NETGEAR WG111U user manual Figure B-4 802.1x Authentication Sequence

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User’s Manual for the NETGEAR Super AG Wireless USB 2.0 Adapter WG111U

Client with a WPA-

 

 

enabled wireless

 

 

adapter and supplicant

For example, a

For example, a

(Win XP, Funk,

Meetinghouse, etc.)

WPA-enabled AP

RADIUS server

1

3

4

5

7

Figure B-4: 802.1x Authentication Sequence

The access point (AP) sends Beacon Frames with WPA information elements 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 (i.e., client device) attempting to connect with an authenticator (i.e., 802.11 access point). The client sends an EAP-start message. This begins a series of message exchanges to authenticate the client.

2.The access point replies with an EAP-request identity message.

Wireless Networking Basics

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202-10065-01

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Contents 202-10065-01 Certificate of the Manufacturer/Importer Technical SupportFCC Guidelines for Human Exposure Declaration Of ConformityFCC Requirements for Operation in the United States Export Restrictions Operation Using 2.4 GHz Channels in FranceMetropolitan Regions with Eased Restrictions in 2.4GHz Band Allowed 5GHz Channels in Each European Community Country Operation Using 5 GHz Channels in the European CommunityVii Viii Contents Chapter Configuration Appendix C Preparing Your Network to Work with a Router Glossary Index Typographical conventions Manual SpecificationsChapter About This Manual Audience, Scope, ConventionsHtml version of this manual How to Use this ManualHow to Print this Manual About This Manual About the WG111U Chapter Introduction802.11a and 802.11b/g Wireless Networking Key FeaturesComparing the 802.11a, 802.11b, and 802.11g Modes Comparison of Wireless ModesWhat’s in the Box? Road Map for ‘How to Get There From Here’If I Want To? What’s Needed? What Do I Do? How Do I? Road Map for How to Get There From HereNetgear Super AG Netgear Super AG Wireless Wired network Wirelessly connect Chapter Basic Setup What You Need Before You BeginVerifying System Requirements Observing Location and Range Guidelines Determining Placement of the USB AdapterAttach fastener to back of plastic cradle Two Basic Operating ModesBasic Installation Instructions WG111U Default Wireless Configuration SettingsFor Windows XP Users Installing a WG111U Install the Netgear Super AG Wireless USB 2.0 Adapter WG111U Configure your WG111U Verify wireless connectivity to your network For Windows 2000, ME, and 98SE Users Installing a WG111U Found New Hardware Wizard WG111U System Tray Icon Configure your WG111U WG111U Wireless Connection Indicators Interpreting the LED on the WG111U Status LEDLED Descriptions Yellow Interpreting System Tray Icon ColorsColor Condition Description RedChapter Configuration Understanding the Configuration OptionsUsing Configuration Profiles Connecting to an Access Point in Infrastructure Mode How to Configure an Infrastructure Mode ProfileRun the WG111U Smart Wireless Wizard Save your settings in a Profile Configure the wireless network settingsConnecting to Another PC in Ad-hoc Mode How to Configure an Ad-hoc Mode ProfileConfigure the PC network settings Ad-Hoc Setting dialog box Ping -t 192.168.0.1 and then click OK Statistics What’s on the Statistics Page?Advanced Settings Understanding the Advanced SettingsTPC Configuration Procedure European Regulatory Requirements for Transmit Power ControlConfiguration Understanding the Security Options Chapter Wireless Security ConfigurationBasic Requirements for WEP Using WEP SecurityWEP Security Settings Worksheet Wireless Network Name SsidWEP Security Encryption Key How to Configure WEP Encryption Security Configure the Network Name Ssid settingsConfigure the WEP settings Basic Requirements for WPA-PSK Using WPA-PSK Advanced SecurityHow to Configure WPA-PSK Advanced Security WPA-PSK Security Settings WorksheetWPA-PSK settings screen Configure the WPA-PSK settingsWireless Security Configuration Basic Tips Chapter TroubleshootingFrequently Asked Questions Ad Hoc mode is not working correctlyGeneral Questions New Hardware Wizard appears after installation has completed How to use XP’s own Wireless configuration utilityTroubleshooting USB Appendix a Technical SpecificationsTechnical Specifications Appendix B Wireless Networking Basics Wireless Networking OverviewInfrastructure Mode Ad Hoc Mode Peer-to-Peer Workgroup Network Name Extended Service Set Identification EssidWireless Channels Table B-1 802.11g Radio Frequency Channels Radio frequency channels used are listed in Table B-1WEP Authentication WEP Wireless SecurityAccess point have the same WEP are described below Authentication Shared Key Steps Key Size and Configuration How to Use WEP Parameters WPA Wireless SecurityHow Does WPA Compare to WEP? How Does WPA Compare to Ieee 802.11i? What are the Key Features of WPA Security?Wireless Networking Basics Figure B-3 WPA Overview Login AuthenticationFigure B-4 802.1x Authentication Sequence WPA Data Encryption Key Management Temporal Key Integrity Protocol Tkip Product Support for WPA Supporting a Mixture of WPA and WEP Wireless ClientsChanges to Wireless Access Points Is WPA Perfect?Michael WPA two-phase authenticationChanges to Wireless Network Adapters New WPA information elementChanges to Wireless Client Programs Cabling and Computer Hardware Computer Network Configuration RequirementsAppendix C Preparing Your Network to Work with a Router What You Need To Use a Router with a Broadband ModemWhere Do I Get the Internet Configuration Parameters? Internet Configuration RequirementsRecord Your Internet Connection Information Preparing Your Computers for TCP/IP Networking Configuring Windows 95, 98, and Me for TCP/IP Networking Installing or Verifying Windows Networking ComponentsInstalling a New Adapter Installing the Client for Microsoft Networks Installing TCP/IPOpen the Network Panel Verify the Configuration SettingsSelecting the Windows’ Internet Access Method Verify the Properties IP Address SettingVerifying TCP/IP Properties Configuring Windows NT4, 2000 or XP for IP Networking Go to the Network Connection Status window Configuring Dhcp of TCP/IP in Windows XP, 2000, or NT4Dhcp Configuration of TCP/IP in Windows XP Open the Network Connection WindowSet Dhcp for TCP/IP Go to PropertiesCheck the Local Area Connection Properties Settings Dhcp Configuration of TCP/IP in WindowsCheck the Internet Protocol Properties Complete the configurationGo to TCP/IP Properties Dhcp Configuration of TCP/IP in Windows NT4Set the TCP/IP Properties Verifying TCP/IP Properties for Windows XP, 2000, and NT4Configuring the Macintosh for TCP/IP Networking MacOS 8.6 orMacOS Verifying TCP/IP Properties for Macintosh Computers Verifying the Readiness of Your Internet AccountWhat Is Your Configuration Information? Are Login Protocols Used?Select the Gateway tab Restarting the Network Glossary Glossary-2 Glossary Glossary-3 Glossary-4 Glossary Glossary-5 Glossary-6 Numerics IndexIndex-2