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    Wireguard is not routing any traffic

    Scheduled Pinned Locked Moved WireGuard
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    • ?
      A Former User @A Former User
      last edited by

      @thisisme according to the pfsense documentation I have to add a firewall to the Wireguard tab that pass any traffic (any destination, any source) but wouldn't this mean that all incoming traffic from the Internet can access my lan? Including unwanted malicious connections?

      G 1 Reply Last reply Reply Quote 0
      • G
        gabacho4 Rebel Alliance @A Former User
        last edited by

        @thisisme no that rule is for your network through the interface to the world. You gotta ask yourself, would Netgate really provide configuration guidance that would hurt its customers and reputation as a security-minded company? You’ll never pass any traffic if you don’t have an allow rule.

        ? 1 Reply Last reply Reply Quote 0
        • G
          gabacho4 Rebel Alliance
          last edited by gabacho4

          If it makes you feel better you could specify your lan subnet as the originator. The config guides are meant to cover the basics. You then can tighten things up to your heart’s content with the understanding that mucking around without understanding what you’re doing can result in bad things.

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          • Bob.DigB
            Bob.Dig LAYER 8 @A Former User
            last edited by

            @thisisme said in Wireguard is not routing any traffic:

            I have set up a Wireguard connection to Surfshark in pfsense

            How?

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            • ?
              A Former User
              last edited by

              That's my setup
              4.png 3.png 2.png 1.png

              and this is the config provided by surfshark

              [Interface]
              Address = 10.14.0.2/16
              PrivateKey = <insert_your_private_key_here>
              DNS = 162.252.172.57, 149.154.159.92
              [Peer]
              PublicKey = fJD***********
              AllowedIPs = 0.0.0.0/0
              Endpoint = de-fra.prod.surfshark.com:51820
              

              I also added a Firewall-Rule to my LAN interface targeting the Gateway NORDVPN1_VPNV4 which is assigned to the interface NORDVPN1 (don't mind the name, I moved from nordvpn last week)

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

                I wonder if it's correct to use '10.14.0.2' as the ip address of my interface, but the pfsense documentation says I should put an IP there and it's the only one I have. (DHCP is not working)

                I can ping server on the internet from my own clients, but higher traffic is not passing

                Bob.DigB 1 Reply Last reply Reply Quote 0
                • Bob.DigB
                  Bob.Dig LAYER 8 @A Former User
                  last edited by Bob.Dig

                  @thisisme I will be looking into this for myself shortly. 😉

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                  • ?
                    A Former User @gabacho4
                    last edited by

                    @gabacho4 said in Wireguard is not routing any traffic:

                    no that rule is for your network through the interface to the world

                    I'm still confused. I thought that rules are evaluated when they enter the interface. Traffic from LAN should not enter the Wireguard interface, but traffic from outside. Right?

                    Bob.DigB 1 Reply Last reply Reply Quote 0
                    • Bob.DigB
                      Bob.Dig LAYER 8 @A Former User
                      last edited by Bob.Dig

                      @thisisme said in Wireguard is not routing any traffic:

                      Right?

                      Right, don't put any rule on that interface.

                      ? 1 Reply Last reply Reply Quote 0
                      • ?
                        A Former User @Bob.Dig
                        last edited by

                        @bob-dig I found the problem I had to set the MSS on the wireguard interface, but I remain with another problem:

                        I can't route DNS through wireguard
                        If I select the the old OpenVPN interface the DNS resolver is working, but with the new Wireguard interface I can't resolve anything. Any idea? DNS is 9.9.9.9

                        Bob.DigB 1 Reply Last reply Reply Quote 1
                        • Bob.DigB
                          Bob.Dig LAYER 8 @A Former User
                          last edited by

                          @thisisme I am trying right now and for me it is also not working. It is new for them too, maybe they have problems on their side.
                          Will report here if this changes for me.

                          ? 1 Reply Last reply Reply Quote 0
                          • ?
                            A Former User @Bob.Dig
                            last edited by

                            Just to point it out: I don't had to add firewall rules to the Wireguard tab. This advice is WRONG and DANGEROUS

                            Bob.DigB 1 Reply Last reply Reply Quote 0
                            • Bob.DigB
                              Bob.Dig LAYER 8 @A Former User
                              last edited by Bob.Dig

                              @thisisme Ping and DNS seem to be working for me. I didn't tested DNS within pfSense but just in a Windows VM. But I can't surf anything.

                              ? 1 Reply Last reply Reply Quote 0
                              • ?
                                A Former User @Bob.Dig
                                last edited by

                                @bob-dig have you set the MSS on the Wireguard interface?

                                Bob.DigB 1 Reply Last reply Reply Quote 1
                                • Bob.DigB
                                  Bob.Dig LAYER 8 @A Former User
                                  last edited by Bob.Dig

                                  @thisisme No, I don't think it is a must anyways.

                                  ? 1 Reply Last reply Reply Quote 0
                                  • ?
                                    A Former User @Bob.Dig
                                    last edited by

                                    @bob-dig for me it don't work without it

                                    Bob.DigB 1 Reply Last reply Reply Quote 1
                                    • Bob.DigB
                                      Bob.Dig LAYER 8 @A Former User
                                      last edited by

                                      @thisisme So which size should it be?

                                      ? 1 Reply Last reply Reply Quote 0
                                      • ?
                                        A Former User @Bob.Dig
                                        last edited by

                                        @bob-dig 1412 seems to work. Maybe you have to play a bit

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

                                          Solved my DNS problem. Looks like wireguard is not adding any routes. I had to add a manual one for the DNS-Address and the gateway

                                          Bob.DigB 1 Reply Last reply Reply Quote 0
                                          • Bob.DigB
                                            Bob.Dig LAYER 8
                                            last edited by Bob.Dig

                                            Got it working too, thanks for the MTU hint!!
                                            I went with 1420. Without it, it wasn't working.

                                            I didn't need any routes but my setup is different. Also no manual outbound NAT needed, see below.

                                            For IP I went with /32 and changed the IP for the second tunnel myself.
                                            ss.jpg

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