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    NEW CARP Setup seems to have a mind of it's own and secret firewall rules - limited/no logs

    Scheduled Pinned Locked Moved HA/CARP/VIPs
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    • H Offline
      Hass
      last edited by

      Thanks @Derelict I'll step through this all again now and check them off, the only one I know didn't work the last time was DNS (line below). But I'll test that agin on a VLAN now being used. FYI, we're using DNS Resolver (within pfSense)

      Set DHCP to give a CARP VIP as the DNS server to inside hosts if you are using pfSense for DNS.

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      • DerelictD Offline
        Derelict LAYER 8 Netgate
        last edited by Derelict

        It should work for DNS to send them to both nodes' interface addresses but if one is down it will have to time out and might induce client-perceptible delays. If you want multiple DNS servers for your clients my suggestion would be to put them on something off the firewall/HA pair, such as dedicated unbound/BIND servers, domain controllers, etc.

        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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        • H Offline
          Hass
          last edited by

          @Derelict Yes understood and we tried to set it to the CARP vip it just didn't provide an DNS resolution. But testing again now

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          • DerelictD Offline
            Derelict LAYER 8 Netgate
            last edited by

            You can always just dig @carp_vip www.google.com from an inside host to see if unbound is listening there. It should be.

            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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            • H Offline
              Hass
              last edited by

              @Derelict it looks like DNS on the .1 (CARP VIP) works on the two OPT networks (GUEST and LAB) but not on the LAN Network. I just get a timed out when I try and lookup against DNS on the LAN CARP VIP

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              • DerelictD Offline
                Derelict LAYER 8 Netgate
                last edited by Derelict

                Are you passing DNS traffic to the LAN CARP VIP on that interface?

                Did you change the default listening interfaces on unbound from All?

                Is the source address of the query from an address on a pfSense interface or from a network routed from a downstream router on LAN?

                Anything interesting logged in the DNS Resolver logs?

                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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                • H Offline
                  Hass
                  last edited by

                  Hi Have the interface in DNS Resolver setup with the LAN and LAN CARP VIP highlighted.

                  If I try and do a packet capture of the firewall on the LAN interface for that LAN CARP VIP, I don't see any traffic for a DNS lookup or even a PING (which works).

                  FYI< I checked this on both firewalls to be sure.

                  Hass

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                  • H Offline
                    Hass
                    last edited by

                    I tried a DENY rule to see if I could just get the firewall to say something but no dice

                    b9828745-7d8b-4341-bbf1-695ea1cf7a51-image.png

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                    • H Offline
                      Hass
                      last edited by

                      !!!!!!!!, it might have been the old Firewall, it had been disabled but when I took a loot at it, it still had a light of lights on the ports... I'm going back through all my testing now.

                      I just wanted to let you know @Derelict

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                      • H Offline
                        Hass
                        last edited by

                        @Derelict Just wanted to let you know know it's looking allot better now and I think it was just that lingering interface that should have been down that caused the issue (which then caused others).

                        Thanks for coming back so quick on a Sunday. FYI, I've now hit another Intel 10G known issue which I'll post once I re-read the previous ones

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