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N10-009 · Question #643

Which of the following ICMP responses does a router send to inform a host of a better routing gateway?

The correct answer is C. Redirect Message. An ICMP Redirect message is sent by a router to tell a host there is a better next-hop gateway for a destination, prompting the host to update its routing decision for that traffic.

Submitted by minji_kr· Mar 6, 2026Networking concepts

Question

Which of the following ICMP responses does a router send to inform a host of a better routing gateway?

Options

  • ARouter Advertisement
  • BEcho Reply
  • CRedirect Message
  • DNetwork Unreachable

How the community answered

(30 responses)
  • A
    3% (1)
  • B
    7% (2)
  • C
    87% (26)
  • D
    3% (1)

Explanation

An ICMP Redirect message is sent by a router to tell a host there is a better next-hop gateway for a destination, prompting the host to update its routing decision for that traffic.

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