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Port Forward does not work..

Firewalling
help nat nat rules firewall firewall rules
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  • R
    root1ng LAYER 8 @viragomann
    last edited by Nov 5, 2023, 12:09 PM

    @viragomann said in Port Forward does not work..:

    And what's the recent issue you're on? Accessing it from outside or from inside your network?

    For inside access you should rather use its local IP and a DNS host override for the public FQDN.

    I can't access it from the outside, only from the inside with a private local IP, not the public one.

    V 1 Reply Last reply Nov 5, 2023, 12:15 PM Reply Quote 1
    • V
      viragomann @root1ng
      last edited by Nov 5, 2023, 12:15 PM

      @root1ng
      So I assume, you're not sure, if the desired traffic is even forwarded to your public IP. It could be blocked by the ISP.
      BTW, do you even have a real public IP? And if, is it assigned to pfSense WAN interface (ONT in bridge mode)?

      If yes, sniff the WAN traffic to ensure, that the traffic is even forward to pfSense.
      Diagnostic > Packet Capture
      Select the WAN interface
      In the "untagged filter" section at port number select "all off" and enter "9987|30033". This capture both.
      Hit start and try to access your server from the internet.

      1 Reply Last reply Reply Quote 1
      • J
        johnpoz LAYER 8 Global Moderator @root1ng
        last edited by Nov 5, 2023, 12:16 PM

        @root1ng I don't see any hits on either of those rules that allow for your port forwards to port 9987 and 30033

        First step in troubleshooting a port forward or any wan side firewall rule is validate the traffic actually gets to pfsense, go to like can you see me . org and send some traffic. Be it you allow it or forward it or not.. You should see that traffic in your packet capture.

        For example just sent some traffic to port 9987 like your forward, as you can see from packet capture on my wan pfsense actually sees this traffic.

        login-to-view

        If pfsense never sees the traffic no amount of firewall rules or forwards would ever work.

        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 2.7.2, 24.11

        B R 2 Replies Last reply Nov 5, 2023, 12:24 PM Reply Quote 0
        • B
          Bob.Dig LAYER 8 @johnpoz
          last edited by Nov 5, 2023, 12:24 PM

          @johnpoz said in Port Forward does not work..:

          If pfsense never sees the traffic no amount of firewall rules or forwards would ever work.

          For him it is UDP but right. For testing do something with TCP.

          B 1 Reply Last reply Nov 5, 2023, 12:30 PM Reply Quote 0
          • N
            NogBadTheBad @Bob.Dig
            last edited by Nov 5, 2023, 12:27 PM

            @Bob-Dig Oops forgot about the order πŸ‘

            Andy

            1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

            1 Reply Last reply Reply Quote 0
            • B
              Bob.Dig LAYER 8 @Bob.Dig
              last edited by Bob.Dig Nov 5, 2023, 12:31 PM Nov 5, 2023, 12:30 PM

              @Bob-Dig said in Port Forward does not work..:

              For testing do something with TCP.

              Because it is more easy I have to add. πŸ˜‰

              For instance, while it is showing as stealth because there is no service running on that port, I still see that the rule was triggered.

              login-to-view

              1 Reply Last reply Reply Quote 0
              • R
                root1ng LAYER 8 @johnpoz
                last edited by Nov 5, 2023, 12:30 PM

                @johnpoz said in Port Forward does not work..:

                @root1ng I don't see any hits on either of those rules that allow for your port forwards to port 9987 and 30033

                First step in troubleshooting a port forward or any wan side firewall rule is validate the traffic actually gets to pfsense, go to like can you see me . org and send some traffic. Be it you allow it or forward it or not.. You should see that traffic in your packet capture.

                For example just sent some traffic to port 9987 like your forward, as you can see from packet capture on my wan pfsense actually sees this traffic.

                If pfsense never sees the traffic no amount of firewall rules or forwards would ever work.

                30033 TCP seems to work, 9987 UDP doesn't and I don't understand why, all ports are open from ISP

                login-to-view
                login-to-view
                login-to-view

                V B 2 Replies Last reply Nov 5, 2023, 12:32 PM Reply Quote 1
                • V
                  viragomann @root1ng
                  last edited by Nov 5, 2023, 12:32 PM

                  @root1ng
                  The port checker might only be able to do TCP checks.

                  J 1 Reply Last reply Nov 5, 2023, 12:59 PM Reply Quote 1
                  • B
                    Bob.Dig LAYER 8 @root1ng
                    last edited by Nov 5, 2023, 12:33 PM

                    @root1ng said in Port Forward does not work..:

                    30033 TCP seems to work,

                    That does look good.

                    R 1 Reply Last reply Nov 5, 2023, 12:34 PM Reply Quote 0
                    • R
                      root1ng LAYER 8 @Bob.Dig
                      last edited by Nov 5, 2023, 12:34 PM

                      @Bob-Dig said in Port Forward does not work..:

                      That does look good

                      Yes, but the main one is 9987 .. and for now it still doesn't work.

                      B V 2 Replies Last reply Nov 5, 2023, 12:37 PM Reply Quote 1
                      • B
                        Bob.Dig LAYER 8 @root1ng
                        last edited by Bob.Dig Nov 5, 2023, 12:37 PM Nov 5, 2023, 12:37 PM

                        @root1ng said in Port Forward does not work..:

                        Yes, but the main one is 9987 .. and for now it still doesn't work.

                        Maybe your proxmox Firewall is blocking UDP?

                        R 1 Reply Last reply Nov 5, 2023, 12:38 PM Reply Quote 0
                        • R
                          root1ng LAYER 8 @Bob.Dig
                          last edited by Nov 5, 2023, 12:38 PM

                          @Bob-Dig said in Port Forward does not work..:

                          Maybe your proxmox Firewall is blocking UDP?

                          All firewalls are disabled.. tell me where to check and I'll come back

                          1 Reply Last reply Reply Quote 0
                          • V
                            viragomann @root1ng
                            last edited by Nov 5, 2023, 12:42 PM

                            @root1ng said in Port Forward does not work..:

                            Yes, but the main one is 9987 .. and for now it still doesn't work.

                            As long as there is no service listening on this port at TCP, the access won't succeed naturally.
                            Your backend is listening at UDP 9987 and UDP probably cannot be probed with the port checker.

                            R 1 Reply Last reply Nov 5, 2023, 12:44 PM Reply Quote 0
                            • R
                              root1ng LAYER 8 @viragomann
                              last edited by Nov 5, 2023, 12:44 PM

                              @viragomann said in Port Forward does not work..:

                              As long as there is no service listening on this port at TCP, the access won't succeed naturally.
                              Your backend is listening at UDP 9987 and UDP probably cannot be probed with the port checker.

                              I changed from UDP to TCP and I still can't access it with the port checker, I still get a timeout.

                              V 1 Reply Last reply Nov 5, 2023, 12:48 PM Reply Quote 0
                              • V
                                viragomann @root1ng
                                last edited by Nov 5, 2023, 12:48 PM

                                @root1ng
                                On the backend? And does it work from inside with TCP?

                                R 1 Reply Last reply Nov 5, 2023, 12:51 PM Reply Quote 0
                                • R
                                  root1ng LAYER 8 @viragomann
                                  last edited by Nov 5, 2023, 12:51 PM

                                  @viragomann said in Port Forward does not work..:

                                  @root1ng
                                  On the backend? And does it work from inside with TCP?

                                  Not working ..

                                  V 1 Reply Last reply Nov 5, 2023, 12:54 PM Reply Quote 0
                                  • V
                                    viragomann @root1ng
                                    last edited by Nov 5, 2023, 12:54 PM

                                    @root1ng
                                    So I donβ€œt expect it to work from outside.

                                    1 Reply Last reply Reply Quote 0
                                    • J
                                      johnpoz LAYER 8 Global Moderator @viragomann
                                      last edited by johnpoz Nov 5, 2023, 1:00 PM Nov 5, 2023, 12:59 PM

                                      @viragomann said in Port Forward does not work..:

                                      The port checker might only be able to do TCP checks.

                                      Yeah can you see me can only do TCP.. you would have to use something that can send udp..

                                      Here is one..

                                      https://www.ipvoid.com/udp-port-scan/

                                      login-to-view

                                      But if when testing and tcp gets there via packet capture - its a good sign that udp is open as well. But yeah its never bad idea to actually validate

                                      My bad for not noticing 9987 was setup for udp..

                                      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 2.7.2, 24.11

                                      R 2 Replies Last reply Nov 5, 2023, 1:06 PM Reply Quote 0
                                      • R
                                        root1ng LAYER 8 @johnpoz
                                        last edited by Nov 5, 2023, 1:06 PM

                                        @johnpoz said in Port Forward does not work..:

                                        @viragomann said in Port Forward does not work..:

                                        The port checker might only be able to do TCP checks.

                                        Yeah can you see me can only do TCP.. you would have to use something that can send udp..

                                        Here is one..

                                        https://www.ipvoid.com/udp-port-scan/

                                        login-to-view

                                        But if when testing and tcp gets there via packet capture - its a good sign that udp is open as well. But yeah its never bad idea to actually validate

                                        My bad for not noticing 9987 was setup for udp..

                                        In the packet capture log, only 30033 appears with the public ip, 9987 appears open on the last tool provided by you but does not appear in the log, I don't understand why it doesn't work

                                        1 Reply Last reply Reply Quote 0
                                        • R
                                          root1ng LAYER 8 @johnpoz
                                          last edited by Nov 5, 2023, 1:10 PM

                                          @johnpoz

                                          login-to-view

                                          It seems that it finally appears, but I still can't connect to the teamspeak server using the public ip

                                          V J 2 Replies Last reply Nov 5, 2023, 1:26 PM Reply Quote 0
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