On Thu, Jun 10, 2010 at 08:21:02AM +0200, Arjan Filius wrote:

Hello bird-users,

i'm trying to make a bgp_out filter statement which allows only it's own AS or multiple time's it's own AS.

tried: define AS = YYY; if ( (bgp_path ~ [= AS =] || bgp_path ~ [= AS AS =] ) && net = X.X.X.X/X ) then accept;

which works fine, but if not very elegant/flexible

Is there a better/more elegant way to do so?

Probably no. You can test just first and last item in bgp_path as valid paths should not contain several instances of one ASN separated by a different ASN, but this is not enforced. -- Elen sila lumenn' omentielvo Ondrej 'SanTiago' Zajicek (email: santiago@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."