A.IP protocol 50 B.TCP port 51 C.UDP port 50 D.IP protocol 51 E.UDP port 51 F.TCP port 50
A.the protocol used to determine the authentication method B.the protocol used to identify the data in the Information field C.the protocol used to carry the PPP frame D.the protocol used to decode the FCS field E.the protocol used to detect the number of padding bytes
A.TCP port B.authentication C.IP DF bit D.retransmit retries E.sequencing F.hostname