BIRD removing BGP routes from other daemon - FreeBSD

[Ondrej Zajicek]

On Thu, Jun 18, 2015 at 05:14:41PM -0300, Cassiano Peixoto wrote:
> Hello,
> 
> I have a particular scenario where my BGP runs with OpenBGP and I can not
> change it right now.
> 
> However I want BIRD to use OSPF and BFD. While BIRD works perfectly, better
> than OpenOSPF for my scenario, when I start it, it completely removes all
> routes installed by OpenBGP.

Hello

On BSD systems, BIRD uses PROTO1 route flag to identify 'its' routes. If
OpenBGP uses the same flag, then they mix-up their routes. Currently
there is no option in BIRD to change it to use PROTO2 or PROTO3 flag [*],
i don't know about OpenBGP. I wonder if there is a better way to
distinguish route ownership in BSD systems (like there is u8 rtm_protocol
field in Linux).


[*] Could be changed in the source code on these lines in
sysdep/bsd/krt-sock.c:

msg.rtm.rtm_flags = RTF_UP | RTF_PROTO1;
...
u32 self_mask = RTF_PROTO1;


-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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