And I think there will be no more updates:

https://bird.network.cz/?o_news

25.4.2023 BIRD 1 end of life will happen at the end of 2023. Please finish you upgrade to BIRD 2 ASAP!

On Thu, Feb 13, 2025 at 5:01 PM Douglas Fischer <fischerdouglas@gmail.com> wrote:

uuuhhh... 1.6?

This version has not been receiving updates for quite some time.
Definitely more than 5 years ago. And even before that, for a few years version 1.6 was only receiving fixes.

I suggest you consider migrating to the current version of Bird2, which if I'm not mistaken is 2.16.1

Em qui., 13 de fev. de 2025 às 00:08, Jimmy Lim <jhalim10@gmail.com> escreveu:

Hi guys,

I have multipath enabled on bird6 running in old 1.6.8. I discovered that the IPv6 prefix failed to be installed properly in the kernel with more than 1 path and when multipath is enabled.

syslog message:

Feb  9 23:54:31 x40-n bird6: kernel1 < replaced fcdf::/16 multipath
Feb  9 23:54:53 x40-n bird6: kernel1: fcdf::/16: reinstalling
Feb  9 23:55:53 x40-n bird6: kernel1: fcdf::/16: reinstalling
Feb  9 23:56:53 x40-n bird6: kernel1: fcdf::/16: reinstalling

The IPv6 prefix is installed properly if I remove multipath in bird6:

#    merge paths on;

But then it means the path won't be shared with the rest of the path. 

syslog message:

Feb  9 23:57:15 x40-n bird6: kernel1 < added fcdf::/16 dev wg2
Feb  9 23:57:15 x40-n bird6: kernel1: fcdf::/16: reinstalling
Feb  9 23:58:15 x40-n bird6: kernel1: fcdf::/16: seen
Feb  9 23:59:16 x40-n bird6: kernel1: fcdf::/16: seen

Do you guys encounter this issue or is there any other configuration needed? The multipath works well in IPv4/bird.

Thanks,

Jimmy 

--

Douglas Fernando Fischer
Engº de Controle e Automação