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    Assign 3rd interface to Pfsense

    Scheduled Pinned Locked Moved General pfSense Questions
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      Ok that should be fine then.

      So set a continuous ping running to 4.2.2.2 then check the state table in Diag > States. Filter by 4.2.2.2.

      You should see a state on the new interface and a state with NAT on the WAN interface.

      Steve

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        techman2005 @stephenw10
        last edited by

        @stephenw10

        Thanks Steve for your reply, I checked the states and filtered by 4.2.2.1, unfortunately it showed nothing. The firewall rule looks as below.

        snip_20190420112118.png

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        • K
          Konstanti @techman2005
          last edited by Konstanti

          @techman2005
          Outbound NAT is configured for 10.1.40.0/24 ????

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            techman2005 @Konstanti
            last edited by

            @Konstanti

            it appears to be there. Is there another good way to look at the logs? NAT is auto generated.

            snip_20190420125916.png

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              Konstanti @techman2005
              last edited by Konstanti

              @techman2005
              Try to run Packet Capture or tcpdump on the wan interface to see what's going on
              interface WAN
              Protocol ICMP
              Host 4.2.2.2

              Ideally , you should see this result

              21:09:16.501092 IP XXX.XXX.1.96 > 4.2.2.2: ICMP echo request, id 25266, seq 0, length 64
              21:09:16.556329 IP 4.2.2.2 > XXX.XXX.1.96: ICMP echo reply, id 25266, seq 0, length 64

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                techman2005 @Konstanti
                last edited by

                @Konstanti

                It worked for the new nterface but it was blank for wide are network

                snip_20190420132304.png

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                  Konstanti @techman2005
                  last edited by Konstanti

                  @techman2005

                  If this is the wan interface, you can see that nat outbound does not work correctly
                  Try to use Manual Outbound NAT

                  40c80d49-87b4-4a28-b970-e081a2a6cd70-image.png

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                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    If you're seeing packets come in but no states generated either on DEVICENET or WAN (you should see both) then something is blocking that traffic. Do you see it blocked in the firewall logs? Which rule is blocking it?
                    If not you may have something set to block without logging like maybe pfBlocker or Snort.

                    Steve

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                      techman2005
                      last edited by

                      I was able to get packet captures from both WAN and D net. where do I go from here? all your help is greatly appreciated.

                      snip_20190420170950.png

                      snip_20190420170949.png

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                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        Are you using 8.8.8.8 as the monitoring IP for the WAN? Or pinging it from anywhere else?

                        Because those pings on DEVICENET are at ~5s internals but on WAN are at 1s intervals. I don't think that's the same traffic.

                        You were seeing no open states and they will be there is traffic is being passed.

                        Check the firewall logs.

                        Do you have any packages installed?

                        Steve

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                          techman2005 @stephenw10
                          last edited by

                          @stephenw10

                          I had 2 separate computers. I just verified the traffic again.

                          1e1c1aa6-27a5-4bfd-8194-473855f26a1f-image.png

                          08fde7fa-4016-4768-94f7-d5d798433279-image.png

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                          • stephenw10S
                            stephenw10 Netgate Administrator
                            last edited by

                            Still 1s intervals on WAN and 5 internally. Use a different IP that isn't in use anywhere else.

                            Check the firewall logs.

                            Do you have any packages installed?

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                              techman2005 @stephenw10
                              last edited by

                              @stephenw10

                              That interface doesn't even appear in the firewall logs.
                              bd76757f-cb63-44fd-b818-5116224d6edc-image.png

                              Yes I have a few packages installed screenshot attached.

                              8f86d2e1-4b70-4308-a680-3c72b4e5d336-image.png

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                              • stephenw10S
                                stephenw10 Netgate Administrator
                                last edited by

                                Ok, none of those packages should be an issue.

                                Did you filter the firewall logs by the IP you were trying to ping? Or by the interface you were pinging from?
                                That screenshot shows 21s of logs so they moght just not be shown there.

                                But, again, try pinging by some other IP that is not used anywhere else. Leave the ping running then check the state table and filter by the target IP. Leave the interfaces set to 'all'. You should see states on both the internal interface and WAN. You can verify that by testing from a working interface so you know what it should look like.

                                Steve

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                                  Konstanti @techman2005
                                  last edited by Konstanti

                                  @techman2005
                                  Hey
                                  Show the output of the command ifconfig

                                  or
                                  Status/interfaces (Devicenet)

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                                    techman2005
                                    last edited by

                                    So I did a ping to 8.8.4.4 from a device on d net and received the following for d net interface and didn't receive anything for wan.

                                    c1e5b240-ca29-41dd-8aa0-415fb9f57e0c-image.png

                                    The output for d net interface

                                    5354070d-5c85-4030-bd3a-2b7325cefdcc-image.png

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                                      Konstanti @techman2005
                                      last edited by Konstanti

                                      @techman2005 said in Assign 3rd interface to Pfsense:

                                      Do you have any floating rules ?

                                      And what is Openvpn interface ?
                                      Is it a server or a client ?
                                      Show routing table

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                                      • T
                                        techman2005
                                        last edited by

                                        No floating rules

                                        Vpn server

                                        30820EA2-18E4-4917-BE51-F0CE7778177D.png

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                                        • stephenw10S
                                          stephenw10 Netgate Administrator
                                          last edited by

                                          If you are seeing no states on any interface and no packets leaving WAN that traffic is being blocked.

                                          Run the ping again and check the firewall logs. Filter by destination IP 8.8.4.4. If you see logged blocks click the red X to see what rule is blocking it.

                                          Are you seeing any alerts reported on the dashboard?

                                          Steve

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                                            techman2005
                                            last edited by

                                            There are no alerts on the dashboard . when I do a packet capture for d net it works fine if i do the same way for wan I get nothing.

                                            Also When I sort firewall logs for destination IP while running a continuous ping I get nothing.

                                            Capture.PNG

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