LevelOne WAP-0005 user manual About Wireless LANs, Wireless LAN Terminology, Modes, Ad-hoc Mode

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Appendix D	D
About Wireless LANs

Overview

Wireless networks have their own terms and jargon. It is necessary to understand many of these terms in order to configure and operate a Wireless LAN.

Wireless LAN Terminology

Modes

Wireless LANs can work in either of two (2) modes:

•Ad-hoc

•Infrastructure

Ad-hoc Mode

Ad-hoc mode does not require an Access Point or a wired (Ethernet) LAN. Wireless Sta- tions (e.g. notebook PCs with wireless cards) communicate directly with each other.

Infrastructure Mode

In Infrastructure Mode, one or more Access Points are used to connect Wireless Stations (e.g. Notebook PCs with wireless cards) to a wired (Ethernet) LAN. The Wireless Stations can then access all LAN resources.

Access Points can only function in "Infrastructure" mode, and can communicate only with Wireless Stations which are set to "Infrastructure" mode.

SSID/ESSID

BSS/SSID

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 communi- cate 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 ).

ESS/ESSID

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.

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Contents LevelOne Table of Contents Overview Command Reference Wireless Access PointOverview General Problems Overview Wireless LAN TerminologyIntroduction Features of your Wireless Access PointAdvanced Features Security FeaturesPhysical Details Package ContentsEthernet To Clear All Data and restore the factory default valuesPower port Rear PanelRequirements InstallationProcedure RequirementsUsing PoE Power over Ethernet Using PoE Power over EthernetOverview Access Point SetupSetup using the Windows Utility InstallationButtons Wireless Access PointsWireless Security Wireless Security Setup ProcedurePassword Dialog Setup using a Web BrowserManagement System Access Control WirelessIf you cant connect Status Screen IP Address System ScreenData System Screen IdentificationTelnet Access ControlData Access Control Screen Buttons Trusted Wireless StationsData Trusted Wireless Stations Add Select AllSelect None EditWireless Mode Wireless ScreensBasic Settings Screen Data Basic Settings ScreenCurrent Channel Remote APChannel No Broadcast Ssid Security Settings Using MAC authentication Security Settings NoneRadius MAC Authentication Data Radius-based MAC Authentication Screen Radius-based MAC authentication ScreenUAM authentication External UAM authentication InternalInternal AuthenticationUAM Screen Data UAM ScreenData WEP Screen Security Settings WEPRadius MAC Key InputKey Value PassphraseWPA Encryption Security Settings WPA-PSKData WPA-PSK Screen Network KeyKey Lifetime Pairwise Key UpdateGroup Key Update Update Group key when any membership terminatesWPA-802.1x Security Settings WPA-802.1xData WPA-802.1x Screen Update Report UpdateUpdate Group key When any memberRadius Server Address Security SettingsData 802.1x Screen 802.1xKey Exchange Update Report everyWEP Key Size Options Advanced SettingsData Advanced Settings Screen Basic Rate802.11b 2.4GHz only ParametersSecurity PC and Server ConfigurationUsing WEP ModeUsing WPA-PSK 802.1x Using WPA-802.1xWireless Station Configuration Radius Server ConfigurationServices Installation 802.1x Server Setup Windows 2000 ServerWindows 2000 Domain Controller Setup Components Screen CA Screen Dhcp server configurationIP Address Screen Certificate Authority Screen Certificate Authority SetupActive Directory Screen Group Policy Screen Service Screen Internet Authentication Service Radius SetupAuthentication Screen Dial-in Screen Remote Access Login for UsersClient Certificate Setup 802.1x Client Setup on Windows XPWireless CA Screen Identifying Information Screen Encryption Settings 802.1x Authentication SetupEnabling Encryption Wireless Networks ScreenProperties Screen Using 802.1x Mode without WPA Status Screen Operation and StatusOperation Security Access PointWireless Data Status ScreenData Activity LogData Activity Log Station List Station ListData Station List Screen System Up Time 4GHz WirelessStatistics Screen Data Statistics ScreenControl Data Admin Login Screen Other Settings & FeaturesAdmin Login Screen Password Dialog Restore Config FileData Config File Screen BackupTraps Data Snmp ScreenGeneral ManagersTo perform the Firmware Upgrade Firmware UpgradeWireless Specifications SpecificationsWireless Access Point Hardware SpecificationsFeature Details Software SpecificationsMessage Log FCC Radiation Exposure Statement FCC StatementTo Find the Access Points IP Address TroubleshootingGeneral Problems Appendix B Troubleshooting Normally, no changes need to be made Checking TCP/IP Settings Windows 9x/MEWindows TCP/IP Using Specify an IP Address Using DhcpWindows NT4.0 TCP/IP Checking TCP/IP Settings Windows NT4.0Obtain an IP address from a Dhcp Server Network Configuration Win Checking TCP/IP Settings WindowsUsing a fixed IP Address Use the following IP Address Network Configuration Windows XP Checking TCP/IP Settings Windows XPUsing Dhcp Infrastructure Mode About Wireless LANsWireless LAN Terminology Ad-hoc ModeWPA-802.1x Channels802.1x Using the CLI Serial Port Command Line InterfaceUsing the CLI Telnet CLI Port Settings Command ReferenceAppendix E Command Line Interface Wireless Access Point User Guide Appendix E Command Line Interface Wireless Access Point User Guide Set Extended Channel Mode Wireless Access Point User Guide Set wep -- Set Encryption Mode

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