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    ipv6 broken: radvd: can't join ipv6-allrouters on <interface>

    Scheduled Pinned Locked Moved 2.5 Development Snapshots (Retired)
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    • ?
      A Former User @w0w
      last edited by A Former User

      @w0w said in ipv6 broken: radvd: can't join ipv6-allrouters on <interface>:

      @rschell
      Ronald, any chances to get already compiled radvd with patch provided on https://redmine.pfsense.org/issues/9577? Just for testing.

      I think I got a RADVD version based on 2.5 now. My build machine is based on stable-12 and there was a linker change that required changing one of the linker options (added -z notext).

      The test version is based on the 2.5 source changing the behavior of setup_allrouters_membership routine in the RADVD port. From the code listed in 9577, I changed the dimension of the msockets table from 10 to 50 and added a logging message when a socket has been added to the table and also expanded the "can't join" message to include additional information should the IPV6_JOIN_GROUP call fail. Normal operation should log the following messages in the Routing log, one for each interface configured:

      Feb 11 08:28:18 	radvd 	78824 	version 2.18 started
Feb 11 08:28:18 	radvd 	78834 	adding ipv6-allrouters on em0, sock: 4, iface->props.if_index:1

      I have the txz file ready and have posted it to the redmine issue #9577 for those who wish to test the alternate patch.

      1 Reply Last reply Reply Quote 3
      • w0wW
        w0w
        last edited by

        Thanks, testing.

        M 1 Reply Last reply Reply Quote 0
        • M
          motific @w0w
          last edited by

          @w0w - any results so far?

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          • kiokomanK
            kiokoman LAYER 8
            last edited by kiokoman

            i'm start testing right now, we need at least 24 h to tell if it's ok. no prob so far :)

            Feb 13 18:58:33 	radvd 	38033 	adding ipv6-allrouters on ix0.100, sock: 4, iface->props.if_index:12
Feb 13 18:58:33 	radvd 	37849 	version 2.18 started

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            • w0wW
              w0w
              last edited by

              Yes, I can confirm that IPv6 works good. About 36 hours and no problem.

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              • kiokomanK
                kiokoman LAYER 8
                last edited by

                after all this days it's still working good
                great job @rschell

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                • kiokomanK
                  kiokoman LAYER 8
                  last edited by

                  @rschell idk if it's related to this update but lately i had trouble with my ipv6 tunnel, i still need to investigate but the problem is that my tunnel does not work after a reboot
                  the gif is up but gateway monitor say packet loss 100%
                  i had to reboot 2 / 3 times in a row to make it work again

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                  • ?
                    A Former User @kiokoman
                    last edited by

                    @kiokoman Unlikely related to the proposed patch. I'm using an 6RD stf interface and have noticed issues with loss of the WAN connection. Might be a timing issue with the gif interface, not certain.

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                    • kiokomanK
                      kiokoman LAYER 8
                      last edited by

                      some kind of race condition at boot maybe, also if i wait some hours the tunnel start to work alone. but it's faster if i reboot until it start working. idk the problem started last week just after i moved pfsense from bare metal to esxi, probably something to do with that

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                      • ?
                        A Former User @kiokoman
                        last edited by

                        @kiokoman I've noticed that bare metal vs Hyper V behave differently in subtle ways.

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                        • kiokomanK
                          kiokoman LAYER 8
                          last edited by kiokoman

                          ok i think that i found what's going on, if i disable openvpn before restarting pfsense the tunnel work.
                          so i have to disable openvpn, restart pfsense, and when it's up i can start the openvpn otherwise i have trouble

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                          • w0wW
                            w0w
                            last edited by w0w

                            Looks like there are no error messages on the latest STABLE snapshots.

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                            • kiokomanK
                              kiokoman LAYER 8
                              last edited by kiokoman

                              do we no longer have to apply that patch manually?
                              I have not yet had time to update and verify

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                              • w0wW
                                w0w @kiokoman
                                last edited by

                                @kiokoman
                                Wait for 24h and I tell you :)

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                                • kiokomanK
                                  kiokoman LAYER 8
                                  last edited by

                                  all clear for now

                                  May 2 12:34:32 	radvd 	73936 	resuming normal operation
May 2 12:34:32 	radvd 	73936 	attempting to reread config file
May 2 12:02:28 	radvd 	73936 	adding ipv6-allrouters on vmx1.100, sock: 4, iface->props.if_index:8
May 2 12:02:28 	radvd 	73720 	version 2.18 started

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                                  ? 1 Reply Last reply Reply Quote 0
                                  • w0wW
                                    w0w
                                    last edited by 

                                    ping -t ipv6.google.com
Ping request could not find host ipv6.google.com. Please check the name and try again.

                                    and

                                    May 3 16:47:23 	radvd 	27820 	can't join ipv6-allrouters on ix1
May 3 16:47:15 	radvd 	27820 	can't join ipv6-allrouters on ix1
May 3 16:47:00 	radvd 	27820 	can't join ipv6-allrouters on ix1
May 3 16:46:54 	radvd 	27820 	can't join ipv6-allrouters on ix1
May 3 16:46:37 	radvd 	27820 	can't join ipv6-allrouters on ix1
May 3 16:46:26 	radvd 	27820 	can't join ipv6-allrouters on ix1
May 3 16:46:14 	radvd 	27820 	can't join ipv6-allrouters on ix1
May 3 16:45:58 	radvd 	27820 	can't join ipv6-allrouters on ix1
May 3 16:45:42 	radvd 	27820 	can't join ipv6-allrouters on ix1

                                    So, not yet.

                                    Waiting for https://github.com/pfsense/FreeBSD-ports/pull/773 to be merged. I have no problems with patched binary.

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                                    • ?
                                      A Former User @kiokoman
                                      last edited by

                                      @kiokoman It appears you are still using the patched binary. I had my main pfSense running for 35+ days with the patch, so I am reasonably certain that it is a good work around for the issues in stable-12.

                                      w0wW 1 Reply Last reply Reply Quote 0
                                      • w0wW
                                        w0w @A Former User
                                        last edited by

                                        @rschell
                                        Yep, it can be true, I have found it right after installing STABLE. I looked for a error messages, did not found it and did

                                        pkg install -f -y radvd

                                        It downgraded my version back to that one which is in the pfSense repository and sorry guys but it failed the same way as before. I just forgot that another one error message

                                        IPv6 forwarding on interface seems to be disabled, but continuing anyway

                                        got its own fix and I thought that the current version was updated so sorry guys for false hope!

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                                        • kiokomanK
                                          kiokoman LAYER 8
                                          last edited by

                                          ah ok, then the upgrade didn't remove the patched radvd, well no problem it works, I'm happy

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                                          • B
                                            bimmerdriver
                                            last edited by

                                            I'm running the latest development release:

                                            2.5.0-DEVELOPMENT (amd64)
                                            built on Wed Jun 03 13:09:01 EDT 2020
                                            FreeBSD 12.1-STABLE

                                            This morning, I noticed the routing log filled with this message:

                                            Jun 7 10:01:16 radvd 76671 can't join ipv6-allrouters on hn1

                                            IPv6 was not working. I rebooted and the system is now working.

                                            ? 1 Reply Last reply Reply Quote 0
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