I might have a strange question: is it possible to selectively redistribute into an area when your router has multiple areas ?? Let me explain: we have a NSSA area composed of 4 routers: lets say routers A and B connect to the backbone area 0.0.0.0, router C & D have a RIP/static/EIGRP connection and redistribute some (very limited) routes into the NSSA (hence NSSA). However, recently we have started to deploy BGP additionally on our core routers A and B. They receive BGP routes and redistribute them into the backbone. However, by default, they ALSO push (all) these routes into the NSSA area, which i in fact don't want and which is not needed (since A & B already put a default into the NSSA area by design). Is there a way to prevent this from happening ?