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    [SOLVED] IPv6 Address not working in Alias

    Scheduled Pinned Locked Moved Firewalling
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    • kiokomanK
      kiokoman LAYER 8
      last edited by kiokoman

      In "TCP:S", the S is the TCP flag. It's a "syn" flag, which means it is trying to establish a connection
      the rule you have does not apply for some reason, hard to tell .. i think you need to check what's inside HOST_NFSClient and if [2003🅰*:22] is present in that list and also if it's allowed to send traffic on PUBLIC_IP_BRIDGE
      also, check this post https://forum.netgate.com/post/841371

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      Please do not use chat/PM to ask for help
      we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
      Don't forget to Upvote with the 👍 button for any post you find to be helpful.

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      • NogBadTheBadN
        NogBadTheBad
        last edited by NogBadTheBad

        Are there any rules above the NFS Server separator?

        Also any reason why you have tcp and udp rules, rather than tcp/udp?

        Have you killed the states?

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        • C
          Crunk_Bass
          last edited by

          Thanks for your quick reply.
          2003🅰*::22 is not listed under Diagnostics / Tables
          The addresses of the hosts I added with FQDN are inside the HOST_NFSClient table.
          Both addresses (IPv4 and IPv6) are listed if they are dual stack.

          When I copy the firewall entry and replace HOST_NFSClient with the IPv6 address I added to the alias the connection is working.
          In my opinion there must be something wrong with the alias.

          @NogBadTheBad said in IPv6 Address not working in Alias:

          Are there any rules above the NFS Server separator?

          Yes, but the behaiviour doesn't change when I move the rules to the top.

          @NogBadTheBad said in IPv6 Address not working in Alias:

          Also any reason why you have tcp and udp rules, rather than tcp/udp?

          I could not find a definitive answer which protocol is used and I wanted to see if it is true you need both and if so which one gets more traffic.

          @NogBadTheBad said in IPv6 Address not working in Alias:

          Have you killed the states?

          Yes

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          • NogBadTheBadN
            NogBadTheBad
            last edited by NogBadTheBad

            This post is deleted!
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            • C
              Crunk_Bass
              last edited by

              I do not have issues with the hosts.
              The IPv6 address I added does not work.
              Host resolution is fine.

              NogBadTheBadN 1 Reply Last reply Reply Quote 0
              • NogBadTheBadN
                NogBadTheBad @Crunk_Bass
                last edited by

                @Crunk_Bass

                Yup just reread your post then deleted my comment

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                • C
                  Crunk_Bass
                  last edited by

                  I just hit the Empty Table button on the Diagnostics / Tables page.
                  Now there are no entrys in HOST_NFSClient and it seems they do not get added back again.

                  I tried restarting the DNS resolver, saved the alias again and hit apply changes.

                  Status / System Logs / System / DNS Resolver lists

                  Nov 18 17:02:30	filterdns		Adding Action: pf table: HOST_NFSClient host: hostname1.example.com
                  Nov 18 17:02:30	filterdns		Adding Action: pf table: HOST_NFSClient host: hostname2.example.com
                  Nov 18 17:02:30	filterdns		Adding Action: pf table: HOST_NFSClient host: hostname3.example.com
                  Nov 18 17:02:30	filterdns		Adding Action: pf table: HOST_NFSClient host: hostname4.example.com
                  Nov 18 17:02:30	filterdns		Adding Action: pf table: HOST_NFSClient host: 2003:a:*::22
                  

                  but the list stays empty.

                  K 1 Reply Last reply Reply Quote 0
                  • JeGrJ
                    JeGr LAYER 8 Moderator
                    last edited by

                    URL Aliases are only refreshed after the time period defined in advanced settings. Default: 300s so you have to wait for at least 5min for them to repopulate or make a change, save the alias again and apply changes to force-reload the rules.

                    Don't forget to upvote 👍 those who kindly offered their time and brainpower to help you!

                    If you're interested, I'm available to discuss details of German-speaking paid support (for companies) if needed.

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                    • K
                      Konstanti @Crunk_Bass
                      last edited by Konstanti

                      @Crunk_Bass
                      Hello
                      try from the console to execute such command
                      pfctl -t HOST_NFSClient -T add your_ipv6_address

                      Are there any errors ?
                      if there are no errors, what shows
                      pfctl -t HOST_NFSClient -Ts

                      C 1 Reply Last reply Reply Quote 0
                      • C
                        Crunk_Bass @Konstanti
                        last edited by Crunk_Bass

                        @Konstanti adding the IP address from the command line works as expected.
                        After executing the command the IP address is shown under Diagnostics / Tables.
                        The other addresses that were present before I emptied the table are still missing.

                        Your second command lists the IP I added (same output as Diagnostics / Tables)

                        @JeGr Thanks for pointing that out. I knew I saw a setting somewhere regarding the time period the addresses are updated but didn't find it. The value is on default (300s) but until now nothing got added to the list.

                        Shoud I try restarting the firewall or do want to find out where the issue exactly is?
                        No problem if it takes a few days. As a workaround I added the rules manually for the IP addresses I need.

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                        • C
                          Crunk_Bass
                          last edited by

                          Thank you all very much for your help.

                          I rebooted the firewall and until now (uptime 20h) the aliases are working as expected.

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