[c-nsp] prevent route entering fib

[Erik Klaassen]

I have a fastnetmon/exabgp instance to inject routes into the border router(7600 / 720-3b-xl) to trigger remote blackholing. 
Triggering a blackhole null route is easy. But now i want to implement selective blackholing (my upstream supports this) 
The key thing is not to null route in your own network. 
What is the best way to prevent the exabgp route entering the fib? I tried selective download ( table-map ROUTE-MAP filter), but as soon as i apply a route-map on the exabgp neighbor the table-map filter doesnt work anymore. I hope you have some suggestions. 

Erik