On a single router, I wish to import a summary route into another VRF and block all of the more specific routes.
I use the using the aggregate-address command which, as usual, generates a route with Null0 as next hop.
The other VRF then imports this route using an import-map which blocks all the more specific routes.
But traffic in the other VRF flowing towards destinations within the range of the summary gets sent to Null0 and lost.
The only solution to this would seem to be to generate the summary route on another router. This would mean that the summary route that gets imported would have a next hop address of the other router and the traffic would not get lost. The downside is that this would give rise to unnecessary additional hops.
Is there any way that the summary route can be generated on the same router that is doing the import/export?
