bird 2.0.8 ignores local routes during import?

[Tim Meusel]

After some digging it was kinda obvious, I copied the config from 
another host where the interface was named `uplink` but on this node 
it's enp3s0 so `protocol direct` didn't import any routes.


On 10.08.21 13:08, Tim Meusel wrote:
> Hi,
> I'm running bird 2.0.8 on Arch Linux:
> 
> I would like to import local device routes and export them via BGP. My 
> assumption is that the direct protocol would be required here? My config 
> looks like this:
> 
> router id 192.168.178.35;
> debug protocols all;
> log syslog { debug, trace, info, remote, warning, error, auth, fatal, 
> bug };
> timeformat protocol iso long;
> protocol device {
>    scan time 10;
>    interface "uplink" {
>      preferred 192.168.178.35;
>    };
> }
> protocol kernel kernelv4 {
>    learn;
>    persist;
>      scan time 20;
> 
>      ipv4 {
>          import all;
>          export filter {
>              if source = RTS_STATIC then reject;
>              krt_prefsrc = OWNIP;
>              accept;
>          };
>      };
> }
> protocol direct {
>    ipv4;
>    ipv6;
>    interface "uplink";
> }
> 
> The box has a few local routes:
> # ip -4 r s
> default via 192.168.178.1 dev enp3s0 proto dhcp src 192.168.178.35 
> metric 1024
> 169.254.0.7 dev as3668-1 proto kernel scope link src 169.254.0.8
> 169.254.0.9 dev as3668-2 proto kernel scope link src 169.254.0.10
> 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
> 192.168.178.0/24 dev enp3s0 proto kernel scope link src 192.168.178.35 
> metric 1024
> 192.168.178.1 dev enp3s0 proto dhcp scope link src 192.168.178.35 metric 
> 1024
> 
> But it looks like the direct protocol doesn't import any routes and via 
> the kernel I don't get theh route for 192.168.178.0/24?
> 
> root at server ~ # birdc show route protocol device1
> BIRD 2.0.8 ready.
> No valid tables
> root at server ~ # birdc show route protocol kernelv4
> BIRD 2.0.8 ready.
> Table master4:
> 0.0.0.0/0            unicast [kernelv4 2021-08-08] * (10)
>      via 192.168.178.1 on enp3s0
> 192.168.178.1/32     unicast [kernelv4 2021-08-08] * (10)
>      dev enp3s0
> root at server ~ #
> 
> any clues why I don't see see "192.168.178.0/24 dev enp3s0" route in bird?
> 
> Cheers, Tim