Specifications

Glossary-27
Wi-Fi Protected Access
SeeWPA.
wildcard mask
A32‐bitquantityusedwithanIPaddresstodeterminewhichbitsintheaddresstoignoreina
comparisonwithanotherIPaddress.Whensettingupsecurityaccesscontrollists(ACLs),you
specifysourceanddestinationIPaddressesandcorrespondingwildcardmasksbywhichthe
RoamAboutSwitchdetermineswhether
toforwardorfilterpackets.ThesecurityACLchecksthe
bitsinIPaddressesthatcorrespondtoany0s(zeros)inthemask,butdoesnotcheckthebitsthat
correspondto1s(ones)inthemask.
wired authentication port
AnEthernetportthathas802.1Xauthenticationenabledforaccesscontrol.
Wired-Equivalent Privacy protocol
SeeWEP.
Wireless Ethernet Compatibility Alliance
SeeWi‐FiAlliance.
Wireless Internet Service Provider
SeeWISP.
Wireless LAN
SeeWLAN.
WISP
WirelessInternetserviceprovider.AcompanythatprovidespublicwirelessLAN(WLAN)
services.
WLAN
WirelessLAN.ALANtowhichmobileusers(clients)canconnectandcommunicatebymeansof
high‐frequencyradiowavesratherthanwires.WLANsaredefinedintheIEEE802.11standard.
WPA
Wi‐FiProtectedAccess.TheWi‐FiAlliance’sversionoftheTemporalKeyIntegrityProtocol(TKIP)
thatalsoincludesamessageintegritycode(MIC)knownasMichael.AlthoughWPAprovides
greaterwirelesssecuri tythantheWired‐EquivalentPrivacyprotocol(WEP),WPAisnotassecure
asIEEE802.11i,whichincludes
boththeRC4encryptionusedinWEPandAdvancedEncryption
Standard(AES)encryption,butisnotyetratifiedbyIEEE.SeealsoAES;RC4;TKIP.
WPA IE
Asetofextrafieldsinawirelessframethatcontain Wi‐FiProtectedAccess(WPA)informationfor
theAccessPoint(AP)orclient.Forexample,anAccessPointusesthe WPAIEinabeaconframeto
advertisetheciphersuitesandauthenticationmethodsthattheaccesspointsupportsfor
its
encryptedSSID.
WPA Information Element
SeeWPAIE.