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    After configuring WireGuard VPN I can no longer log in to my modem

    Scheduled Pinned Locked Moved General pfSense Questions
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    • sarrasineS
      sarrasine @Jarhead
      last edited by

      @Jarhead
      Hi, thanks for replying, I believe I am, but don't know how to make an exception for logging into the modem.

      1 Reply Last reply Reply Quote 0
      • sarrasineS
        sarrasine @Jarhead
        last edited by

        As much as I searched, I could find nothing related to my issue, it is as if this particular scenario has never been encountered!

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Yup that. Add a static route to the modem IP address via the WAN gateway in System > Routing > Static Routes.

          https://docs.netgate.com/pfsense/en/latest/routing/static.html#example-static-route

          Steve

          sarrasineS 2 Replies Last reply Reply Quote 1
          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            An alternative solution here would be to add a VIP on the WAN inside the modem subnet. Some modems require that if they don't have route back. You probably don't since it was working before you added the VPN. But just for reference:
            https://docs.netgate.com/pfsense/en/latest/recipes/modem-access.html

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            • stephenw10S stephenw10 moved this topic from Firewalling on
            • sarrasineS
              sarrasine @stephenw10
              last edited by sarrasine

              @stephenw10
              Like this?
              1000010523.png

              Unfortunately, I still can't connect.
              Not sure if additional firewall rules are needed and what they would look like. The Netgate documentation mentions them, but does not specify what they should be.

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              • sarrasineS
                sarrasine @stephenw10
                last edited by sarrasine

                @stephenw10
                I added a firewall LAN rule (no idea if it is correct):
                1000010525.png,
                but seems like there is a NAT issue as well.

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by stephenw10

                  If you have policy routing rule for the VPN on LAN you need to put that rule above it.

                  If it worked before you added the VPN it should work now without additional NAT rules or VIPs.

                  sarrasineS 2 Replies Last reply Reply Quote 1
                  • sarrasineS
                    sarrasine @stephenw10
                    last edited by sarrasine

                    @stephenw10
                    Thank you!
                    1000010524.png
                    Screenshot_20240422-194101.png
                    Now instead of timing out, the 192.168.3.1 gives me a "Connection refused" error.

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                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      192.168.3.1 is the modem management IP correct?

                      Before you added the VPN you were able to access it from the LAN by just entering that directly in a browser?

                      I can't see what mode you have the outbound NAT it. Normally in auto mode traffic for the modem IP would just be translated to the WAN address like any other traffic.

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                      • sarrasineS
                        sarrasine @stephenw10
                        last edited by

                        @stephenw10
                        Never mind, it worked!
                        But I needed these:
                        1000010529.png
                        Sorry, the picture didn't show it, but I am using manual NAT.
                        Funny thing, I can access 192.168.3.1 (yes, this is the modem's login page) only from one of two Chrome based browsers. But that is fine : )

                        I don't know how to thank you, Stephen, very much obliged!

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                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          Cool.

                          You almost certainly only need one of those rules. You wouldn't need static source ports for that connection.

                          If you removed those rules deliberately to prevent traffic 'leaking' past the VPN (a lot of VPN setup guides will have you do that) then you might want to tighten it to only apply to traffic with modem as destination.

                          sarrasineS 1 Reply Last reply Reply Quote 1
                          • sarrasineS
                            sarrasine @stephenw10
                            last edited by

                            This post is deleted!
                            stephenw10S 1 Reply Last reply Reply Quote 0
                            • stephenw10S
                              stephenw10 Netgate Administrator @sarrasine
                              last edited by

                              @sarrasine said in After configuring WireGuard VPN I can no longer log in to my modem:

                              Do I need any of the 500 (ISAKMP) rules?

                              You only need them if you are connecting an IPSec VPN through the firewall. So probably not. But it doesn't hurt to leave them either.

                              sarrasineS 1 Reply Last reply Reply Quote 1
                              • sarrasineS
                                sarrasine @stephenw10
                                last edited by

                                @stephenw10
                                Thank you, Stephen, appreciate it!

                                1 Reply Last reply Reply Quote 0
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