A.安全參數(shù)索引(SPI) B.IP源地址 C.安全協(xié)議號(hào)(AH或ESP) D.IP目的地址
A.數(shù)據(jù)機(jī)密性(Confidentiality) B.數(shù)據(jù)完整性(Data Integrity) C.抗DDoS(Distributed Deny of Service) D.身份驗(yàn)證(Data Authentication)
A.L2TP B.GRE C.IPSec D.PPTP