• Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Search
  • Register
  • Login
Netgate Discussion Forum
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Search
  • Register
  • Login

Can I duplicate VHID group in CARP VirtualIP ?

Scheduled Pinned Locked Moved HA/CARP/VIPs
5 Posts 2 Posters 2.5k Views 2 Watching
Loading More Posts
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • B Offline
    BenGonGon
    last edited by Jun 21, 2025, 8:52 PM

    Hello,
    I need more than 256 CARP Virtual IP because I have many interface.
    Can I duplicate VHID group in CARP VirtualIP if the duplicata is not on the same interface ?

    P 1 Reply Last reply Jun 21, 2025, 9:08 PM Reply Quote 0
    • P Offline
      patient0 @BenGonGon
      last edited by Jun 21, 2025, 9:08 PM

      @BenGonGon to reference an old thread CARP VHID question :

      "Yes, it only has to be unique on each layer 2.

      So long as the multicast traffic from CARP does not cross into the other segments, the same VHID can be used on separate interfaces."

      1 Reply Last reply Reply Quote 0
      • B Offline
        BenGonGon
        last edited by Jun 21, 2025, 9:13 PM

        "So long as the multicast traffic from CARP does not cross into the other segments, the same VHID can be used on separate interfaces."
        I have not rule for communicate between carped interfaces.
        You tell it is ok to do that ?

        P 1 Reply Last reply Jun 21, 2025, 9:36 PM Reply Quote 0
        • P Offline
          patient0 @BenGonGon
          last edited by Jun 21, 2025, 9:36 PM

          @BenGonGon said in Can I duplicate VHID group in CARP VirtualIP ?:

          You tell it is ok to do that ?

          Yes, as long as they are not on the same layer 2 broadcast domain. Different VLANs can have the same CARP VHID and I guess you should not have multicast forwarding from one VLAN to another.

          B 1 Reply Last reply Jun 21, 2025, 9:47 PM Reply Quote 0
          • B Offline
            BenGonGon @patient0
            last edited by BenGonGon Jun 21, 2025, 10:15 PM Jun 21, 2025, 9:47 PM

            @patient0 Thank you very much for yours knowledges.

            1 Reply Last reply Reply Quote 0
            5 out of 5
            • First post
              5/5
              Last post
            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.
              This community forum collects and processes your personal information.
              consent.not_received