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    pfSense HA LAN Interfaces Only

    Scheduled Pinned Locked Moved HA/CARP/VIPs
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    • C
      CloudNode @viragomann
      last edited by

      @viragomann I ran a packet cap again and i am seeing those monitoring requests come in as well:

      11:14:31.073869 IP 8.8.8.8.853 > 192.168.2.81.17018: tcp 0
      11:14:31.073887 IP 76.64.x.x.11762 > 8.8.8.8.853: tcp 0

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        CloudNode @viragomann
        last edited by

        @viragomann When i remove the monitoring ip from the GW; yes it puts the master LAN IP in there and yes it shows Green and Online but no internet.

        Ah i really hoped this would have worked out; was such a nice idea to have.

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          viragomann @CloudNode
          last edited by

          @iptvcld said in pfSense HA LAN Interfaces Only:

          I ran a packet cap again and i am seeing those monitoring requests come in as well:
          11:14:31.073869 IP 8.8.8.8.853 > 192.168.2.81.17018: tcp 0
          11:14:31.073887 IP 76.64.x.x.11762 > 8.8.8.8.853: tcp 0

          So you're using 8.8.8.8 for DNS resolution as well.
          Possibly that's an issue when you've stated the WAN gateway in System > General Setup.
          However, when using this IP for gateway monitoring, pfSense will automatically add a static route and point it to the respective gateway. So there might be a conflict.

          As mentioned above, you can use any other public IP for gateway monitoring which is responding to pings. It might be a good idea, to use another IP.

          Also you should have a check at System > Advanced > Miscellaneous > State Killing on Gateway Failure.

          For further testing you can set the WAN gateway as down manually on the backup.

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            CloudNode @viragomann
            last edited by

            @viragomann Correct; i am using 8.8.8.8 and 8.8.4.4 as DNS Res via system > gateway.

            I have now changed my GW monitoring IP to 1.1.1.1 on the secondary pf. Also on the secondary pf i have placed a CHECK under System > Advanced > Miscellaneous > State Killing on Gateway Failure.

            When i try to ping 8.8.8.8 from the secondary; i get this timeout

            PING 8.8.8.8 (8.8.8.8): 56 data bytes
92 bytes from 127.0.0.1: Time to live exceeded
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 0054 263f   0 0000  01  01 0000 127.0.0.1  8.8.8.8 

92 bytes from 127.0.0.1: Time to live exceeded
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 0054 b74f   0 0000  01  01 0000 127.0.0.1  8.8.8.8 

92 bytes from 127.0.0.1: Time to live exceeded
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 0054 66ba   0 0000  01  01 0000 127.0.0.1  8.8.8.8 


--- 8.8.8.8 ping statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss

            I have marked my PPPOE WAN as down on the 2nd pf as well.
            This is so bizarre..
            I also have just an open rule for LAN
            6de4178c-6b2a-4d7d-ad19-2afa3c0c36dc-image.png

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              viragomann @CloudNode
              last edited by

              @iptvcld said in pfSense HA LAN Interfaces Only:

              When i try to ping 8.8.8.8 from the secondary; i get this timeout

              You cannot use 8.8.8.8 for troubleshooting, since you direct it to WAN gateway.
              However, for getting the DNS resolution work on the secondary when the WAN cable is connected to the primary, you should set the gateway to "none" for all DNS servers in System > General Setup.

              I have now changed my GW monitoring IP to 1.1.1.1 on the secondary pf.

              So try to ping 1.1.1.1 while taking a capture on the LAN interface.

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                CloudNode @viragomann
                last edited by

                @viragomann My master pf DNS settings like like this
                c34d0b73-4620-42e5-a695-24d1dc4b5a81-image.png

                and secondary pf is the same
                f3bcfe38-b3c2-43f3-9bcc-59509a4ac5dd-image.png

                When i ping 1.1.1.1 in seconday the packet capture just gave this

                12:57:15.477198 IP 192.168.2.81 > 1.1.1.1: ICMP echo request, id 18433, seq 797, length 9
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                  viragomann @CloudNode
                  last edited by

                  @iptvcld said in pfSense HA LAN Interfaces Only:

                  When i ping 1.1.1.1 in seconday the packet capture just gave this
                  12:57:15.477198 IP 192.168.2.81 > 1.1.1.1: ICMP echo request, id 18433, seq 797, length 9

                  You should see the same on the masters LAN. Check that out, please.

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                    CloudNode @viragomann
                    last edited by

                    @viragomann thats correct; i just ran a packet cap on master LAN and then sent a 1.1.1.1 ping from the secondary pf

                    13:05:44.735976 IP 192.168.2.81 > 1.1.1.1: ICMP echo request, id 18433, seq 1785, length 9
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                      viragomann @CloudNode
                      last edited by

                      @iptvcld
                      Well, so 1.1.1.1 is routed to the masters LAN address.
                      Now, if you take a capture on the masters WAN you should also see the ICMP packets to 1.1.1.1, but coming from the WAN IP.

                      If that's not the case, either the firewall rule or the outbound NAT on the master might failing anyhow.

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                        CloudNode @viragomann
                        last edited by

                        @viragomann Ran a packet cap on master and i see this request 3 times

                        13:10:40.370864 IP 192.168.2.81 > 1.1.1.1: ICMP echo request, id 18433, seq 2360, length 9

                        seems to be coming from the secondary pf LAN IP still and not the WAN IP

                        Outbound NAT on master is this:
                        525a045c-3692-4aaa-a82a-e04d3aa486ca-image.png

                        And LAN Rules
                        a368e097-3a10-4ad5-9bd4-8c50a2666839-image.png

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                          CloudNode @viragomann
                          last edited by

                          @viragomann Ran it again and i see this

                          13:17:05.527815 IP 76.64.x.x > 1.1.1.1: ICMP echo request, id 55322, seq 0, length 64
13:17:05.542715 IP 1.1.1.1 > 76.64.x.x: ICMP echo reply, id 55322, seq 0, length 64

                          then

                          13:17:05.562166 IP 192.168.2.81 > 1.1.1.1: ICMP echo request, id 34782, seq 78, length 9

                          PING 1.1.1.1 (1.1.1.1): 56 data bytes
                          64 bytes from 1.1.1.1: icmp_seq=0 ttl=55 time=15.187 ms

                          --- 1.1.1.1 ping statistics ---
                          3 packets transmitted, 1 packets received, 66.7% packet loss
                          round-trip min/avg/max/stddev = 15.187/15.187/15.187/0.000 ms

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                            CloudNode @viragomann
                            last edited by

                            @viragomann Does this need to be unchecked under my WAN interface?
                            Block private networks and loopback addresses

                            fc8b8c33-e5c7-4253-ac68-050b04b1b2a9-image.png

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                              viragomann @CloudNode
                              last edited by

                              @iptvcld said in pfSense HA LAN Interfaces Only:

                              Ran it again and i see this
                              13:17:05.527815 IP 76.64.x.x > 1.1.1.1: ICMP echo request, id 55322, seq 0, length 64
                              13:17:05.542715 IP 1.1.1.1 > 76.64.x.x: ICMP echo reply, id 55322, seq 0, length 64

                              then
                              13:17:05.562166 IP 192.168.2.81 > 1.1.1.1: ICMP echo request, id 34782, seq 78, length 9

                              PING 1.1.1.1 (1.1.1.1): 56 data bytes

                              Strange!

                              Check the masters state table and filter for 1.1.1.1 after pinging from backup.

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                                viragomann @CloudNode
                                last edited by

                                @iptvcld said in pfSense HA LAN Interfaces Only:

                                @viragomann Does this need to be unchecked under my WAN interface?
                                Block private networks and loopback addresses

                                fc8b8c33-e5c7-4253-ac68-050b04b1b2a9-image.png

                                No, this is only for incoming packets. There is no need to allow private addresses on WAN.

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                                  CloudNode @viragomann
                                  last edited by

                                  This post is deleted!
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                                    CloudNode @viragomann
                                    last edited by

                                    @viragomann This is the state table after pinging from 2nd
                                    428da5d7-7b48-472e-b40e-1b54110340db-image.png

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                                      CloudNode @viragomann
                                      last edited by CloudNode

                                      @viragomann When try to ping 1.0.0.1 from 2nd; i get all fails

                                      PING 1.0.0.1 (1.0.0.1): 56 data bytes
92 bytes from 127.0.0.1: Time to live exceeded
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 0054 ee77   0 0000  01  01 0000 127.0.0.1  1.0.0.1 

92 bytes from 127.0.0.1: Time to live exceeded
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 0054 4453   0 0000  01  01 0000 127.0.0.1  1.0.0.1 

92 bytes from 127.0.0.1: Time to live exceeded
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 0054 071e   0 0000  01  01 0000 127.0.0.1  1.0.0.1 


--- 1.0.0.1 ping statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss

                                      And when i run this ping while doing packet cap on master LAN; i dont see the entries come over

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                                        viragomann @CloudNode
                                        last edited by

                                        @iptvcld said in pfSense HA LAN Interfaces Only:

                                        This is the state table after pinging from 2nd

                                        The last two lines look well for only one ping packet. One state entry for LAN and one for WAN.
                                        But the other lines are showing faults at all. The packets column shows the packets for each direction (request, respond). So it shows many requests, but few responds.

                                        Not clear, what's going wrong here, now.
                                        Maybe there are some hints in the system log?

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                                          viragomann @CloudNode
                                          last edited by

                                          @iptvcld said in pfSense HA LAN Interfaces Only:

                                          When try to ping 1.0.0.1 from 2nd; i get all fails

                                          This IP might be routed out to WAN, since there is no special route for it. But WAN is not connected, hence it will fail.

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                                            CloudNode @viragomann
                                            last edited by

                                            @viragomann This makes sense..

                                            Its just so odd that 1 get 1/3 ping request to pass when doing a ping from 2nd pf. It should almost be all or none..

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