Which of these is the correct multicast address that VRRP uses to send advertisements?

Last Updated: May 1, 2026
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Which of these is the correct multicast address that VRRP uses to send advertisements?

  • 224.0.0.4
  • 224.0.0.2
  • 224.0.0.16
  • 224.0.0.18

Explanation: The correct multicast address used by the Virtual Router Redundancy Protocol (VRRP) to send advertisements is 224.0.0.18.

In a VRRP configuration, the Master router sends periodic advertisements to this specific multicast address to communicate its status to the Backup routers. These advertisements are typically sent at a default Advertisement interval of 1.000 second. If the Backup routers fail to receive an advertisement within the Master Down interval, they assume the Master has failed and will initiate a transition to become the new Master router. This mechanism ensures transparent default gateway failover for host devices on the network.

Related exam: Modules 1 – 7: Checkpoint Exam: Network Switching Answers (CCNP ENCOR v9)

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