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    OpenVPN TCP - No traffic

    Scheduled Pinned Locked Moved OpenVPN
    openvpn problemgremlins
    15 Posts 3 Posters 2.1k Views
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    • C
      Crlaozwyn
      last edited by

      Bump - would still appreciate help with this!

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      • V
        viragomann
        last edited by

        The outbound NAT rules you posted in the other thread won't work for upstream traffic. You have to change the interface to "WAN" and the sources have to be your VPN tunnel network. Don't know if 192.168.13.0/24 is you tunnel network.

        Additionally, have you already removed 'push "redirect-gateway def1"' from custom options?

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        • C
          Crlaozwyn
          last edited by

          Thanks @viragomann. I did get the NAT rules figured out (later in the thread, I think). They've been on WAN with the VPN subnet (yes, the .13. is the VPN).

          There are currently no custom options set. I do have "Force all client-generated IPv4 traffic through the tunnel" checked.

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          • V
            viragomann
            last edited by

            Are you able to access your local device from the VPN client?

            Please post the routing table of the client device.

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            • C
              Crlaozwyn
              last edited by

              Argh! It started working again without me making a single change from yesterday.

              Is the routing table part of the logs? If so, I think the only relevant entry would be this:
              2019-37-22 15:37:02 NIP: adding (included) IPv4 route 192.168.13.0/24

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              • V
                viragomann
                last edited by

                No, the routing table is a list containing all route of an operating system. It depends on the OS how to show it.

                In Windows and some Linux "netstat -r" may work.
                In other Linux "route" or "ip route".
                In MacOS "netstat -nr".

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                • johnpozJ
                  johnpoz LAYER 8 Global Moderator
                  last edited by

                  route print will also work on windows.

                  An intelligent man is sometimes forced to be drunk to spend time with his fools
                  If you get confused: Listen to the Music Play
                  Please don't Chat/PM me for help, unless mod related
                  SG-4860 24.11 | Lab VMs 2.8, 24.11

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                  • C
                    Crlaozwyn
                    last edited by

                    Gotcha, thank you both for the clarification. Unfortunately the client is an iPhone and, based on a bit of Googling, there isn't really a way to access the IP routing table. With some help, I did discover a setup issue on my part though:

                    Both UDP and TCP OpenVPN servers were using the same subnet. I've changed the subnet for UDP to be unique and non-overlapping. It hasn't fixed it yet, but that should hopefully prevent TCP from breaking at least...

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by johnpoz

                      Dude is that you on reddit ;) heheeh - that is me over on reddit

                      You should be able to see your route table via Hurricane electric app.

                      Let me double check that.

                      Yup the HE tools shows that
                      iosroutes.jpg

                      You can get it here
                      https://networktools.he.net/

                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                      If you get confused: Listen to the Music Play
                      Please don't Chat/PM me for help, unless mod related
                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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                      • C
                        Crlaozwyn
                        last edited by

                        Bahahah, yeah that's me. I didn't get a response here after a few days so I figured I'd put another line in the water. Thanks again for your help.

                        HE.NET app definitely has a lot of data. Do you need all interfaces? There's around a hundred rows

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          You just need to find your vpn interface, once you connect.

                          You can use it to do a traceroute as well.. Can you ping your lan side interface of pfsense?

                          Here pinging my lan IP of pfsense using tcp from ios
                          44084.jpg

                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                          If you get confused: Listen to the Music Play
                          Please don't Chat/PM me for help, unless mod related
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

                          1 Reply Last reply Reply Quote 0
                          • C
                            Crlaozwyn
                            last edited by Crlaozwyn

                            Total fail screenshot attempt - deleted

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                            • johnpozJ
                              johnpoz LAYER 8 Global Moderator
                              last edited by johnpoz

                              Well that doesn't look like you have any routes. But I specific route vs default route.. Let me change mine and reconnect

                              Even when I set to default, I still see routes for the tunnel network..

                              Are you even connected?

                              An intelligent man is sometimes forced to be drunk to spend time with his fools
                              If you get confused: Listen to the Music Play
                              Please don't Chat/PM me for help, unless mod related
                              SG-4860 24.11 | Lab VMs 2.8, 24.11

                              1 Reply Last reply Reply Quote 0
                              • C
                                Crlaozwyn
                                last edited by

                                So uh... I totally disabled the VPN in order to be able to actually upload anything. Screenshot fail! Should be a little more enlightening here...
                                IMG_2374.jpg

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