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    HA CARP - IPv6 Two masters

    HA/CARP/VIPs
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    • R
      rhwendt
      last edited by

      Hello,

      I just setup two devices running pfsense 2.4.2 running in ha mode.

      I have several carp interfaces however the ipv6 carp interfaces show master on each device and the ipv4 carp interfaces are working properly.

      I have checked the broadcast domain for other vrrp devices and the vhid that the carp interfaces are using are not in use anywhere else.

      Im really not sure why its not working. Again this is only affecting ipv6

      Any help would be greatly appreciated.

      –primary device--
      CARP Interface IP Address Status
      WAN@210 66.X.X.30 MASTER
      WAN@211 2001:X:X:X::F MASTER
      LAN@212 172.26.8.65 MASTER
      LAN@213 fd57:187e:523f:0715::f MASTER
      RFC_BACKEND@214 172.26.8.30 MASTER

      --backup device--
      CARP Interface IP Address Status
      WAN@210 66.X.X.30 BACKUP
      WAN@211 2001:X:X:X::F MASTER
      LAN@212 172.26.8.65 BACKUP
      LAN@213 fd57:187e:523f:0715::f MASTER
      RFC_BACKEND@214 172.26.8.30 BACKUP

      1 Reply Last reply Reply Quote 0
      • R
        rhwendt
        last edited by

        Im seeing the following in the logs on the backup firewall

        Dec 4 17:40:20 php-fpm 58958 /xmlrpc.php: The command '/sbin/ifconfig 'bce0.715' inet6 'fd57:187e:523f:0715::f' delete' returned exit code '1', the output was 'ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address'
        Dec 4 17:40:20 php-fpm 58958 /xmlrpc.php: The command '/sbin/ifconfig 'bce0.210' inet6 '2001:X:X:X::F' delete' returned exit code '1', the output was 'ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address'
        Dec 4 17:40:20 kernel ifa_maintain_loopback_route: insertion failed for interface bce0.715: 17
        Dec 4 17:40:20 php-fpm 58958 /xmlrpc.php: The command '/sbin/ifconfig bce0.715 inet6 'fd57:187e:523f:0715::f' prefixlen '64' alias vhid '213'' returned exit code '1', the output was 'ifconfig: ioctl (SIOCAIFADDR): File exists'
        Dec 4 17:40:20 kernel ifa_maintain_loopback_route: insertion failed for interface bce0.210: 17
        Dec 4 17:40:20 php-fpm 58958 /xmlrpc.php: The command '/sbin/ifconfig bce0.210 inet6 '2001:X:X:X::F' prefixlen '64' alias vhid '211'' returned exit code '1', the output was 'ifconfig: ioctl (SIOCAIFADDR): File exists'

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        • awebsterA
          awebster
          last edited by

          What are the actual real IPv6 IPs?
          Are you assigning fd57 from the same subnet as the actual intefaces?
          Why would you want to use unique local addresses on IPv6?  That's not the design philosophy of IPv6.

          –A.

          RodrinoyR 1 Reply Last reply Reply Quote 1
          • DerelictD
            Derelict LAYER 8 Netgate
            last edited by

            Your switching is probably not properly passing traffic to multicast destination ff02::12.

            Diagnostics > Packet Capture on the primary:

            Interface: One with an IPv6 CARP VIP
            Address Family: IPv6-Only
            Protocol: any (Capturing CARP here doesn't seem to work.. Problem for another day.)
            Host Address: ff02::12
            Count: 5

            You should get something like this. Your source address will be different but should also start with fe80:

            02:45:01.595176 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36
            02:45:02.601844 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36
            02:45:03.645118 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36
            02:45:04.652798 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36
            02:45:05.668150 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36

            Do the same capture on the Secondary. You should see the same thing:

            02:46:12.490962 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36
            02:46:13.550945 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36
            02:46:14.611020 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36
            02:46:15.670940 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36
            02:46:16.728002 IP6 fe80::f092:faff:fe6a:3279 > ff02::12: ip-proto-112 36

            You will probably not see that. You will probably see the secondary transmitting from its own link-local address because it is not receiving the multicasts from the primary and is, properly, treating that CARP VIP as down. If that is the case you need to fix your layer 2.

            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)

            1 Reply Last reply Reply Quote 0
            • R
              rhwendt
              last edited by

              I didn't include the actual IP addresses because I didn't want to expose the firewall but it's locked down so the point is moot.

              This pair of firewalls will be the gateway for vpn users. I have another vpn appliance to handle that.
              The VPN will give users RFC 1918 / 4193 (ULA) addresses and the firewall pair which is the gateway for those usesers will perform NAT / NPT to Globally routed addresses. I don't know if this is best practice but this is the solution I am trying to implement.

              – carp --
              WAN@210 66.133.130.30 MASTER
              WAN@211 2001:1960:20:D2::F MASTER
              LAN@212 172.26.8.65 MASTER
              LAN@213 fd57:187e:523f:0715::f MASTER
              RFC_BACKEND@214 172.26.8.30 MASTER

              -- primary --
              bce0.210: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                      options=80003 <rxcsum,txcsum,linkstate>ether 00:24:81:89:11:f6
                      inet6 fe80::224:81ff:fe89:11f6%bce0.210 prefixlen 64 scopeid 0xd
                      inet6 2001:1960:20:d2::a prefixlen 64
                      inet6 2001:1960:20:d2::f prefixlen 64 vhid 211
                      inet 66.133.130.28 netmask 0xfffffff8 broadcast 66.133.130.31
                      inet 66.133.130.30 netmask 0xfffffff8 broadcast 66.133.130.31 vhid 210
                      nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                      status: active
                      vlan: 210 vlanpcp: 0 parent interface: bce0
                      carp: MASTER vhid 210 advbase 1 advskew 0
                      carp: MASTER vhid 211 advbase 1 advskew 0
                      groups: vlan
              bce0.710: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                      options=80003 <rxcsum,txcsum,linkstate>ether 00:24:81:89:11:f6
                      inet6 fe80::224:81ff:fe89:11f6%bce0.710 prefixlen 64 scopeid 0xe
                      inet 172.26.8.28 netmask 0xfffffff8 broadcast 172.26.8.31
                      inet 172.26.8.30 netmask 0xfffffff8 broadcast 172.26.8.31 vhid 214
                      nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                      status: active
                      vlan: 710 vlanpcp: 0 parent interface: bce0
                      carp: MASTER vhid 214 advbase 1 advskew 0
                      groups: vlan
              bce0.715: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                      options=80003 <rxcsum,txcsum,linkstate>ether 00:24:81:89:11:f6
                      inet6 fe80::224:81ff:fe89:11f6%bce0.715 prefixlen 64 scopeid 0xf
                      inet6 fd57:187e:523f:715::a prefixlen 64
                      inet6 fd57:187e:523f:715::f prefixlen 64 vhid 213
                      inet 172.26.8.66 netmask 0xffffffc0 broadcast 172.26.8.127
                      inet 172.26.8.65 netmask 0xffffffc0 broadcast 172.26.8.127 vhid 212
                      nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                      status: active
                      vlan: 715 vlanpcp: 0 parent interface: bce0
                      carp: MASTER vhid 212 advbase 1 advskew 0
                      carp: MASTER vhid 213 advbase 1 advskew 0
                      groups: vlan

              -- backup --

              bce0.210: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                      options=80003 <rxcsum,txcsum,linkstate>ether 00:24:81:88:f1:06
                      inet6 fe80::224:81ff:fe88:f106%bce0.210 prefixlen 64 scopeid 0xd
                      inet6 2001:1960:20:d2::b prefixlen 64
                      inet 66.133.130.29 netmask 0xfffffff8 broadcast 66.133.130.31
                      inet 66.133.130.30 netmask 0xfffffff8 broadcast 66.133.130.31 vhid 210
                      nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                      status: active
                      vlan: 210 vlanpcp: 0 parent interface: bce0
                      carp: MASTER vhid 211 advbase 1 advskew 100
                      carp: BACKUP vhid 210 advbase 1 advskew 100
                      groups: vlan
              bce0.710: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                      options=80003 <rxcsum,txcsum,linkstate>ether 00:24:81:88:f1:06
                      inet6 fe80::224:81ff:fe88:f106%bce0.710 prefixlen 64 scopeid 0xe
                      inet 172.26.8.29 netmask 0xfffffff8 broadcast 172.26.8.31
                      inet 172.26.8.30 netmask 0xfffffff8 broadcast 172.26.8.31 vhid 214
                      nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                      status: active
                      vlan: 710 vlanpcp: 0 parent interface: bce0
                      carp: BACKUP vhid 214 advbase 1 advskew 100
                      groups: vlan
              bce0.715: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                      options=80003 <rxcsum,txcsum,linkstate>ether 00:24:81:88:f1:06
                      inet6 fe80::224:81ff:fe88:f106%bce0.715 prefixlen 64 scopeid 0xf
                      inet6 fd57:187e:523f:715::b prefixlen 64
                      inet 172.26.8.67 netmask 0xffffffc0 broadcast 172.26.8.127
                      inet 172.26.8.65 netmask 0xffffffc0 broadcast 172.26.8.127 vhid 212
                      nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                      status: active
                      vlan: 715 vlanpcp: 0 parent interface: bce0
                      carp: MASTER vhid 213 advbase 1 advskew 100
                      carp: BACKUP vhid 212 advbase 1 advskew 100
                      groups: vlan

              -- primary --
              15:29:54.265266 IP6 fe80::224:81ff:fe89:11f6 > ff02::12: ip-proto-112 36
              15:29:55.088217 IP6 fe80::224:81ff:fe88:f106 > ff02::12: ip-proto-112 36
              15:29:55.325010 IP6 fe80::224:81ff:fe89:11f6 > ff02::12: ip-proto-112 36
              15:29:56.374974 IP6 fe80::224:81ff:fe89:11f6 > ff02::12: ip-proto-112 36
              15:29:56.485201 IP6 fe80::224:81ff:fe88:f106 > ff02::12: ip-proto-112 36

              -- backup --
              5:34:50.696588 IP6 fe80::224:81ff:fe88:f106 > ff02::12: ip-proto-112 36
              15:34:50.939315 IP6 fe80::224:81ff:fe89:11f6 > ff02::12: ip-proto-112 36
              15:34:51.943702 IP6 fe80::224:81ff:fe89:11f6 > ff02::12: ip-proto-112 36
              15:34:52.128312 IP6 fe80::224:81ff:fe88:f106 > ff02::12: ip-proto-112 36
              15:34:52.953321 IP6 fe80::224:81ff:fe89:11f6 > ff02::12: ip-proto-112 36</full-duplex></performnud,auto_linklocal></rxcsum,txcsum,linkstate></up,broadcast,running,promisc,simplex,multicast></full-duplex></performnud,auto_linklocal></rxcsum,txcsum,linkstate></up,broadcast,running,promisc,simplex,multicast></full-duplex></performnud,auto_linklocal></rxcsum,txcsum,linkstate></up,broadcast,running,promisc,simplex,multicast></full-duplex></performnud,auto_linklocal></rxcsum,txcsum,linkstate></up,broadcast,running,promisc,simplex,multicast></full-duplex></performnud,auto_linklocal></rxcsum,txcsum,linkstate></up,broadcast,running,promisc,simplex,multicast></full-duplex></performnud,auto_linklocal></rxcsum,txcsum,linkstate></up,broadcast,running,promisc,simplex,multicast>

              1 Reply Last reply Reply Quote 0
              • DerelictD
                Derelict LAYER 8 Netgate
                last edited by

                My secondary:

                xn2: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                ether 4e:f6:47:4c:0e:df
                hwaddr 4e:f6:47:4c:0e:df
                inet6 fe80::4cf6:47ff:fe4c:edf%xn2 prefixlen 64 scopeid 0x7
                inet6 2001:beef:cafe:7e02::3 prefixlen 64
                inet6 2001:beef:cafe:7e02::1 prefixlen 64 vhid 240
                inet 172.25.237.3 netmask 0xffffff00 broadcast 172.25.237.255
                inet 172.25.237.1 netmask 0xffffff00 broadcast 172.25.237.255 vhid 237
                nd6 options=21 <performnud,auto_linklocal>media: Ethernet manual
                status: active
                carp: BACKUP vhid 237 advbase 1 advskew 100
                carp: BACKUP vhid 240 advbase 1 advskew 100

                Your secondary:

                bce0.715: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                        options=80003 <rxcsum,txcsum,linkstate>ether 00:24:81:88:f1:06
                        inet6 fe80::224:81ff:fe88:f106%bce0.715 prefixlen 64 scopeid 0xf
                        inet6 fd57:187e:523f:715::b prefixlen 64
                        inet 172.26.8.67 netmask 0xffffffc0 broadcast 172.26.8.127
                        inet 172.26.8.65 netmask 0xffffffc0 broadcast 172.26.8.127 vhid 212
                        nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                        status: active
                        vlan: 715 vlanpcp: 0 parent interface: bce0
                        carp: MASTER vhid 213 advbase 1 advskew 100
                        carp: BACKUP vhid 212 advbase 1 advskew 100
                        groups: vlan

                Note the absence of the CARP VIP on the interface itself.

                It looks like the interface is confused. Not sure. Have you rebooted the secondary?

                I was able to get mine into a strange state but only by manually issuing ifconfig commands in the shell. You probably want to make sure everything looks good in the VIP settings and reboot the secondary.</full-duplex></performnud,auto_linklocal></rxcsum,txcsum,linkstate></up,broadcast,running,promisc,simplex,multicast></performnud,auto_linklocal></up,broadcast,running,promisc,simplex,multicast>

                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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                • R
                  rhwendt
                  last edited by

                  Yeah i noticed that as well when i was replying earlier.  I have rebooted the device and that doesnt clear the issue.
                  I'm pretty sure its not a L2 issue because the v4 carp vip works and is on the same vlan 210/715.

                  I am seeing this in the logs in the backup device.

                  Dec 5 20:18:45 php-fpm 71243 /xmlrpc.php: The command '/sbin/ifconfig 'bce0.715' inet6 'fd57:187e:523f:0715::f' delete' returned exit code '1', the output was 'ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address'
                  Dec 5 20:18:45 php-fpm 71243 /xmlrpc.php: The command '/sbin/ifconfig 'bce0.210' inet6 '2001:1960:20:D2::F' delete' returned exit code '1', the output was 'ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address'
                  Dec 5 20:18:45 kernel ifa_maintain_loopback_route: insertion failed for interface bce0.715: 17
                  Dec 5 20:18:45 php-fpm 71243 /xmlrpc.php: The command '/sbin/ifconfig bce0.715 inet6 'fd57:187e:523f:0715::f' prefixlen '64' alias vhid '213'' returned exit code '1', the output was 'ifconfig: ioctl (SIOCAIFADDR): File exists'
                  Dec 5 20:18:45 kernel ifa_maintain_loopback_route: insertion failed for interface bce0.210: 17
                  Dec 5 20:18:45 php-fpm 71243 /xmlrpc.php: The command '/sbin/ifconfig bce0.210 inet6 '2001:1960:20:D2::F' prefixlen '64' alias vhid '211'' returned exit code '1', the output was 'ifconfig: ioctl (SIOCAIFADDR): File exists'

                  1 Reply Last reply Reply Quote 0
                  • DerelictD
                    Derelict LAYER 8 Netgate
                    last edited by

                    Yeah. I get that is what you are seeing.

                    There is nothing systemic regarding IPv6 and CARP. It has to be something in your config.

                    Make sure all the interfaces match exactly in order and in name.

                    Make sure all the IP aliases and other VIPs match exactly, except for the advskew.

                    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)

                    1 Reply Last reply Reply Quote 0
                    • R
                      rhwendt
                      last edited by

                      Ok I figured out how to get it to a normal state (all master on primary and all backup on secondary).
                      You need to reboot the backup firewall, and while its rebooting clear the firewall states on the primary.
                      Carp failover works perfectly when its like this but there is still an issue.

                      ANY configuration sync (manual/auto) from the primary to the backup causes the backup to become master on the two IPV6 carps.

                      1 Reply Last reply Reply Quote 0
                      • DerelictD
                        Derelict LAYER 8 Netgate
                        last edited by

                        None of that is necessary in a "normal" environment. I reboot the VMs all the time. Just works.

                        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)

                        1 Reply Last reply Reply Quote 0
                        • R
                          rhwendt
                          last edited by

                          @Derelict:

                          None of that is necessary in a "normal" environment. I reboot the VMs all the time. Just works.

                          I'm not really following you on this one. I'm not running these on VM's but that doesn't matter.
                          I don't want to have to reboot a physical machine or a VM every time I make a configuration change.

                          This is not a L2 issue. This smells like a bug.

                          1 Reply Last reply Reply Quote 0
                          • awebsterA
                            awebster
                            last edited by

                            Works great for me… (IPs masked to protect the innocent), but I did find that increasing ADVBASE to 10 on the backup as opposed to default 1 helped alot (maybe its because these are running on ESXi), anyway that's my recipe and I'm sticking to it.
                            Consequently on the backup uncheck "virtual IPs" in the System / High Availability Sync page.

                            MASTER

                            em0: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                                    options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:0c:29:43:51:32
                                    hwaddr 00:0c:29:43:51:32
                                    inet6 fe80::20c:29ff:fe43:5132%em0 prefixlen 64 scopeid 0x1
                                    inet AA.BB.CC.226 netmask 0xfffffff8 broadcast AA.BB.CC.231
                                    inet6 xxxx:xxxx::1c prefixlen 125
                            **        inet6 xxxx:xxxx::1e prefixlen 125 vhid 244**
                            **        inet AA.BB.CC.225 netmask 0xfffffff8 broadcast AA.BB.CC.231 vhid 242**
                                    nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                                    status: active
                                    carp: MASTER vhid 244 advbase 1 advskew 0
                                    carp: MASTER vhid 242 advbase 1 advskew 0
                            em1: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                                    options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:0c:29:43:51:3c
                                    hwaddr 00:0c:29:43:51:3c
                                    inet6 fe80::20c:29ff:fe43:513c%em1 prefixlen 64 scopeid 0x2
                                    inet XX.YY.ZZ.251 netmask 0xffffff00 broadcast XX.YY.ZZ.255
                                    inet6 xxxx:xxxx:10:2800::2 prefixlen 64
                            **        inet XX.YY.ZZ.254 netmask 0xffffff00 broadcast XX.YY.ZZ.255 vhid 240**
                            **        inet6 xxxx:xxxx:10:2800::1 prefixlen 64 vhid 241**
                                    nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                                    status: active
                                    carp: MASTER vhid 240 advbase 1 advskew 0
                                    carp: MASTER vhid 241 advbase 1 advskew 0

                            BACKUP

                            em0: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                                    options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:0c:29:4c:da:30
                                    hwaddr 00:0c:29:4c:da:30
                                    inet6 fe80::20c:29ff:fe4c:da30%em0 prefixlen 64 scopeid 0x1
                                    inet AA.BB.CC.227 netmask 0xfffffff8 broadcast AA.BB.CC.231
                                    inet6 xxxx:xxxx::1d prefixlen 125
                            **        inet6 xxxx:xxxx::1e prefixlen 125 vhid 244**
                            **        inet AA.BB.CC.225 netmask 0xfffffff8 broadcast AA.BB.CC.231 vhid 242**
                                    nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                                    status: active
                                    carp: BACKUP vhid 244 advbase 10 advskew 100
                                    carp: BACKUP vhid 242 advbase 10 advskew 100
                            em1: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                                    options=9b <rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum>ether 00:0c:29:4c:da:3a
                                    hwaddr 00:0c:29:4c:da:3a
                                    inet6 fe80::20c:29ff:fe4c:da3a%em1 prefixlen 64 scopeid 0x2
                                    inet XX.YY.ZZ.252 netmask 0xffffff00 broadcast XX.YY.ZZ.255
                                    inet6 xxxx:xxxx:10:2800::3 prefixlen 64
                            **        inet XX.YY.ZZ.254 netmask 0xffffff00 broadcast XX.YY.ZZ.255 vhid 240**
                            **        inet6 xxxx:xxxx:10:2800::1 prefixlen 64 vhid 241**
                                    nd6 options=21 <performnud,auto_linklocal>media: Ethernet autoselect (1000baseT <full-duplex>)
                                    status: active
                                    carp: BACKUP vhid 240 advbase 10 advskew 100
                                    carp: BACKUP vhid 241 advbase 10 advskew 100</full-duplex></performnud,auto_linklocal></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,promisc,simplex,multicast></full-duplex></performnud,auto_linklocal></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,promisc,simplex,multicast></full-duplex></performnud,auto_linklocal></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,promisc,simplex,multicast></full-duplex></performnud,auto_linklocal></rxcsum,txcsum,vlan_mtu,vlan_hwtagging,vlan_hwcsum></up,broadcast,running,promisc,simplex,multicast>

                            –A.

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                            • DerelictD
                              Derelict LAYER 8 Netgate
                              last edited by

                              Doesn't sound like a bug because far too many people are NOT seeing the issue. It is something specific to the way you have it configured or something in your environment.

                              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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                              • R
                                rhwendt
                                last edited by

                                Thank you all for helping.

                                I just factory rest both devices today and set them up from scratch again.
                                All the carp interfaces were working as expected except the IPV6 ULA CARP for the LAN (fd57:187e:523f:715::f/64)
                                It was exhibiting the same issues i was seeing prior to the factory reset, both primary and secondary both showing master.
                                The IPV6 GUA on the wan was working as expected
                                If I rebooted the secondary firewall all the carp interfaces would be in backup status. Anytime I synced the config from the primary it would cause the double master status.

                                I was able to find a solution based off what awebster said about unchecking the virtual ip in the HA sync.
                                I unchecked this option and rebooted the secondary firewall and now all the carp interfaces are showing the correct status and config syncing doesnt affect them.

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                                • DerelictD
                                  Derelict LAYER 8 Netgate
                                  last edited by

                                  Just to be sure there wasn't something somewhere that misbehaved with ULA and CARP:

                                  Primary:

                                  xn5: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                                  options=3 <rxcsum,txcsum>ether ee:c2:d9:d8:55:46
                                  hwaddr ee:c2:d9:d8:55:46
                                  inet6 fe80::ecc2:d9ff:fed8:5546%xn5 prefixlen 64 scopeid 0xd
                                  inet6 fda9:cfd8:f9f:1000::2 prefixlen 64
                                  inet6 fda9:cfd8:f9f:1000::1 prefixlen 64 vhid 243
                                  inet 192.168.123.2 netmask 0xffffff00 broadcast 192.168.123.255
                                  inet 192.168.123.1 netmask 0xffffff00 broadcast 192.168.123.255 vhid 242
                                  nd6 options=21 <performnud,auto_linklocal>media: Ethernet manual
                                  status: active
                                  carp: MASTER vhid 242 advbase 1 advskew 0
                                  carp: MASTER vhid 243 advbase 1 advskew 0

                                  Secondary:

                                  xn5: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                                  ether 6e:24:e4:84:f5:f9
                                  hwaddr 6e:24:e4:84:f5:f9
                                  inet6 fe80::6c24:e4ff:fe84:f5f9%xn5 prefixlen 64 scopeid 0xa
                                  inet6 fda9:cfd8:f9f:1000::3 prefixlen 64
                                  inet6 fda9:cfd8:f9f:1000::1 prefixlen 64 vhid 243
                                  inet 192.168.123.3 netmask 0xffffff00 broadcast 192.168.123.255
                                  inet 192.168.123.1 netmask 0xffffff00 broadcast 192.168.123.255 vhid 242
                                  nd6 options=21 <performnud,auto_linklocal>media: Ethernet manual
                                  status: active
                                  carp: BACKUP vhid 242 advbase 1 advskew 100
                                  carp: BACKUP vhid 243 advbase 1 advskew 100

                                  Enter CARP Maintenance mode on Primary:

                                  Primary:

                                  xn5: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                                  options=3 <rxcsum,txcsum>ether ee:c2:d9:d8:55:46
                                  hwaddr ee:c2:d9:d8:55:46
                                  inet6 fe80::ecc2:d9ff:fed8:5546%xn5 prefixlen 64 scopeid 0xd
                                  inet6 fda9:cfd8:f9f:1000::2 prefixlen 64
                                  inet6 fda9:cfd8:f9f:1000::1 prefixlen 64 vhid 243
                                  inet 192.168.123.2 netmask 0xffffff00 broadcast 192.168.123.255
                                  inet 192.168.123.1 netmask 0xffffff00 broadcast 192.168.123.255 vhid 242
                                  nd6 options=21 <performnud,auto_linklocal>media: Ethernet manual
                                  status: active
                                  carp: BACKUP vhid 242 advbase 1 advskew 254
                                  carp: BACKUP vhid 243 advbase 1 advskew 254

                                  Secondary:

                                  xn5: flags=8943 <up,broadcast,running,promisc,simplex,multicast>metric 0 mtu 1500
                                  ether 6e:24:e4:84:f5:f9
                                  hwaddr 6e:24:e4:84:f5:f9
                                  inet6 fe80::6c24:e4ff:fe84:f5f9%xn5 prefixlen 64 scopeid 0xa
                                  inet6 fda9:cfd8:f9f:1000::3 prefixlen 64
                                  inet6 fda9:cfd8:f9f:1000::1 prefixlen 64 vhid 243
                                  inet 192.168.123.3 netmask 0xffffff00 broadcast 192.168.123.255
                                  inet 192.168.123.1 netmask 0xffffff00 broadcast 192.168.123.255 vhid 242
                                  nd6 options=21 <performnud,auto_linklocal>media: Ethernet manual
                                  status: active
                                  carp: MASTER vhid 242 advbase 1 advskew 100
                                  carp: MASTER vhid 243 advbase 1 advskew 100

                                  Fails back fine, too.</performnud,auto_linklocal></up,broadcast,running,promisc,simplex,multicast></performnud,auto_linklocal></rxcsum,txcsum></up,broadcast,running,promisc,simplex,multicast></performnud,auto_linklocal></up,broadcast,running,promisc,simplex,multicast></performnud,auto_linklocal></rxcsum,txcsum></up,broadcast,running,promisc,simplex,multicast>

                                  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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                                  • A
                                    aeburriel
                                    last edited by

                                    I've been dealing with the same problem in my HA setup and it turned to be related to bug #6579
                                    https://redmine.pfsense.org/issues/6579

                                    The affected CARP IPv6 address was something like:
                                    2001:aaaa:bbb:ccc:0d00:ffff:ffff:ffff
                                    After removing leading zeros:
                                    2001:aaaa:bbb:ccc:d00:ffff:ffff:ffff

                                    CARP started to work reliably on that interface

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                                    • DerelictD
                                      Derelict LAYER 8 Netgate
                                      last edited by

                                      Nice catch.

                                      LAN@213  fd57:187e:523f:0715::f    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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                                      • I
                                        IcePick
                                        last edited by

                                        I am having exactly the same as this since moving to 2.4 from 2.3.5
                                        interesting only on 2 of the 4 IPv6 CARPs
                                        they were the only 2 that could use :: in their address
                                        I tried expanding to 0:0:0:
                                        it did not help

                                        I have confirmed by packet capture that packets to ff02::12 are seen on both systems

                                        –------------
                                        Ok I figured out how to get it to a normal state (all master on primary and all backup on secondary).
                                        You need to reboot the backup firewall, and while its rebooting clear the firewall states on the primary.
                                        Carp failover works perfectly when its like this but there is still an issue.

                                        ANY configuration sync (manual/auto) from the primary to the backup causes the backup to become master on the two IPV6 carps.

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                                        • I
                                          IcePick
                                          last edited by

                                          To reiterate I did not have this issue until upgrading from 2.3.5 to 2.4.2-RELEASE-p1, or at least it seemed to have gotten worse.

                                          More testing:
                                          changed from x::1 (ie X:0:0:0:1)  to x:1:1:1:1
                                          on one of the CARP interfaces and the problem went away
                                          Did not change the real interface IP

                                          UPDATE: it worked for the first one, but broke both after I changed the second one.
                                          Why are these 2 different then the other 2?
                                          they connect to the same switch
                                          I found a difference, one set of addresses used all lower case for the hex in the address, the none working ones had capitals.
                                          I have changed all to lower and rebooted B unit and it came up all in backup, did not have to reset states on A firewall.
                                          I'm not saying this is the issue - but giving people ideas of what I found
                                          So in summary: using all lower case for hex and changed the addresses to ones that can not condense to ::

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                                          • A
                                            anthonysomerset
                                            last edited by

                                            Just want to add i appear to have hit this "bug" in one of our SG-4860 clusters

                                            our IPv6 addresses are in their shortened form with no leading zeros, had to reboot secondary to clear this out, will keep an eye on things

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