wiki/howto/bird.md

Bird is a commonly used BGP daemon. This page provides configuration and help to run Bird for dn42.

Simplest configuration possible

TODO

Source address selection

Bird, like any other routing daemon, inserts routes into the kernel. If you don't specify a source address on the kernel routes, then the kernel will choose for you (and will often choose an address in a transfer subnet, which is not what you want).

To specify the source address, you use the krt_prefsrc attribute, for instance in the export filter of the kernel protocol:

protocol kernel {
   export filter {
           krt_prefsrc = 2001:db8:42::1;
           accept;
   };
}

(this also works for IPv4)

Example advanced configurations

Paste your own config template here.

External links

http://danrimal.net/doku.php?id=wiki:bgp:bird:sample_configs2