export filter that checks for existance of another route?

Ondrej Zajicek santiago at crfreenet.org
Tue Sep 2 13:44:59 CEST 2014


On Sat, Aug 30, 2014 at 12:13:30AM +1000, Paul J R wrote:
> Hi All,
> 
> First time post, i've been playing with bird for some time, but there is one
> thing i cant figure out how to do and that is use the existence of a
> specific route as part of a filter.
> 
> for example, if the filter is processing a route to 4.3.2.0/24, check if a
> route to 1.2.3.4/32 (exact) exists, if so then accept, otherwise reject. Is
> this something that is possible? or do route filters only have the ability
> to check against the information thats sent to the filter itself?

It is not possible, for several reasons filters could only check each
route independently.

-- 
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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