If the value of the PROTOCOL field in the PPP protocol is 8021, which of the following protocols is used?
PPP Protocol Overview :
PPP (Point-to-Point Protocol) uses the PROTOCOL field in its header to identify the type of encapsulated protocol.
Protocol Field Values :
0x8021 : Indicates IPCP (Internet Protocol Control Protocol) , which is used to negotiate IP-related parameters during PPP session establishment.
0xC021 : Indicates LCP (Link Control Protocol) , which is used for establishing, configuring, and testing the PPP link.
0x002B : Indicates IPX (Internetwork Packet Exchange) .
0x0021 : Indicates IP (Internet Protocol) .
Why A?
The value 0x8021 corresponds to IPCP , making it the correct answer.
Thus, the correct answer is A .
HCIA Huawei ACCESS Official Documentation , Chapter: PPP Protocol.
RFC 1661: PPP Protocol Specification .
Xuan
1 days ago