what seems to happen is that the address 10.20.30.0/28 is still coming in when i run the "show bgp all nei 192.168.1.1 received-routes" command but compared to all the othe incoming prefixes, doesnt seemed to be marked with community 1:10.
How do i block this one prefix from coming into my router completely?
the "show bpg all neighbor x.x.x.x received-routes" command shows you all incoming routes prior to applying the route map.
You need to view the actual route table to ensure that the route is not installed. so you may see this:
ROUTER#show ip bgp vpnv4 vrf BOB 10.20.30.0 BGP routing table entry for 64xx1:10.20.30.0/28, version 2657 Paths: (2 available, no best path) Not advertised to any peer 64xx2, (received-only) 192.168.1.x from 192.168.1.x Origin incomplete, metric 1, localpref 100, valid, external 64xx2, (received-only) 192.168.1.x from 192.168.1.x Origin incomplete, metric 1, localpref 100, valid, external
This command seems to display the entire BGP database. You will notice that the entry of the route im blocking only appears to show (received only). This tells us that the route is received but was not installed due to my route map deny. All other routes not matching were successfully installed with the correct community set. So all is good again.
To see if the route is installed, always best to you the show ip route command.
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