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    HA CARP - IPv6 Two masters

    Scheduled Pinned Locked Moved HA/CARP/VIPs
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    • W Offline
      whisk0r
      last edited by

      I'm seeing exactly this problem on 2 pairs of (vm) firewalls running 2.4.3-RELEASE-p1 (amd64) - carp works perfectly on v4, but v6 gets into master-master state. Rebooting the secondary solves it.

      Both pairs are new builds with config restored.

      Happy to provide any debug info that would help.

      Thanks

      Ed

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      • DerelictD Offline
        Derelict LAYER 8 Netgate
        last edited by

        Something related to the issues outlined above or something that works then spontaneously goes MASTER/MASTER?

        Chattanooga, Tennessee, USA
        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
        Do Not Chat For Help! NO_WAN_EGRESS(TM)

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        • W Offline
          whisk0r
          last edited by

          It seems to be exactly the same symptoms, but I've checked there's no leading 0's in the ipv6 address, and it's all in lower case. It got into the master-master state when doing a failover to the secondary and back again.

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          • DerelictD Offline
            Derelict LAYER 8 Netgate
            last edited by

            You are going to have to provide more details. You might consider starting another thread since you are probably looking at a different problem, a layer 2 issue, or a misconfiguration.

            Chattanooga, Tennessee, USA
            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
            Do Not Chat For Help! NO_WAN_EGRESS(TM)

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            • S Offline
              SteveITS Rebel Alliance @whisk0r
              last edited by

              @whisk0r Just lurking by... I have seen this behavior (WAN IPv6 on router2 left as Master) for a while. I've been using the general process:

              upgrade router2
              Enter Persistent Maintenance Mode on router1
              upgrade router1
              Leave Persistent Maintenance Mode

              ...and router2 has the one IPv6 stuck on Master and needs a restart.

              I do know it happened several times on 2.3.x and 2.4.x upgrades when we were running pfSense under VMs, under Virtuozzo. Possibly not every time. We have since installed two Netgate SG-4860, and our last ticket to upgrade to 2.4.3 (the only upgrade since the 4860s) didn't specifically say we had this issue then.

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              • DerelictD Offline
                Derelict LAYER 8 Netgate
                last edited by

                I never see that. You probably want to check that VIP for any of the issues described above.

                Chattanooga, Tennessee, USA
                A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                • S Offline
                  SteveITS Rebel Alliance
                  last edited by

                  Since I opened my mouth I felt obligated to test this tonight. I entered persistent maintenance mode a couple times and did not see issues switching back. So I suppose it might be related to our prior setup.

                  It didn't happen every time, but I'd say a majority of the time. Then again I seem to recall it happening occasionally just entering and leaving persistent maintenance mode so I don't think it's related to the upgrading process.

                  The VIPs are lower case and have no leading zero, however the LAN IP is "2607:xxxx:0:4c::1/64 (vhid: 154)" with a lone zero in there. Note it was the WAN IP that got stuck in dual Master (2607:xxxx::12/125 (vhid: 153)).

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                  • Y Offline
                    yarick123 @Derelict
                    last edited by yarick123

                    @derelict I have just experienced an interesting mutation of the issue https://redmine.pfsense.org/issues/6579 . My IPv6 CARP virtual address was ending with zero: fddf:c8:4011:13:: . Writing it exactly so was not possible in "Firewall / Virtual IPs / Edit" - I got the following error message:

                    The following input errors were detected:

 * The network address cannot be used for this VIP

                    so, I had to put down fddf:c8:4011:13::0 . It caused the described problem. After changing the CARP address to fddf:c8:4011:13::100 the problem went away.

                    I added this information also to the issue.

                    P.S. I am using the latest pfSense: 2.4.4-RELEASE-p2

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                    • S Offline
                      SteveITS Rebel Alliance @yarick123
                      last edited by

                      This post is deleted!
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                      • DerelictD Offline
                        Derelict LAYER 8 Netgate
                        last edited by

                        There is no network/broadcast address in IPv6. PREFIX::0/64 is a valid host address. It is possible there is a problem with a validation code in the gui.

                        Chattanooga, Tennessee, USA
                        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                        Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                        • RodrinoyR Offline
                          Rodrinoy @awebster
                          last edited by

                          @awebster that was exactly what i tought too!!!

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