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Does VRRP utilize a VMAC?

Discussion in 'Routing & Switching' started by BraderzTheDog, Apr 22, 2013.

  1. BraderzTheDog

    BraderzTheDog Kilobyte Poster

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    Hey all,

    I was wondering if some of you may know... Does VRRP on Cisco routers utilize a Virtual MAC address for the Virtual IP?

    I've been looking at documentation and can't seem to find anything on it... Google is becoming a bit hazey so I'm a little unsure.

    I did once configure this on a Checkpoint Gaia cluster running VRRP. From when I did this Im sure there is a floating MAC address that is tied to the Virtual IP address. In the event of a failover in order to stop packet loss the switches have the arp entry of virtual MAC thats tied to the VIP... Meaning you get no packet loss, the Virtual MAC address just "points" to the other cluster member, no need to update arp entries.

    Is this possible on Cisco or am I missing something?
     
    Certifications: CCNA R&S, CCNA-SEC, CCSA, JNCIA FWV, MCITP, MCTS, MTA, A+
  2. danielno8

    danielno8 Gigabyte Poster

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    Yes that is certainly my understanding....once there is a failure, the the backup router becomes master and starts responding to ARP requests for the VMAC.
     
    Certifications: CCENT, CCNA
    WIP: CCNP
  3. cisco lab rat

    cisco lab rat Megabyte Poster

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    0000.5e00.01xx where xx is the group number
     
    Certifications: Yes I pretty much am!!
    WIP: Fizzicks Degree
  4. BraderzTheDog

    BraderzTheDog Kilobyte Poster

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    Nice on just what I was after! Going to implement this instead of HSRP.

    Thanks very much Dan & Lab Rat, much appreciated as always.
     
    Certifications: CCNA R&S, CCNA-SEC, CCSA, JNCIA FWV, MCITP, MCTS, MTA, A+

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