rogue AP Detection is turned ON Management 4 9 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 Upgrading the Wireless Access Point Software Note When uploading software to the WG302 Access Point it is important not to pe interrupt the Web browser by closing the window clicking a link o
136. way lo jo jo Ijo Primary DNS Server o o 0 jo Secondary DNS Server o Ja 3 0 lo Spanning Tree Protocol Enable Disable Time Zone GMT 08 00 Pacific Time US amp Canada Tijuana J C Adjust for Daylight Saving Time Current Time Fri Dec 31 21 58 09 1999 Figure 3 7 IP Settings menu e Access Point Name NetBIOS Enter a new name for the wireless access point and click Apply to save your changes e 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 0 228 IP Subnet Mask 255 255 255 0 Gateway 0 0 0 0 Primary and Secondary DNS Servers 0 0 0 0 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 3 12 Basic Installation and Configuration July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 e Spanning Tree Protocol Spanning Tree Protocol in enabled by default for the wireless access point This provides network traffic optimization in settings with multiple WG302 Access Points e Time Zone Select the time zone location for your setting Note You must have an Internet connection to get the current time Understanding
137. wer levels for client devices The devices will automatically adjust based on geographic requirements Glossary 1 July 2005 v3 0 Reference Manual for the NETGEAR ProSafe Wireless Access Point 802 11g WG302 The purpose of 11d is to add features and restrictions to allow WLANs to operate within the rules of these countries Equipment manufacturers do not want to produce a wide variety of country specific products and users that travel do not want a bag full of country specific WLAN PC cards The outcome will be country specific firmware solutions 802 11e Standard 802 1 1e is a proposed IEEE standard to define quality of service QoS mechanisms for wireless gear that gives support to bandwidth sensitive applications such as voice and video 802 11g Standard Similar to 802 11b this physical layer standard provides a throughput of up to 54 Mbps It also operates in the 2 4 GHz frequency band but uses a different radio technology in order to boost overall bandwidth 802 111 This is the name of the IEEE Task Group dedicated to standardizing WLAN security The 802 111 Security has a frame work based on RSN Robust Security Mechanism RSN consists of two parts 1 The Data Privacy Mechanism and 2 Security Association Management The Data Privacy Mechanism supports two proposed schemes TKIP and AES TKIP Temporal Key Integrity is a short term solution that defines software patches to WEP to provide a minimally adequate level of dat
138. 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 To meet FCC and other national safety guidelines for RF exposure the antennas for this device 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 transmitting structures iii July 2005 v3 0 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 WG302 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 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 residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance
139. 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 July 2005 v3 0 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 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 Antenna Statement for North America and Australia In addition to its own 2 antennas the WG302 device has been approved for use with the following detachable antennas and antenna cables Approved Antenna Gain and Approved Antenna Antenna Cable Maximum Antennas type Length Transmitted Power NETGEAR 18 dBi directional 1 5m to30m 19 dBm 18 dBi ant ANT24D18 outdoor indoor ACC 10314 01 th
140. z 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 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 and WPA2 Wireless Security Wi Fi Protected Access WPA and WPA2 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

Netgear WG302 User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents