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    problem for routing specific traffic through gre ipsec tunnel

    Scheduled Pinned Locked Moved NAT
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    • K
      Konstanti @vistatech
      last edited by Konstanti

      @vistatech
      If you do not know and there is no way to configure a static route there , then return outbound NAT

      1. 192.168.10.4 can ping 192.168.251.193 ?
        Show NAT outbound settings
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      • V
        vistatech
        last edited by

        1- no it can't ping x.x.x.193. should i route the requests for that??

        0_1548156687710_Capture3.PNG

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        • K
          Konstanti @vistatech
          last edited by

          @vistatech
          Show packet capture on the lan interface

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          • V
            vistatech
            last edited by

            it is similar to pinging 10.1.1.150 just request and no reply

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            • K
              Konstanti @vistatech
              last edited by

              @vistatech
              here you can see that the answer comes to the gre interface
              and on the lan interface the answer comes ?

              0_1548158705927_20f3f461-82b6-4c82-83fc-4c3b423de55e-image.png

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              • V
                vistatech
                last edited by vistatech

                no. it does not come to lan interface. here is what i assumed:
                that capture is when i ping 10.1.1.150 (remote GRE ip) from my windows box (192.168.10.4) packet capture on lan shows a bunch of request. but packet capture on gre shows that requests from 192.168.251.194 (my side of GRE) goes to 10.1.1.150 and reply comes from 10.1.1.150 to x.x.x.194 and from there it does not come to my windows box.

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                • K
                  Konstanti @vistatech
                  last edited by

                  @vistatech
                  Are there any Floating Rules ?

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                  • V
                    vistatech
                    last edited by vistatech

                    yes there is one, for GRE interface, with source and destination set to any.
                    since the requests go through 192.168.251.194, it seems like routing is being done, but NAT is not.

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                    • V
                      vistatech
                      last edited by

                      should i be able to ping my local windows host (192.168.10.4) from my GRE interface?? if yes i can't.

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                      • K
                        Konstanti @vistatech
                        last edited by

                        @vistatech
                        Show this rule

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                        • V
                          vistatech
                          last edited by

                          which rule?

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                          • K
                            Konstanti @vistatech
                            last edited by

                            @vistatech said in problem for routing specific traffic through gre ipsec tunnel:

                            which rule

                            Floating rule for GRE interface

                            And still such question
                            GRE over ipsec
                            ipsec (phase 2) in transport mode ?
                            is this correct ?
                            It's just that Pfsense doesn't always work correctly with GRE over ipsec.

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                            • V
                              vistatech
                              last edited by

                              0_1548223589360_Capture.PNG

                              yes, ipsec phase 2 is in transport mode.

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                              • K
                                Konstanti @vistatech
                                last edited by Konstanti

                                @vistatech
                                Hey
                                As I said , PF does not always work correctly with GRE over IPSEC.
                                Try to do so

                                1. disable GRE interface
                                2. reboot
                                3. Verify that THE IPSec tunnel is established
                                4. enable the GRE interface
                                  5.verify
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