A.Alltrafficispermittedfromtheinboundtotheoutboundinterfaceuponsuccessfulauthenticationoftheuser.
B.AspecificaccessprofileisretrievedfromaTACACS+orRADIUSserverandappliedtoanIOSFirewallbasedonuserprovidedcredentials.
C.PriortorespondingtoaproxyARP，therouterwillprompttheuserforaloginandpasswordwhichareauthenticatedbasedontheconfiguredAAApolicy.
D.TheproxyservercapabilitiesoftheIOSFirewallareenableduponsuccessfulauthenticationoftheuser.
正确答案：参考B
