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    PfSense changes subnet in the nat rules!!

    Scheduled Pinned Locked Moved General pfSense Questions
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    • stephenw10S Offline
      stephenw10 Netgate Administrator
      last edited by

      Mmm, I can't replicate it either.

      That is what you're doing though? On your system making that change to one port forward changed all of them and set the destination to /31?

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      • G Offline
        Gianluca 0 @stephenw10
        last edited by Gianluca 0

        @stephenw10 in all rules that have TCP/UDP, Pfsense change only the destination network subnet to /31, I repeat, previously configured has singles host, to network address /31.

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        • stephenw10S Offline
          stephenw10 Netgate Administrator
          last edited by

          If it's actually set to a /31 subnet it will show as that there:

          Screenshot from 2021-09-28 14-15-02.png

          Are you sure this is not your browser auto-fill setting some fields when you edit the rule?

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          • johnpozJ Online
            johnpoz LAYER 8 Global Moderator @Gianluca 0
            last edited by

            @gianluca-0 said in PfSense changes subnet in the nat rules!!:

            try to see inside the rules in network

            Those are the wan rules.. Here our the nat rules

            natrules.jpg

            Yes this is a clean install of 2.5.2.. Sorry don't have a 5 year old test setup that I have kept updating over the years ;) heheh

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
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            • G Offline
              Gianluca 0 @stephenw10
              last edited by

              @stephenw10 yes :) I'm sure..I understand what you're meaning. And autofill can not change from single host to network address and also change subnet to /31 (I think).

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              • G Offline
                Gianluca 0 @Gianluca 0
                last edited by

                anyway, I need some time to build a new Pfsense virtual machine and restore my configuration, so see what happened. Pfsense is not owned by us, we have a manager user but we cannot log in with ssh for example.

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                • stephenw10S Offline
                  stephenw10 Netgate Administrator
                  last edited by

                  There is something slightly odd there in 2.5.2/21.05.1. If you set the destination as network the list of subnet sizes includes /32 and also /31 twice!

                  nat-rule-subnet.jpg

                  However selecting them doesn't seen to cause a problem. And it's fixed in 2.6/21.09.

                  Steve

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                  • G Offline
                    Gianluca 0 @stephenw10
                    last edited by

                    @stephenw10 but that Nat rules are single hosts, so / 32 is implied.

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                    • stephenw10S Offline
                      stephenw10 Netgate Administrator
                      last edited by

                      Exactly. If you set /32 there it just goes back to single host. It should not appear in that list as a 'network' but selecting it does no harm.

                      Steve

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                      • johnpozJ Online
                        johnpoz LAYER 8 Global Moderator @stephenw10
                        last edited by johnpoz

                        @stephenw10 said in PfSense changes subnet in the nat rules!!:

                        If you set the destination as network the list of subnet sizes includes /32 and also /31 twice!

                        Where are you seeing this? Looking on nat and firewalls - I do not see that

                        natfirewall.jpg

                        Oh I see it on 21.05.1 but not my test 2.5.2 box..

                        But only in the nat, not firewall rules..

                        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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                        • stephenw10S Offline
                          stephenw10 Netgate Administrator
                          last edited by

                          Yeah, I was testing in 21.05.1. I assume it would affect both. Hmm.

                          Either way it's fixed in 21.09 so...

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                          • johnpozJ Online
                            johnpoz LAYER 8 Global Moderator @stephenw10
                            last edited by

                            @stephenw10 said in PfSense changes subnet in the nat rules!!:

                            Either way it's fixed in 21.09 so...

                            Which should be released any day ;) Since only a couple of days left in September (Month 9) hehehe..

                            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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