Go CCIE Go!! - A Cisco Certified Internetwork Expert

HI,
To do this I think you should look at the neighbor x advertise-map command: http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hirp_r/rte_bgh2.htm#wp1071377
You have two options: exist-map and non-exist-map. With the exist-map, you create a route-map and if you have a hit, the advertise-map route-map is used to generate a route to advertise. The non-exist-map will cause the route to be advertised as long as you don’t get hits.

— pankaj kumar wrote:
route-map addroute match ip add prefix-list pladdroute
ip prefix-list pladdroute permit 172.10.24.0/27 ip prefix-list plroute-alive permit 10.1.1.0/24 route-map route-alive match ip add prefix-list plroute-alive
1)neighbor R2 advertise-map addroute non-exist-map route-alive 2)neighbor R2 advertise-map addroute non-exist-map route-alive
I think 1 & 2 are saying the samething
dt

> > Pls help me to come out. > > 2 Routers R1 & R2 is assoicationg IBGP > connections together. R1 is also EBGP with 1 > backbone. NOW The secanrio > > 1) R1 > should not advertise 172.10.24.0/27 to R2 IF > 10.1.1.0/24 route is persent R1 > BGP table. > > 2) R1 should only advertise the 172.10.24.0/27 route > to R2 if > 10.1.1.0/24 is not persent in R1 BGP table > > Waiting for ur replies.. > > Thanks > & Regards > Pankaj Kumar > >