[c-nsp] How to set BGP commun. to none then to a value

[Rob Evans]

> We are doing peering to a neighbor ISP, we would like to secure
> ourselves and null any communities coming from them, but then we want
> to set a specific community on their routes to match it all over our
> AS and use it for filters, can this be done in a signle route-map?

Have you tried it and run into a problem?

"set community <foo>" should do what you want.  If you need to leave
the existing communities on, you need to do "set community <foo>
additive".

Rob