Announce less specific prefix in routeserver environment for upstream purpose
stefan.jakob at de-cix.net
Fri Dec 16 14:14:48 CET 2011
Dear Bird Users,
I have the following setup:
Peer1 - AS65001
Peer2 - AS65002
RS - AS65123
GW - AS65123
All are connected via a layer 2 infrastructure and share next hop
addresses out of a /22. This /22 is part of a /20.
RS works as a routeserver with "rs client" in the protocol definition of
My goal is, to announce the /20 over GW to the routeservers GW hasn't
the "rs client" option set but "gateway direct".
To solve the iBGP and empty AS path of GW, I want to prepend AS65123 for
all GW incoming prefixes, so that the as path isn't empty.
Do you expect this as a working design to announce the /20 from GW via
RS to the peers?
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