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Руководство пользователя. Версия 2.0 Страница: 553

D-Link DWS-4026 [553/741] Static wep rules

BasicSetup

D-Link UnifiedWiredandWirelessAccessSystem

November2011 Page553

D‐LinkUWSUserManual

StaticWEPRules

IfyouuseStaticWEP,thefollowingrulesapply:

•AllclientstationsmusthavetheWirelessLAN(WLAN)securitysettoWEPandallclientsmusthaveoneof

theWEPkeysspecifiedontheAPinordertode‐codeAP‐to‐stationdatatransmissions.

•TheAPmusthaveallkeysuse

dbyclientsforstation‐to‐APtransmitsothatitcande‐codethestation

transmissions.

•Thesamekeymustoccupythesameslotonallnodes(APandclients).ForexampleiftheAPdefines

abc12keyasWEPkey3,thentheclientstationsmustdefinethatsamest

ringasWEPkey3.

•Clientstationscanusedifferentkeystotransmitdatatotheaccesspoint.(Ortheycanallusethesame

key ,butthisislesssecurebecauseitmeansonestationcandecryptthedatabeingsentbyanother.)

•Onsomewirelessclientsoftware,youcanconfiguremultipleWEPke

ysanddefineaclientstation

“transferkeyindex”,andthensetthestationstoencryptthedatatheytransmitusingdifferentkeys.This

ensuresthatneighboringAPscannotdecodeeachother’stransmissions.

•Youcannotmix64‐bit,128‐bit,and152‐bitWEPkeysbetweentheaccesspointandit

sclientstations.

UsingWPA/WPA2PersonalorEnterprise

WPAandWPA2areWi‐FiAllianceIEEE802.11istandards,whichincludeAES‐CCMPandTKIPmechanisms.The

WPA/WPA2Personalemploysapre‐sharedkeytoperformaninitialcheckofcredentials.TheWPA/WPA2

EnterprisesecurityusesaRADIUSservertoauthenticateusers.

WEPKeyLength Specifythelengthofthekeybyclickingoneofthera

diobuttons:

•64bits

• 128bits

Tx TheTransferKeyIndexindicateswhichWEPkeytheacce sspointusestoencryptthe

dataittransmits.Toselectatransferkey,clickthebuttonlocatedbetweenthekey

numberandthefieldwhereyouenterthekey .In<Link>F

igure364,thetransferkey

is3.

WEPKeys YoucanspecifyuptofourWEPkeys.Ineachtextbox,enterastringofcharactersfor

eachkey .ThesearetheRC4WEP keyssharedwiththestationsusingtheaccesspoint.

Usethesamenumberofcharactersforeachkey .Thenumbe

rofkeysyouenter

dependsontheKeyTypeandKeyLength.Thefollowinglistshowsthenumberofkeys

toenterinthefield:

•64bit:ASCII:5characters;Hex:10characters

• 128bit:ASCII:13characters;Hex:26characters

Eachclientstationmustbeconfiguredtouseoneofth

esesameWEPkeysinthe

sameslotasspecifiedhereontheAP.

Note:The802.11nclientscannotusetheTKIPcipher.ThereforeifonlyTKIPisenabledthenthe

802.11clientswillnotbeabletoauthenticatewiththenetwork.

Table329:StaticWEP(Cont.)

Field Description

D-Link DWS-4026 [553/741] Static wep rules

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