A.VPNestablishment
B.statefulARPlookups
C.DynamicARPinspection
D.NetworkAddressTranslation
E.inspectionofpacketsathigherlevels(Layer4andabove)
参考答案:ADE
A.VPNestablishment
B.statefulARPlookups
C.DynamicARPinspection
D.NetworkAddressTranslation
E.inspectionofpacketsathigherlevels(Layer4andabove)
参考答案:ADE