WhatisnotadifferencebetweenVPNtunnelauthenticationandper-userauthentication？（）
A.VPNtunnelauthenticationispartoftheIKEspecification.
B.VPNtunnelauthenticationdoesnotcontrolwhichendusercanusetheIPSecSA(VPNtunnel).
C.UserauthenticationisusedtocontrolaccessforaspecificuserID,andcanbeusedwithorwithoutaVPNtunnelfornetworkaccessauthorization.
D.802.1XwithEAP-TLS(X.509certificates)canbeusedtoauthenticateanIPSectunnel.
时间：2023-09-10 14:12:32
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