The _______ field in the outer IP header indicates whether the association is an AH or ESP security association.
A) protocol identifier
B) security parameter index
C) IP destination address
D) sequence path counter

Question

Quizplus · Accepted Answer

The protocol identifier field in the outer IP header is used to indicate the protocol used in the ensuing payload data. In the case of IPSec, it is used to indicate whether the association is an AH or ESP security association. The security parameter index (SPI) field identifies the Security Parameter Index (SPI) that is used to denote a specific IPSec Security Association (SA). The IP destination address field indicates the destination IP address for the packet, and the sequence path counter is not a valid field in the IP header.

The _______ Field in the Outer IP Header Indicates Whether