ipv6 broken: radvd: can't join ipv6-allrouters on <interface>
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@w0w said in ipv6 broken: radvd: can't join ipv6-allrouters on <interface>:
@jimp Hmm, missed that reddit post, thanks a lot for the information!
Any clue why #9577 is not showing up on the issue list anymore?
It might be better to split the redmine issue into two since there is spamming log issue and a FreeBSD 12.0 issue?
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In net/radvd of Ports, remove logging of "IPv6 forwarding" in interface.c since "check_ip6_iface_forwarding" routine is stubbed out in "radvd/device-bsd44.c". This is unrelated to the FreeBSD 12 version
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Upgrade network interfaces including netinet6/in6_mcast.c to code in RELENG/12.1. The mcast changes in 12.1 are extensive enough to both ipv4 and ipv6 to prohibit back-porting (I tried). This second issue resolves the "can't join ipv6-routers" logging and permits RADVD to function beyond 24 hours.
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so to fix this we need to update to 12.1 and that has 25% perf hit. ooof
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@strangegopher
Not so bad, I think. May be it affects only maximum throughput, who knows, no further information at the moment. Also as @jimp mentioned, they can apply some fixes by picking up some parts from stable.@rschell
I've never checked was it listed before or not, but i don't see any changes made about that. May be it's because target version is missing? -
Any news about the problem/patch? I have this bug too, but too lazy/dont have time to go back to 2.4.4...
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@havastamas
Waiting for the new builds based on 12.1 version of FreeBSD. I don't know if there any target date available.
Currently you can use workaround published by @kiokoman. I use it with cron package. Just running command every hour.
killall radvd && sleep 5 && /usr/local/sbin/radvd -p /var/run/radvd.pid -C /var/etc/radvd.conf -m syslog -
@w0w This workaround is much better than reboot the firewall every 6 hours, to get ipv6 working. Thank you!
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@w0w btw what is the experience with this patch? My ISP disconnets every user after 7 days of uptime, then gives new ipv4/v6 adress (dual stack).
Do you think this workaround will work after 7 days of uptime?
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@havastamas With my build, applying fixes to to get 6RD working, removing spam messaging in RADVD and upgrading to 12.1 code base, my firewall has been up and passing ipv6 tests for over 12 days now.
So I think a solution has been found, its now a matter of priorities. Switching to 12.1 is non-trivial and who knows what other issues that creates. I'm not a networking expert and my application is relatively simple, so all it has done is highlighted that no fatal flaws are out there with starting to move that direction.
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@havastamas
If you are talking about workaround... I see no reason why the workaround would not work, but it’s easier to check yourself whether it works or not. -
any updates on this?
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https://redmine.pfsense.org/issues/9577 is updated, but nothing new so far, waiting for the new build based on 12.1
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@jimp when do we expect snapshots based on FreeBSD 12.1? Is it coming early 2020?
Happy holidays!
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@w0w said in ipv6 broken: radvd: can't join ipv6-allrouters on <interface>:
@jimp when do we expect snapshots based on FreeBSD 12.1? Is it coming early 2020?
Happy holidays!im sure upgrading to 12.1 will break other things and require more testing. But I hope this issue will be fixed.
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@strangegopher said in ipv6 broken: radvd: can't join ipv6-allrouters on <interface>:
im sure upgrading to 12.1 will break other things and require more testing. But I hope this issue will be fixed.
I’m reasonably current with 12.1 and haven’t noticed any new issues and a few other issues have been fixed. Most of the 2.50 pfsense commits to 12.0 apply to 12.1 without conflicts.
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@rschell thats great news! thanks for all the work. Happy holidays!
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@rschell
Ronald, any chances to get already compiled radvd with patch provided on https://redmine.pfsense.org/issues/9577? Just for testing. -
@w0w I can give it a try. I’ll have to update my 2.5 version first, it’s been a while.
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@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:1I have the txz file ready and have posted it to the redmine issue #9577 for those who wish to test the alternate patch.
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Thanks, testing.
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@w0w - any results so far?
