Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    PFsense CE 2.5.1 NAT broken on interface != default WAN

    Scheduled Pinned Locked Moved NAT
    pfsense 2.5natbug2.5.1wan
    56 Posts 23 Posters 16.6k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • S
      slu
      last edited by

      We also affected and must roll back.
      Maybe there is a hotfix in the next hours, would be great.

      pfSense Gold subscription

      C 1 Reply Last reply Reply Quote 0
      • C
        CaliPilot @Cool_Corona
        last edited by

        @cool_corona said in PFsense CE 2.5.1 NAT broken on interface != default WAN:

        @calipilot Is it working for IP alias'??

        Good question, i don’t have an alias configured on our WAN-interface. For sure is that NAT is not working on an IP-Alias if used on an != default WAN.

        Chris

        1 Reply Last reply Reply Quote 0
        • C
          CaliPilot @slu
          last edited by

          @slu said in PFsense CE 2.5.1 NAT broken on interface != default WAN:

          We also affected and must roll back.
          Maybe there is a hotfix in the next hours, would be great.

          A hotfix would be awesome! Fingers crossed that Netgate is pushing this issue...

          Chris

          1 Reply Last reply Reply Quote 0
          • C
            CaliPilot @Bob.Dig
            last edited by

            @bob-dig said in PFsense CE 2.5.1 NAT broken on interface != default WAN:

            @calipilot Maybe this?

            https://redmine.pfsense.org/issues/11805

            Yep, it’s the same issue like the link I’ve posted.

            Chris

            1 Reply Last reply Reply Quote 0
            • S
              spigandromeda
              last edited by

              Same for me. I made and Snaphsot on ESXi and upgraded to 2.6.0-dev. That solved the problem for now. When a hotfix is released for 2.5.1, I will roll back.

              YanikY 1 Reply Last reply Reply Quote 0
              • YanikY
                Yanik @spigandromeda
                last edited by

                This post is deleted!
                1 Reply Last reply Reply Quote 0
                • S
                  slu
                  last edited by

                  One point is not really clear to me, is this only an issue if I use gateway groups?

                  pfSense Gold subscription

                  C 1 Reply Last reply Reply Quote 0
                  • C
                    CaliPilot @slu
                    last edited by

                    @slu said in PFsense CE 2.5.1 NAT broken on interface != default WAN:

                    One point is not really clear to me, is this only an issue if I use gateway groups?

                    Nope, in my case, we don't have gateway groups.

                    Chris

                    S 1 Reply Last reply Reply Quote 0
                    • S
                      slu @CaliPilot
                      last edited by

                      @calipilot
                      hope Netgate can help us with an hotfix.

                      pfSense Gold subscription

                      1 Reply Last reply Reply Quote 0
                      • 0
                        0x00FE 0
                        last edited by

                        I confirm the same issue here.
                        I have multi WAN setup, after the upgrade all NAT rules ceased to work.
                        I advised a friend not to upgrade, he already did, but isn't suffering from the issue.
                        It seems to be an issue with multi WAN configurations.

                        I had to roll back to previous version.

                        1 Reply Last reply Reply Quote 0
                        • I
                          imanrnm
                          last edited by

                          i have the same problem.
                          i am on multi WAN and all port forwards stop functioning...

                          how can i downgrade to 2.5.0?

                          1 Reply Last reply Reply Quote 0
                          • 0
                            0x00FE 0
                            last edited by

                            @imanrnm unfortunately, there is no easy way. You have to download the older version and install it. You should also have a backup of your configuration to restore from.
                            I can see another post on your profile saying you've upgraded to 2.6.0, which is still in development and not recommended for production use.

                            I 1 Reply Last reply Reply Quote 0
                            • I
                              imanrnm @0x00FE 0
                              last edited by imanrnm

                              @0x00fe-0 Thank you for reply.
                              yeah i updated to 2.6.0 and the problem is gone but there is other problems!
                              for example my speed limiters aren't working now!

                              i have a veeam backup from 3 days ago before update to 2.5.1, i will try to restore that and see what happens.

                              all i know is that there is a real mess right now in my network because of a simple pfsense update and i will never again update my firewall right after they release it and will wait at least some days...

                              S J 2 Replies Last reply Reply Quote 0
                              • S
                                slu @imanrnm
                                last edited by

                                @imanrnm
                                we downgrade to 2.5.0, not perfect because of the openssl vulnerability.
                                https://www.openssl.org/news/vulnerabilities.html

                                And no note in the known issues:
                                https://docs.netgate.com/pfsense/en/latest/releases/21-02-2_2-5-1.html

                                pfSense Gold subscription

                                1 Reply Last reply Reply Quote 0
                                • Antonio76A
                                  Antonio76
                                  last edited by

                                  Thanks God I found this post . I was going crazy .
                                  NAT is not broken but suddenly stop working in 2.5.1 .

                                  I must apologize to my certbot server since I'm requesting SSL like there is not tomorrow , and of course, my reverse proxy isn't happy !!!

                                  Any workaround ? not feeling to downgrade or go BETA

                                  cheers ,

                                  S B 2 Replies Last reply Reply Quote 1
                                  • S
                                    slu @Antonio76
                                    last edited by

                                    @antonio76

                                    unfortunately there is no information about a 2.5.x / -px release.
                                    First time in over 10 years pfSense we can't upgrade the system.

                                    pfSense Gold subscription

                                    Antonio76A 1 Reply Last reply Reply Quote 2
                                    • J
                                      j.sejo1 @imanrnm
                                      last edited by

                                      @imanrnm Since CE and Plus + =(

                                      Pfsense - Bacula - NagiosZabbix - Zimbra - AlienVault
                                      Hardening Linux
                                      Telegram: @vtlbackupbacula
                                      http://www.smartitbc.com/en/contact.html

                                      1 Reply Last reply Reply Quote 1
                                      • Antonio76A
                                        Antonio76 @slu
                                        last edited by

                                        @slu regretfully 😥

                                        1 Reply Last reply Reply Quote 0
                                        • B
                                          bennyc @Antonio76
                                          last edited by

                                          @antonio76
                                          No workaround or quick fix. See latest reply from Jim Pingle here: issue 11805
                                          The issue seems to be "in kernel" so bummer, we need to wait it out.

                                          4x XG-7100 (2xHA), 1x SG-4860, 1x SG-2100
                                          1x PC Engines APU2C4, 1x PC Engines APU1C4

                                          J 1 Reply Last reply Reply Quote 0
                                          • J
                                            j.sejo1 @bennyc
                                            last edited by

                                            @bennyc said in PFsense CE 2.5.1 NAT broken on interface != default WAN:

                                            No workaround or quick fix. See latest reply from Jim Pingle here: issue 11805
                                            The issue seems to be "in kernel" so bummer, we need to wait it out.

                                            UPDATE for: Jim Pingle

                                            2.6.0 snapshots are currently working correctly, and the fix was checked into RELENG_2_5_0. Whatever release happens next will behave correctly either way (e.g. a 2.6.0 release or a 2.5.x point or patch release).

                                            Pfsense - Bacula - NagiosZabbix - Zimbra - AlienVault
                                            Hardening Linux
                                            Telegram: @vtlbackupbacula
                                            http://www.smartitbc.com/en/contact.html

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.