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    How should it run ?

    Scheduled Pinned Locked Moved HA/CARP/VIPs
    23 Posts 4 Posters 8.7k Views
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    • J
      Juve
      last edited by

      Ok so I dit what you said, I came back to carp setting and reactivated the config_sync for virtual IPs.
      Clicking save has forced a sync.

      when clicking save the node 2 has taken over the node 1 and 25 minutes after this it is still the same. here is capture showin both firewall having an advskew at 200:

      carp.png_thumb
      carp.png
      carp.png_thumb

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      • J
        Juve
        last edited by

        no ideas ?

        Do you think I should reinstall it and then restoring my current configuration ?

        Thx.

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        • H
          hoba
          last edited by

          After activating CARP the advertising frequency will be set to 200 for a bit before it goes to the originally set value. This had to be done to work around a bug in CARP. However as your machines don't seem to do this something seems to stop before it does that and I don't have a clue what prevents this from finishing completely.  :(

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          • J
            Juve
            last edited by

            I noticed that the /tmp/carp.sh contains advskews at 200.
            If it was running fine, after the few seconds (or minutes) at 200 this file would have been changed with the advskew at the set value ?

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            • S
              sullrich
              last edited by

              Yes.

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              • J
                Juve
                last edited by

                Do you have an Idea of how I could determine what is killing this process ? What should I monitore at startup ? name of a script or something like that.

                Many thx for your help guys

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                • S
                  sullrich
                  last edited by

                  There should be a php process running with rc.bootup .. It should wait 120 seconds before it exits.

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                  • J
                    Juve
                    last edited by

                    Ok I monitored it and after the 120 seconds it stopped like it should (I saw no errors or exception) but my CARP IPs were still at 200 on each box. The (weird) fact is that they are really able to communicate since they take over each other….

                    The only thing which is a bit "strange" on that boxes is that I'm natting on WAN interface packets sourced by WAN interface to a public IP (Most likely ntp requests, pfsense packages retrieval and download...) because my WAN lies in a private network. The public network is handled by the DMZ and my ISP router is configured to forward that public range through pfSense. Do you think that NAT rule should break the way it should work?

                    ISP ROUTER
                    |
                    |(private range)
                    |
                    PFSENSE-------------------------DMZ (public IP range)
                    |
                    |LAN

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                    • S
                      sullrich
                      last edited by

                      And the master's ADVSKEW is set to what again?

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                      • J
                        Juve
                        last edited by

                        Master : 0
                        Slave 100

                        configuration sync enabled between firewalls

                        master.GIF_thumb
                        master.GIF
                        slave.GIF
                        slave.GIF_thumb
                        settings.GIF
                        settings.GIF_thumb
                        slave.GIF_thumb
                        master.GIF_thumb
                        settings.GIF_thumb

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                        • S
                          sullrich
                          last edited by

                          Hrm.  Wish that I could reproduce this…

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                          • J
                            jakehathaway
                            last edited by

                            I am seeing the same issue. I have 3 carp addresses, lan, wan, qmoe plus the pfsense internal address. All items seem to sync just fine. I created the backup from the master. I have all 3 master carps at 0 and all 3 backup carps at 100. sometimes only 1 or 2 of the carps failover and it just holds them. I have to re-save carp settings on backup or reboot backup pf box to get it to fail back.
                            I would love to send any configs, or debug logs if I can do something to help you see the issue. Please let me know.
                            Currently my boxes are not in a production environment so now is the prime time to debug.
                            Thanks.

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                            • J
                              Juve
                              last edited by

                              Have you checked if your switches are not blocking CARP traffic ?
                              Just to be sure….

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                              • S
                                sullrich
                                last edited by

                                Switches are constantly an issue with CARP it seems.  Definitely ensure that its not being blocked/stopped at the switch level.

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                                • J
                                  jakehathaway
                                  last edited by

                                  I don't have my pfsync interfaces plugged into a switch, they are plugged in with a crossover cable to each other.

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                                  • S
                                    sullrich
                                    last edited by

                                    CARP != pfSync.  CARP traffic will still be present on all interfaces that have a CARP address assigned.  If they cannot communicate then it will not work.

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                                    • H
                                      hoba
                                      last edited by

                                      CARP is the mechnism used to detect the state of machines in a cluster and to swap the macadress back and forth between clustermembers. This traffic will happen on every interface where a carp ip resides.

                                      pfSync is an additional mechanism used to sync the statetables between clustermembers so that already established connections don't need to be reestablished after a failover. This traffic will happen on the interface that you set as sync interface.

                                      Both features do work independently of each other but are often used together.

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                                      • J
                                        jakehathaway
                                        last edited by

                                        So what do I look for on the switch as CARP traffic?

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                                        • H
                                          hoba
                                          last edited by

                                          See http://www.countersiege.com/doc/pfsync-carp/ for how it works.

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