Which of the following message types permit a gateway (router) on a nonoptimal route between sender and receiver to redirect traffic to a more optimal path?
A)ICMP Echo/Echo Reply
B)ICMP Source Quench
C)ICMP Redirect
D)ICMP Destination Unreachable

Question

Quizplus · Accepted Answer

ICMP Redirect messages are specifically designed to inform a host of a more optimal route for sending packets. When a router receives a packet but realizes there's a better path to the destination, it can use an ICMP Redirect message to advise the sending host of this more efficient route.

Which of the Following Message Types Permit a Gateway (Router)