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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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    • S
      strangegopher @Irata
      last edited by

      @Irata thank you, good to know that I am not the only one.
      Can someone from pfsense team let us know if a bug report needs to be opened?

      I 1 Reply Last reply Reply Quote 0
      • I
        Irata @strangegopher
        last edited by

        @strangegopher thanks, glad I found your post as I also thought it was just me!

        It happens on all interfaces at the same time, so I took a packet capture on a quiet subnet - but nothing of interest again, can just see when the router advertisements stop.

        Sadly my restart workaround using cron has side effects, any active IPv6 connections are dropped each time it runs. And one Android device even disconnects from WiFi each time radvd is restarted, it treats a loss of IPv6 as a network problem, bizarre but true.

        Be interested to hear if anyone using radvd and IPv6 does not have this issue? Check Routing logs in System Logs.

        I'm at a loss what else to do. It's interesting that a periodic restart masks the problem, does that point to radvd being the problem?

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        • M
          maverick_slo
          last edited by stephenw10

          I don't have this issue.
          I'm on 2.5 with uptime 3 days.

          S 1 Reply Last reply Reply Quote 0
          • S
            strangegopher @maverick_slo
            last edited by

            @maverick_slo do u have ipv6?

            1 Reply Last reply Reply Quote 0
            • M
              maverick_slo
              last edited by

              Since 2013 😁

              1 Reply Last reply Reply Quote 0
              • arafeyA
                arafey
                last edited by

                I've been having this problem as well and I also noticed that it's about 6 hours before IPv6 suddenly breaks. This should definitely be fixed before 2.5.0 is released.

                1 Reply Last reply Reply Quote 0
                • C
                  crimper
                  last edited by

                  I am having the same issue. IPv6 would stop working within 24 hours. I backup the config.xml from the 2.5 and restored the file to a 2.4.4_p2 and it does not have the problem.

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                  • I
                    Irata
                    last edited by

                    I'm not sure how to find what's common.

                    I'm running pfsense within VMware ESXi and have this issue. Are others with this issue the same?

                    I can also confirm the latest 2.4 branch does not have this issue with the same config.

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

                      I am running it on baremetal dell box but I am using chelsio 10G sfp+ nic.

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

                        @jimp sorry for the ping but do u have any idea why ipv6 stops working?

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                        • M
                          motific
                          last edited by

                          How is it on a fresh 2.5 install with the old config?

                          I’ve just had some bad behaviour with radvd not responding at all (not quite the same as your issue) and that has cleared it.

                          I 1 Reply Last reply Reply Quote 0
                          • kiokomanK
                            kiokoman LAYER 8
                            last edited by

                            i have similar behavior on my log

                            Jun 6 21:32:29 	radvd 	66014 	resuming normal operation
Jun 6 21:32:29 	radvd 	66014 	attempting to reread config file
Jun 6 18:57:34 	radvd 	66014 	resuming normal operation
Jun 6 18:57:34 	radvd 	66014 	attempting to reread config file
Jun 6 14:01:49 	radvd 	65728 	version 2.17 started 
Jun 6 14:00:39 	radvd 	67952 	can't join ipv6-allrouters on igb2
Jun 6 14:00:39 	radvd 	67952 	can't join ipv6-allrouters on ath0_wlan0
Jun 6 14:00:33 	radvd 	67952 	can't join ipv6-allrouters on igb2
Jun 6 14:00:22 	radvd 	67952 	can't join ipv6-allrouters on igb2
Jun 6 14:00:20 	radvd 	67952 	can't join ipv6-allrouters on ath0_wlan0
Jun 6 14:00:08 	radvd 	67952 	can't join ipv6-allrouters on igb2
Jun 6 14:00:01 	radvd 	67952 	can't join ipv6-allrouters on ath0_wlan0
Jun 6 13:59:53 	radvd 	67952 	can't join ipv6-allrouters on ath0_wlan0
Jun 6 13:59:53 	radvd 	67952 	can't join ipv6-allrouters on igb2
Jun 6 13:59:40 	radvd 	67952 	can't join ipv6-allrouters on ath0_wlan0
Jun 6 13:59:36 	radvd 	67952 	can't join ipv6-allrouters on igb2
Jun 6 13:59:30 	radvd 	67952 	can't join ipv6-allrouters on igb2
Jun 6 13:59:25 	radvd 	67952 	can't join ipv6-allrouters on ath0_wlan0

                            igb0 is wan
                            igb1 is lan
                            on igb2 i have only 1 pc, a server connected with static ipv6
                            on ath0_wlan0 i have a couple of notebook with windows 10 and a couple of android phone

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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 !
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                            • I
                              Irata @motific
                              last edited by

                              A fresh install causes the same error for me, once stateless IPv6 is setup. I can't find a stable working system whatever I do, other than back to 2.4.

                              Because I'm using an ESXi testbed, it's easy to spin up new installs.

                              I do think there is something fundamental here, given the reports from wide ranging setups.

                              1 Reply Last reply Reply Quote 0
                              • kiokomanK
                                kiokoman LAYER 8
                                last edited by kiokoman

                                the error is generated from device-bsd44.c, a patch it's inside the port of radvd for freebsd
                                tracking back there was similar problem. related Bug #2878 https://redmine.pfsense.org/issues/2878 from 2013

                                /* XXX: See pfSense ticket #2878 */
+	setsockopt(sock, IPPROTO_IPV6, IPV6_LEAVE_GROUP, &mreq, sizeof(mreq));
+
+	if (setsockopt(sock, IPPROTO_IPV6, IPV6_JOIN_GROUP,
+			&mreq, sizeof(mreq)) < 0) {
+		flog(LOG_ERR, "can't join ipv6-allrouters on %s", iface->props.name);
+		return (-1);
+ }

                                maybe it's time for a new ticket
                                https://redmine.pfsense.org/issues/9577

                                ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                                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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                                • S
                                  strangegopher
                                  last edited by

                                  idk if we open a ticket devs might just ignore it, first we should get devs on the forums to tell us if we need to open a bug.

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

                                    @strangegopher - they're aware of it, one of the devs referred to the ticket in a thread with an issue I'm having.

                                    1 Reply Last reply Reply Quote 0
                                    • M
                                      maverick_slo
                                      last edited by

                                      Now it hit me too:

                                      Jun 29 07:17:29 radvd 62926 can't join ipv6-allrouters on hn0.10
                                      Jun 29 07:15:22 radvd 62926 can't join ipv6-allrouters on hn0.10
                                      Jun 29 07:15:00 radvd 62926 can't join ipv6-allrouters on hn0.9
                                      Jun 29 07:13:07 radvd 62926 can't join ipv6-allrouters on hn0.7
                                      Jun 29 07:12:47 radvd 62926 can't join ipv6-allrouters on hn0.10
                                      Jun 29 07:11:25 radvd 62926 can't join ipv6-allrouters on hn0.8
                                      Jun 29 07:11:23 radvd 62926 can't join ipv6-allrouters on hn0.9
                                      Jun 29 07:10:22 radvd 62926 can't join ipv6-allrouters on hn0.10
                                      Jun 29 07:08:10 radvd 62926 can't join ipv6-allrouters on hn0.10

                                      I 1 Reply Last reply Reply Quote 0
                                      • kiokomanK
                                        kiokoman LAYER 8
                                        last edited by

                                        welcome to the party !

                                        ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                                        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.

                                        1 Reply Last reply Reply Quote 0
                                        • I
                                          Irata @maverick_slo
                                          last edited by

                                          @maverick_slo made any changes recently, or added any new IPv6 devices?

                                          1 Reply Last reply Reply Quote 0
                                          • M
                                            maverick_slo
                                            last edited by

                                            No changes no new devices.
                                            I just came home from vacation...

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