On May 5, 2020 1:04:37 AM GMT+02:00, Ondrej Zajicek <santiago@crfreenet.org> wrote:

On Mon, May 04, 2020 at 11:34:38AM -0700, David Haupt wrote:
Hi

First time user of bird here so please be gentle. :)
I am trying to use bird for a project and I'd like to use it for creating
separate routing tables in linux.

..

[root@host1 etc]# ip link add mylink type dummy
[root@host1 etc]# ip link set mylink up
[root@host1 etc]# ip route add 10.0.2.3/32 dev mylink
[root@host1 etc]# systemctl restart bird
[root@host1 etc]# ip r
default via 172.29.0.1 dev eth1
10.0.2.3 dev mylink scope link
172.29.0.0/25 dev eth1 proto kernel scope link src 172.29.0.20
172.30.2.0/25 dev eth0 proto kernel scope link src 172.30.2.20
[root@host1 etc]# ip r show table 100
default via 172.29.0.1 dev eth1 proto bird

Is there any way that I can have the 10.0.2.3/32 route show up in kernel
table 100?

Hi

You should check 'birdc show route' and 'birdc show route table extra' to
see where on the path bird lost it. Also, you do not need restart bird
after adding the route.

But i think that in BIRD 1.6.x there is special exception for device
routes (i.e. routes without gateway address) so they are not exported to
kernel, you need to use 'device routes' option for the second kernel
protocol:

https://bird.network.cz/?get_doc&v=16&f=bird-6.html#krt-device-routes