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24.7 Production Series / Re: Pings through WAN interface not working (broken in 24.7.1-.3)
« on: August 30, 2024, 12:12:18 pm »
no issues here with this version - and IPv4 / IPv6 is monitored constantly, on 2 WAN lines.
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I plan to work on the code next week to see if we can find it. If anyone will bother to review and accept a potential patch in FreeBSD is the big money question.
@wirehead well, my guess would be that your other IPv6 provider just has different ND settings aka their router is more patient with your neighbor solicitation answers.
Before downgrading to 24.7 kernel I could clearly see my opnsense box having long delays every time when asked for neighbor solicitation, and clearly sometimes the operator's box hit some timeout and I could see short IPv6 outages, until ND worked again.
Well, now I am examining my IPv6 ND traffic with tcpdump and I cannot see any more delays in answering to neighbor solicitation requests! My opnsense is now responding to every ND packet immediately.
So far, it clearly looks like 24.7.1 kernel did break IPv6 neighbor discovery somehow.
Downgrading to 24.7 helped me and the IPv6 shenanigans disappeared. YMMV.
BR, -sjm
@Franco : Cried victory too fast. Still the same erratic behaviour. I've turned off IPv6 for now.
opnsense-update -zkr 24.7.1-icmp2
In order to be consistent LAGG should advertise it's "native" address under "ether" always and only show "hwaddr" when the user manually overwrote "ether" which is how everything else works. The mechanism is a bit too transparent and/or seems to use what the user would do rather than providing a transient "hwaddr" depending on which member is attached first.
Cheers,
Franco