Hello Im new in this list so excuse me if this is a known problem... Im trying to no readvertise the RIP prefixes that i learnt from a interface to another, but im unable to block these advertisments. I had already tried to block the prefixes with others source-address but it appears to not work in out policies the other thing that i tried was to send only the local prefixes but im not found how to make such a filter. i wolud apreciate any help in this subject... thanks in advace Sergio Sorry for my english