http://www.cisco.com/warp/public/459/bgp-toc.html In Cisco IOSĀ® Software releases earlier than Cisco IOS Software Release 11.2, when you use route maps to filter BGP updates rather than redistribute between protocols, you cannot filter on the inbound when you use a match command on the IP address. A filter on the outbound is acceptable. Cisco IOS Software Release 11.2 and later releases do not have this restriction. The related commands for match are: match as-path match community match clns match interface match ip address match ip next-hop match ip route-source match metric match route-type match tag The related commands for set are: set as-path set clns set automatic-tag set community set interface set default interface set ip default next-hop set level set local-preference set metric set metric-type set next-hop set origin set tag set weight Look at some route map examples: