D-Link DWS-4026 [551/741] Configuring ap security

BasicSetup

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

November2011 Page551

D‐LinkUWSUserManual

ConfiguringAPSecurity

TheDefaultAPprofiledoesnotuseanysecuritymechanismbydefault.Toprotectyournetwork,D‐Link

stronglyrecommendsthatyouselectasecuritymechanismsothatunauthorizedwirelessclientscannotgain

accesstoyournetwork.

FromtheVAPtaboftheWirelessNetworkConfigurationpage,youcanselectNone,WE

PorWPA/WPA2as

theWLANsecuritymechanisms,asthefollowingfigureshows.ThedefaultisNone.

Figure363:APNetworkSecurityOptions

Thefollowingsectionsdescribethesecuritymechanicians.

UsingNoSecurity

IfyouselectNoneasyoursecuritymode,nofurtheroptionsareconfigurableontheAP.Thismodemeansthat

anydatatransferredbetweentheAPandtheassociatedwirelessclientsisnotencrypted,andanywireless

clientcanassociatewiththeAP.

Thissecuritymodecanbeusefulduringinitialnetw

orkconfigurationorforproblemsolving,butitisnot

recommendedforregularuseontheinternalnetworkbecauseitisnotsecure.

UsingStaticorDynamicWEP

WiredEquivalentPrivacy(WEP)isadataencryptionprotocolfor802.11wirelessnetworks.Ifyouselectthis

securitymechanism,allwirelessclientsandaccesspointsonthenetworkareconfiguredwitha64‐bit(40‐bit

secretkey+24‐bitinitializationvector(IV))or128‐bit(104‐bitsecretke

y+24‐bitIV)SharedKeyfordata

encryption.

StaticWEPisnotthemostsecuremodeavailable,butitoffersmorepr otectionthansettingthesecuritymode

toNoneasitdoespreventanoutsiderfromeasilysniffingoutunencryptedwirelesstraffic.

DynamicWEPismoresecurethanStaticWEP,butyo

uneedaRADIUSservertomanagethedynamically

generatedkeys.

WEPencryptsdatamovingacrossthewirelessnetworkbasedonastatickey.(Theencryptionalgorithmisa

streamciphercalledRC4.)