On Nov 25, 2015, at 12:42 AM, Doug McIntyre <[log in to unmask]> wrote:

If you want to supply BIRD magic to do that, it would be appreciated.

Check these functions (bgp_out_comm and bgp_out) out here:

That seems like it would work in this specific case, along with extended community support for the 32-bit ASNs.

Announce a route only to a certain peer: 53679:<peer-asn>

Announce a route to all peers: 53679:53679

Block announcement of a route to a certain peer: 0:<peer-asn>

Block announcement of a route to all peers: 0:53679

I’d be happy to be a guinea pig, or help implement.

I’m not sure of the current RS config, but I’d imagine this would be easily adaptable into the current config.

There are also some examples there of enforcing first ASN and filtering RFC1918 junk, which if we’re not already doing, might be wise.

Thanks,

Andrew