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    OpenVPN Static Ip, Routing Problem, NAT

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    OpenVPN
    openvpn routing rules open vpn nat
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    • V
      viragomann
      last edited by

      In the firewall rule the source port has to be "any" and the destination port must be "SMTP".

      1 Reply Last reply Reply Quote 0
      • ?
        A Former User
        last edited by

        I changed the firewall rule as you said, but it still doesnt work.

        1 Reply Last reply Reply Quote 0
        • DerelictD
          Derelict LAYER 8 Netgate @A Former User
          last edited by

          @schamschi

          "Don't pull routes" has to be checked in the client VPN settings.

          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 Former User
            last edited by A Former User

            Hello Derelict, if i check the box my port forwarding to my server isnt working anymore somehow, so i am not able to check if this helps.

            My Port Forwards will work if i check the box below: Don't add or remove routes automatically

            But also with this checked i got no success in my outbound/firewall problem.

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            • DerelictD
              Derelict LAYER 8 Netgate
              last edited by Derelict

              If you are port forwarding into a server over OpenVPN you have to:

              1. Assign an interface
              2. Make sure the rules on the OpenVPN tab DO NOT match the incoming traffic. They must match on the assigned interface tab to get the benefit of pf's reply-to.

              Since your OpenVPN should probably be treated as a WAN, I would delete all of the rules on the OpenVPN tab and only add rules on the assigned interface tab that pass the proper mail ports to the proper server. Passing any there is bad news.

              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
              • ?
                A Former User @Derelict
                last edited by A Former User

                @Derelict The Interface is assigned and also the Rules are in the Assigned Interface Tab and they work as long as i pull the vpn routes.

                It seems to be and problem dedicated to the routes of my firewall.

                Sadly i dont know further.

                Maybe someone can look directly into it, if this isnt to timetaking.

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                • DerelictD
                  Derelict LAYER 8 Netgate
                  last edited by

                  Is it also matching on the OpenVPN tab? If it matches on the OpenVPN tab the assigned interface tab will never be looked at and you will not get reply-to.

                  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 Former User
                    last edited by

                    On the OpenVPN Tab there are no rules only on the assigned interface tab.

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                    • DerelictD
                      Derelict LAYER 8 Netgate
                      last edited by

                      Then it should be working. Packet capture and see what's going on. Look at states and see what's going on.

                      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)

                      ? 2 Replies Last reply Reply Quote 0
                      • ?
                        A Former User @Derelict
                        last edited by

                        @Derelict
                        It seems they are talking when i try to send a mail.

                        Paket Capture:
                        00:41:11.073926 IP MAIL.localdomain.56830 > mx01.emig.gmx.net.smtp: tcp 0
                        00:41:11.074317 IP mx01.emig.gmx.net.smtp > MAIL.localdomain.56830: tcp 0
                        00:41:11.074527 IP MAIL.localdomain.34318 > mx00.emig.gmx.net.smtp: tcp 0
                        00:41:11.074865 IP mx00.emig.gmx.net.smtp > MAIL.localdomain.34318: tcp 0

                        States:
                        LAN tcp 192.168.1.105:56812 -> 212.227.17.5:25 TIME_WAIT:TIME_WAIT 1 / 1 60 B / 40 B
                        WAN tcp 192.168.188.22:8701 (192.168.1.105:56812) -> 212.227.17.5:25 TIME_WAIT:TIME_WAIT 1 / 1 60 B / 40 B

                        192.168.1.105 (Mail)
                        192.168.188.22 (Pfsense)

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                        • ?
                          A Former User @Derelict
                          last edited by

                          @Derelict i tried to set my default gateway at the routing tab to my vpn gateway and then the traffic seems to get routed threw the OpenVPN Tunnel.
                          Dont know if that helps.

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                          • DerelictD
                            Derelict LAYER 8 Netgate
                            last edited by

                            Are you talking about outbound connections or inbound? What, specifically is not working.

                            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
                            • ?
                              A Former User
                              last edited by

                              Outbound.

                              1 Reply Last reply Reply Quote 0
                              • ?
                                A Former User @Derelict
                                last edited by

                                @Derelict I think i got it to work. After i set the default gateway manually to the VPN and not automatic and saw that it worked,
                                i transfered the Flowing Rule i made for the outbound traffic to the Lan interface.
                                With the new knowledge of your help and the help of viragomann i changed some tiny things in the firewall rule.
                                After that i changed the default gateway back to automatic and know the outbound traffic takes the vpn and everything works.
                                I even rebootet the firewall to get lost of the states but everything still functions as it seems.

                                Thank you so very much for your dedication and your help.

                                1 Reply Last reply Reply Quote 1
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