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    No-IP Updating DDNS Address from VPN

    Scheduled Pinned Locked Moved General pfSense Questions
    27 Posts 3 Posters 3.0k Views
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    • Bob.DigB
      Bob.Dig LAYER 8 @DeathGrin
      last edited by

      @deathgrin Then show the first two "tabs" in >Services>Dynamic DNS>Dynamic DNS Clients.

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        Yes, is the dyndns client configured to use WAN directly? Or a gateway group?

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        • D
          DeathGrin @stephenw10
          last edited by

          @stephenw10, It is configured only for the WAN.

          @Bob-Dig, I am not sure what you mean? Did I miss the first part of a reply?

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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            He means show us your config so we can see what might be wrong there.

            Does your WAN have a private IP and uses external discovery to find the real IP?

            Steve

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            • D
              DeathGrin @stephenw10
              last edited by DeathGrin

              @stephenw10 Here you go and I have nothing configured for RFC 2136 Clients. And for my WAN, I have broadband through xfinity, so I just have DHCP setup and my modem in bridge mode:
              Screen Shot 2022-09-13 at 9.32.28 AM.png

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              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Hmm, and when it does the wrong thing the cached IP there shows the Wireguard interface address? Or the remote public IP?

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                • D
                  DeathGrin @stephenw10
                  last edited by

                  @stephenw10 No see that is what is weird, it shows the correct IP (my WAN Public IP from Xfinity, the 73.229.x.x) and so does the DDNS widget on the main status dashboard but when I perform an nslookup for my domain, it has the VPN Public IP (37.19.x.x). That is why I am confused as to why No-IP is caching the wrong Public IP....

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                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    If it resolves to that then something must have updated it. If pfSense isn't logging any dyndns updates with that IP is it possible you have another client behind the firewall sending updates?

                    Steve

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                    • D
                      DeathGrin @stephenw10
                      last edited by

                      @stephenw10 or anyone else that might have an idea. Below is the output from logs. For some reason, Dynamic DNS is pulling from my Mullvad VPN gateway (connecting to Denver). I have Dynamic DNS set to monitor WAN interface only so I am not sure why it's pulling from the VPN gateway...

                      2022-09-27 17:58:20.642801-06:00 	check_reload_status 	398 	updating dyndns mullvad_vpn_denver
2022-09-27 17:54:53.084818-06:00 	check_reload_status 	398 	updating dyndns mullvad_vpn_denver
2022-09-27 13:22:12.444495-06:00 	php-fpm 	22139 	/services_dyndns_edit.php: phpDynDNS (xxxxxxx.ddns.net): (Success) IP Address Changed Successfully!
2022-09-27 13:22:12.444432-06:00 	php-fpm 	22139 	/services_dyndns_edit.php: phpDynDNS: updating cache file /conf/dyndns_wannoip-free'xxxxxxx.ddns.net'0.cache: 73.xxx.xxx.xxx
2022-09-27 13:22:12.443438-06:00 	php-fpm 	22139 	/services_dyndns_edit.php: Dynamic DNS noip-free (xxxxxxx.ddns.net): 73.xxx.xxx.xxx extracted from local system.
2022-09-27 13:22:12.362510-06:00 	php-fpm 	22139 	/services_dyndns_edit.php: Dynamic DNS noip-free (xxxxxxxx.ddns.net): _checkStatus() starting.
2022-09-27 13:22:12.362491-06:00 	php-fpm 	22139 	/services_dyndns_edit.php: Response Data: good 73.xxx.xxx.xxx\x0d
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                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        But the 73.x.x.x IP there is the correct one?

                        You have a different dyndns client that's running on mullvad_vpn_denver?

                        Are you sure there is not another client running somewhere else that might be updating the ddns.net entry?

                        Steve

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                        • D
                          DeathGrin @stephenw10
                          last edited by

                          @stephenw10 Correct but the most recent events (should have mentioned, I have my log view flipped so newer events are at the top) shows that Dynamic DNS is pulling from my vpn to Mullvad for some reason even though I have it set to only WAN. I will triple check that I don't have any other clients with DDNS enabled but I am 99.99% I don't.

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                          • D
                            DeathGrin @DeathGrin
                            last edited by

                            And here for a more normal view, now most recent logs are at the bottom but you can still see dyndns is updating from all of my vpns for some reason...

                              2022-09-28 09:54:32.591314-06:00	php-fpm	22139	/rc.dyndns.update: phpDynDNS (site.ddns.net): No change in my IP address and/or 25 days has not passed. Not updating dynamic DNS entry.
2022-09-28 09:54:36.269588-06:00	check_reload_status	398	updating dyndns mullvad_vpn_denver
2022-09-28 09:54:40.893574-06:00	check_reload_status	398	updating dyndns site_to_site_site
2022-09-28 09:55:44.500746-06:00	check_reload_status	398	updating dyndns site_to_site_site
2022-09-28 09:55:48.069564-06:00	check_reload_status	398	updating dyndns mullvad_vpn_denver
2022-09-28 09:55:53.212823-06:00	check_reload_status	398	updating dyndns WAN_DHCP
2022-09-28 09:55:54.268282-06:00	php-fpm	19444	/rc.dyndns.update: Dynamic DNS: updatedns() starting
2022-09-28 09:55:54.351864-06:00	php-fpm	19444	/rc.dyndns.update: Dynamic DNS noip-free (site.ddns.net): 73.x.x.x extracted from local system.
2022-09-28 09:55:54.351890-06:00	php-fpm	19444	/rc.dyndns.update: Dynamic DNS (site.ddns.net): running get_failover_interface for wan. found em0
2022-09-28 09:55:54.432583-06:00	php-fpm	19444	/rc.dyndns.update: Dynamic DNS noip-free (site.ddns.net): 73.229.x.x extracted from local system.
2022-09-28 09:55:54.432650-06:00	php-fpm	19444	/rc.dyndns.update: Dynamic Dns (site.ddns.net): Current WAN IP: 73.229.x.x Cached IP: 73.229.x.x
2022-09-28 09:55:54.432669-06:00	php-fpm	19444	/rc.dyndns.update: phpDynDNS (site.ddns.net): No change in my IP address and/or 25 days has not passed. Not updating dynamic DNS entry.
2022-09-28 10:00:55.875749-06:00	php-fpm	360	/services_dyndns.php: Successful login for user 'user' from: 172.20.x.x (Local Database)
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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Those logs indicate it's checking each WAN, that's what the dyndns updater does. But then is shows it find the expected IP against em0 directly and that's the same as the cached IP.
                              Those logs do not appear to show it updating the record with the VPN IP address.

                              Try disabling it entirely and see if it still gets updated by something.
                              Have you ever configured anything else to update that dyndns entry?

                              Steve

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                              • D
                                DeathGrin @stephenw10
                                last edited by

                                @stephenw10 So for whatever reason, if when it's cached correctly in the logs with the 73.x.x.x address (my public WAN IP) it still gets updated with the Mullvad VPN public IP and NO-IP DDNS only seems to get updated with VPN IP when I add the firewall rule for LAN to force traffic from my main LAN out of that interface (VPN). Should I be setting up to force traffic out the VPN a different way?

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

                                  @deathgrin Maybe show all rules on Floating and all NAT Outbound rules.

                                  Maybe you have another DDNS Client you forgot about on one of your hosts?

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                                  • D
                                    DeathGrin @Bob.Dig
                                    last edited by

                                    @bob-dig I am 99% positive I don't have anything else updating Dynamic DNS besides my pfsense box. Here are snippets of the rules you asked for. I also have manual rules in outbound NAT where I was trying to force all traffic destined for anything NOIP for DDNS updates out my main WAN and not vpn.
                                    Screen Shot 2022-09-30 at 12.34.28 PM.png
                                    Screen Shot 2022-09-30 at 12.34.51 PM.png
                                    Screen Shot 2022-09-30 at 12.34.28 PM.png
                                    Screen Shot 2022-09-30 at 12.37.44 PM.png

                                    Bob.DigB 2 Replies Last reply Reply Quote 0
                                    • Bob.DigB
                                      Bob.Dig LAYER 8 @DeathGrin
                                      last edited by Bob.Dig

                                      @deathgrin I don't think you need any of the manual outbound rules (other then xbox) but I am no expert.
                                      But the rules seem to be ok.

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                                      • Bob.DigB
                                        Bob.Dig LAYER 8 @DeathGrin
                                        last edited by Bob.Dig

                                        @deathgrin Default Gateway (SystemRoutingGateways) should be WAN, if you haven't checked that.

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                                        • D
                                          DeathGrin @Bob.Dig
                                          last edited by

                                          @bob-dig yeah I have my default WAN manually set to the specific ISP Interface and not set to Automatic.

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

                                            @deathgrin Maybe it is a hiding ddclient on some linux server or in your Access-point or something, I don't think it is pfSense.

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