On Mon, Oct 04, 2010 at 02:20:55PM -0300, Eduardo Meyer wrote:
quoted text
> Hello,
> 
> I want to selectively announce what I get from my peers (whom I am
> transit for) for a certain upstream peer. I decided to use community
> to do so, like that:
> 
> # Add what I get from my transit peers to communyt $myasn:1010
> match from $peer_t1 set community $myasn:1010
> match from $peer_t2 set community $myasn:1010
> 
> # Selectively announce it to by upstream peer number 2
> deny to $peer_up2
> allow to $peer_up2 community $myasn:1010
> 
> But it did not work.
> 
> I dont want to manually declare the networks I get, and my upstream
> wont allow me to "announce all".
> 
> What is wrong with the above OpenBGP rules?
> 

You need to set the announce type to "all" which means process all entries
in the RIB with the outbound filterset. Announce "self" which is the
default for eBGP sessions will block all non empty as pathes before
passing the prefix to the outbound filtering. As soon as you do tranist
you need "announce all" plus correct filters.

-- 
:wq Claudio