NETGEAR WPN111 user manual How to Use WEP Parameters, WEP Key Configuration

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User Manual for the NETGEAR RangeMax™ Wireless USB 2.0 Adapter WPN111

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.

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.

WEP Key Configuration

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, etc.

Note: The AP and the client adapters can have different default WEP Keys as long as the keys are in the same order. In other words, the AP can use WEP key 2 as its default key to transmit while a client adapter can use WEP key 3 as its default key to transmit. The two devices will communicate as long as the AP’s WEP key 2 is the same as the client’s WEP key 2 and the AP’s WEP key 3 is the same as the client’s WEP key 3.

How to Use WEP Parameters

Wired Equivalent Privacy (WEP) data encryption is used when the wireless devices are configured to operate in Shared Key authentication mode. There are two shared key methods implemented in most commercially available products, 64-bit and 128-bit WEP data encryption.

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.Does Not Use WEP: The 802.11 network does not encrypt data. For authentication purposes, the network uses Open System Authentication.

2.Uses WEP for Encryption: A transmitting 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.Uses WEP for Authentication and Encryption: A transmitting 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 Shared Key Authentication.

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W ire le ss N e tworkin g B a sics

202-10076-01

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Contents NETGEAR, I n c Technical Support FCC Information to User Teste d to C om p ly Ta n d a rd sContents Troubleshooting Index Viii Chapter About This Manual Audience, Scope, ConventionsHow to Print this Manual About the WPN111 Key FeaturesChapter Introduction Road Map for ‘How to Get There From Here’ What’s in the Box?On n e ct to a E n tify th e Wire le ss n e twork Wire le ssWire le ss n etwork To le a rn a b ou t wire le ssCtiva te m y Ve rify m y n e twork Ca b le or D S L se rvice TworkCon n e ction Rovid e rs For you r ve rsion of W in d ows Rowse r su ch a sWire le ss a n d Twork Con n e ct to th e wire le ss Wire d n etworkE P C I a m u sin g to Igh b orh oodWire le ss a n d Com p u te r su p p ort grou p s Com b in e dTwork n e e d s to b e D P rin t S h a rin gVerifying System Requirements Chapter Basic SetupWhat You Need Before You Begin Two Basic Operating Modes Observing Location and Range GuidelinesWPN111 Default Wireless Configuration Settings Basic Installation InstructionsSta llS h ie ld W iza rd For Windows XP Users Installing a WPN111Click Install Driver and Utility V1 typ e Ort, youIs 1 4 M b p s wh e re a s th e With a W in d ows X P L ogo te stin gTh e se Ste p s, click th e H e lp b u tton in th e W P N 1 1202-10076-01 For Windows 2000 Users Installing a WPN111 N 1 1 1 R e sou rce C D Sta llS h ie ld W iza rdOrt is 4 8 0 M b p s N 1 1 1 S yste m Tra y I con Ou n d N e w H a rd wa re W iza rdSp e e d is 1 Tility Or re se t WPN111 Wireless Connection IndicatorsInterpreting the LED on the WPN111 Interpreting System Tray Icon Colors Using Configuration Profiles Chapter ConfigurationUnderstanding the Configuration Options Run the WPN111 Configuration Utility Connecting to an Access Point in Infrastructure ModeHow to Configure an Infrastructure Mode Profile Configure the wireless Network settings Save your settings in a ProfileVerify wireless connectivity to your network Connecting to Another PC in Ad-hoc ModeHow to Configure an Ad-hoc Mode Profile Configure the PC network settings Windows Run program dialog boxHow to Start a Computer-to-Computer Ad-Hoc Network Ping test resultsEnabling Wireless Security Features How to Configure WEP Encryption Security Configure the Security settingsHow to Configure WPA-PSK Encryption Security Statistics Advanced SecurityAdvanced Settings Advanced Settings202-10076-01 Chapter Troubleshooting Basic TipsFrequently Asked Questions General QuestionsNew Hardware Wizard appears after installation has completed Rou b le s h ootin g Appendix a Technical Specifications Ch n ica l S p e cifica tion s Infrastructure Mode Appendix B Wireless Networking BasicsWireless Networking Overview Wireless Channels Ad Hoc Mode Peer-to-Peer WorkgroupNetwork Name Extended Service Set Identification Essid 802.11b/g Wireless Channels Re qu e n cy G H z 5 5 2 5 5 2 For U SFor C a n a d a W for E u rop eWPN111 user can use thirteen channels in non-turbomode 160 Wireless Security Overview152 WEP Authentication WEP Overview802.1x Cisco LeapAuthentication Open System Steps WEP Keys Bit WEPHow to Use WEP Parameters WEP Key Configuration802.1x Port Based Network Access Control Figure B-4 802.1x authentication WPA Wireless Security How Does WPA Compare to WEP? What are the Key Features of WPA Security? How Does WPA Compare to Ieee 802.11i?Figure B-5 WPA Overview Figure B-6 WPA/802.1x Authentication Sequence 202-10076-01 Michael WPA Data Encryption Key ManagementTemporal Key Integrity Protocol Tkip AES Support Is WPA Perfect?Product Support for WPA Wireless network adapters Wireless client programs 202-10076-01 Appendix C Preparing Your PCs for Network Access Configuring Windows 98 and Me for TCP/IP NetworkingInstall or Verify Windows Networking Components Preparing Your Computers for TCP/IP NetworkingRe p a rin g Y ou r P C s for N e twork a cce ss Locate your Network Neighborhood icon Choose Settings, and then Control PanelEnabling Dhcp in Windows 98 and Me Primary Network Logon is set to Windows logon Selecting Windows’ Internet Access Method Verifying TCP/IP PropertiesConfiguring Windows 2000 or XP for TCP/IP Networking Dhcp Configuration of TCP/IP in Windows XP or Dhcp Configuration of TCP/IP in Windows XPTCP/IP details are presented on Support tab Dhcp Configuration of TCP/IP in Windows Verify that Obtain an IP addressObtain an IP address automatically is selected Verifying TCP/IP Properties for Windows XP or 202-10076-01 Glossary DSL Internet service provider Ssid Wins 202-10076-01 Index Numerics
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