LevelOne 11g PoE Wireless Access Point manual About Wireless LANs, Wireless LAN Terminology, Modes

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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 Stations (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 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 ).

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 Users Guide Page Table of Contents Overview General Problems Wireless Access PointOverview Wireless LAN Terminology Overview Command ReferenceIntroduction Features of your Wireless Access PointAdvanced Features Security FeaturesIntroduction Physical Details Package ContentsRear Panel Procedure InstallationRequirements RequirementsUsing PoE Power over Ethernet Using PoE Power over EthernetPage Setup using the Windows Utility Access Point SetupInstallation OverviewButtons Wireless Access PointsPass-phrase just works for Hex and not for Setup ProcedurePassword Dialog Setup using a Web BrowserIf you cant connect Data Access Control Screen Access ControlButtons Data Trusted Wireless Stations Trusted Wireless StationsSelect None Security ProfilesEdit AddProfile Data Security Profiles ScreenPrimary Profile IsolationSecurity Profile Screen Wireless BandProfile Data Security SystemSetup Radius MAC Authentication Security Settings NoneUsing MAC authentication Setup Data Radius-based MAC Authentication Screen Radius-based MAC authentication ScreenUAM authentication External UAM authentication InternalData UAM Screen UAM ScreenSecurity Settings WEP Data WEP Screen Data WPA-PSK Screen Security Settings WPA-PSKNetwork Key WPA EncryptionGroup Key Update Pairwise Key UpdateUpdate Group key When any membershipWPA-802.1x Wireless Security Security Settings WPA-802.1xWPA-802.1x Data WPA-802.1x ScreenEvery Update Report802.1x Wireless Security Security Settings802.1x Data 802.1x ScreenUAM Data System Screen System ScreenIdentification IP AddressWins Server Name/IP Address Basic Settings Screen Wireless ScreensData Basic Settings Screen Wireless ModeBridge Mode AP ModeBroadcast Ssid MAC Address fieldParameters Data Advanced Settings Screen Advanced SettingsBasic Rate Options802.11b Using WEP PC and Server ConfigurationSecurity Using WPA-PSK Wireless Station Configuration Using WPA-802.1xRadius Server Configuration 802.1xWindows 2000 Domain Controller Setup 802.1x Server Setup Windows 2000 ServerServices Installation 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 Operation Operation and StatusStatus Screen Wireless Access PointData Status Screen Security ProfilesStatistics Screen 4GHz WirelessData Statistics Screen System Up TimeManagement Multicast PacketsControl Band Profile StatusClients Data Activity Log Activity LogData Data Station List Screen Station ListStation List Refresh ButtonAdmin Login Screen Access Point ManagementLogin Data Admin Login ScreenAdmin Connections Data Auto Config/Update Screen Auto Config/UpdateConfiguration on this AP Perform AutoAuto Update Data Config File Screen Config FileBackup RestoreRevert to factory DefaultsData Log Settings Screen Log Settings SyslogRogue APs Enable DetectionData Rogue AP Screen General Data Snmp ScreenManagers TrapsTo perform the Firmware Upgrade Upgrade FirmwareWireless Access Point SpecificationsHardware Specifications Wireless SpecificationsFeature Details Software SpecificationsMessage Log FCC Radiation Exposure Statement FCC StatementGeneral Problems TroubleshootingTo Find the Access Points IP Address Wireless Access Point User Guide Windows TCP/IP Checking TCP/IP Settings Windows 9x/MENormally, no changes need to be made 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 Wireless LAN Terminology About Wireless LANsAd-hoc Mode Infrastructure ModeWPA-802.1x Channels802.1x Using the CLI Telnet Command Line InterfaceUsing the CLI Serial Port CLI Port Settings Command ReferenceWireless Access Point User Guide Display 11g Beacon Rate Wireless Access Point User Guide Mem -- system memory statistics Set 11g Beacon Rate Appendix C Windows TCP/IP Wireless Access Point User Guide

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