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    Forwarding and ping from WAN dont work. (SOLVED)

    Scheduled Pinned Locked Moved NAT
    forwardingportnatpingwan
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator
      last edited by johnpoz

      @stefoo said in Forwarding and ping from WAN dont work.:

      14:54:13.272415 IP 192.168.100.7.80 > 185.12.24.42.61019: tcp 0

      Your box your forwarding too clearly sends a response - what is this response? Is it a RST? Did that actually go back to pfsense IP (mac address?) open that sniff in wireshark

      BTW your rules are WRONG... Just let your port forward create the rules...

      They should look like this..

      0_1538656904323_forward.png

      Why do you have that 8007 rule to any in there?

      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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      • S
        Stefoo
        last edited by Stefoo

        I added that rule just in case, otherwise I leave NAT create its rules.
        I have a question. If a port is forwarded than is it closed? Because port open checker is reporting that port is closed while when sniffing when checker connects its obvious traffic gets trough.
        @johnpoz I guess its not RST. Sorry, I am not good in reading captured packets.
        WireShark on WAN
        0_1538677054697_Screen Shot 2018-10-04 at 21.01.42.png

        WhireShark on LAN
        0_1538677146110_Screen Shot 2018-10-04 at 21.18.26.png

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        • johnpozJ
          johnpoz LAYER 8 Global Moderator
          last edited by johnpoz

          So from that your seeing syn,ack which is the proper answer to a syn - but its not going back out your wan..

          Your taking those sniffs on pfsense lan interface.. And its sending it to pfsense lan mac - from that arp I assume pfsense lan IP is 192.168.100.1 with mac address 00:10:dc:20:a0:87

          Do you have more than 1 wan? What are you rules on your lan? Are you using any sort of captive portal on the lan side?

          What do you have for outbound nat?

          Does this clients internet work? Can it go through pfsense for internet and that works? When you sniffed on wan did you limit that to IP or something. You sure pfsense not sending that traffic back out to your outside IP but didn't nat it - ie sending it out with the 192.168.100.7 address?

          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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          • S
            Stefoo
            last edited by

            This post is deleted!
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            • S
              Stefoo
              last edited by

              IT WAS CAPTIVE PORTAL BLOCKING DEVICE TO WAN.

              @johnpoz Next time I will take 3 beers. One is for you.
              Thanks for helping.

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by

                And PEBKAC strikes again ;) This is the root cause of all port forwarding issues...

                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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                • S
                  Stefoo
                  last edited by

                  I dont completely agree, although this CP has made me confused not once.
                  While forwarding is different case, because connection is established from outside, so CP should not ask devices for rights to respond.
                  Maybe I am wrong.
                  What got me confused was that ping from WAN.
                  Well! Now at least that PEBKAC can sniff and diagnose a bit better ;)

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                  • DerelictD
                    Derelict LAYER 8 Netgate
                    last edited by

                    That is number 9 of things to check here:

                    https://www.netgate.com/docs/pfsense/nat/port-forward-troubleshooting.html#common-problems

                    When I emphasize check (really check) everything there, this is what I am talking about.

                    It is invariably something on that list.

                    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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                    • S
                      Stefoo
                      last edited by

                      Hi,
                      Can I ask a bit of hinting about NAT reflection, I guess.
                      The case is ... I got the the forwarding to work ok. I got the DDNS to work with the forwarding ok. My ports are not 1:1, hence I forward 77 to 88.
                      But when I try to connect from the internal network by the domain:port it does not connect.
                      I guess its not connecting since the reflection is connecting to ports 77 while on the internal network services are on 88?
                      I tried to override that by playing with settings, but no luck.
                      So far have no idea what to search for to understand better the case.

                      Thank you again for any comments and ofc your critique.

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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator
                        last edited by

                        Nat reflection is ALWAYS the worse option to choose.. I don't understand why anyone would ever want to nat reflect..

                        if host.domain.tld is on the same network next to you - then why would you not just resolve host.domain.tld to that IP.. Why would you ever want to go to the public IP to be reflected back in??

                        As to forwarding port X to port Y.. That is always a work around in itself to all to go to the same service with the limitation of napt and only 1 public IP, etc.

                        If you want to go to host.domain.tld:port then go there where host.domain.tld resolves to the local IP and not the public ip..

                        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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