多项选择题
A.加密算法 B.散列算法 C.验证方法 D.Diffe-Hellman公共值
A.SCCRQ(Session-Control-Connecting-Request) B.SCCRP(Session-Control-Connecting-Reply) C.ICRQ(Incoming-Call-Request) D.ICRP(Incoming-Call-Reply)
A.链路层协议-GRE-IP-IPX B.链路层协议-IP-GRE-IPX C.链路层协议-GRE-IPX-IP D.链路层协议-IPX-GRE-IP