IPv6 prefix is not stored to kernel when multipath is enabled in 1.6.8

[Maria Matejka]

On Fri, Feb 14, 2025 at 05:52:18PM +0800, Jimmy Lim wrote:

> I thought the issue might be related to configuration instead of bird
> version 😕

There is quite some code difference between BIRD 1 and 2, and I do
remember that the IPv6 multipath implementation was unstable for some
time in the Netlink API.

And that is the reason why we stopped supporting BIRD 1. We ourselves
can't keep track about everything here and there, and even though
Santiago has superhuman powers and remembers which part worked how even
in 1.3.0 … no, please. We actually do not know how much we have fixed in
BIRD 2 and ignored in BIRD 1. There is a lot of development passed by.

> Let me try to use another box that run bird 2 for testing as well.

Seriously. Do. Upgrade. Now. We announced the EOL for a reason. Tell
your manager that BIRD 1 is EOL. It is not OK to run it in production
now. You won't even get packages for new distros for BIRD 1.

Thank you for your understanding 
Maria

-- 
Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.
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