[c-nsp] bgp route-map or prefix-list

[Wayne Lee]

Hello All

I've got a mini lab setup using dynamips so I can practice all
configs, I'm having a little trouble with my ACL's on BGP.
If I use a route-map I still get the routes I don't want (bogons) but
if I use the prefix-list the route-map calls it works as expected.


non-working :-(

neighbor 213.x.x.x remote-as 99999
neighbor 213.x.x.x description eBGP
neighbor 213.x.x.x route-map transit-in in
neighbor 213..x.x.x route-map announce out


Working :-)

neighbor 213.x.x.x remote-as 99999
neighbor 213.x.x.x description eBGP
neighbor 213.x.x.x prefix-list transit-in in
neighbor 213..x.x.x route-map announce out


route-maps and prefix-lists used on both configs

ip prefix-list announce description Our Allowed routing announcements
ip prefix-list announce seq 5 permit 8x.xxx.0.0/19
ip prefix-list announce seq 10 permit 8x.xxx.0.0/19
ip prefix-list announce seq 15 permit 2xx.xxx.0.0/20

ip prefix-list transit-in seq 1 deny 8x.xxx.x.0/19
ip prefix-list transit-in seq 2 deny 8x.xxx.0.0/19
ip prefix-list transit-in seq 3 deny 2xx.xxx.0.0/20
ip prefix-list transit-in seq 50 deny 0.0.0.0/8 le 32
ip prefix-list transit-in seq 51 deny 10.0.0.0/8
ip prefix-list transit-in seq 52 deny 127.0.0.0/8
ip prefix-list transit-in seq 53 deny 172.16.0.0/16
ip prefix-list transit-in seq 54 deny 192.168.0.0/16
ip prefix-list transit-in seq 100 permit 0.0.0.0/0 le 24
!
route-map announce permit 10
 match ip address prefix-list announce
!
route-map transit-in deny 5
 match ip address prefix-list transit-in
!
route-map transit-in permit 10
 set local-preference 100


The current working/live config is using standard access-lists but I
would like to migrate over to a route-map/prefix-list based setup


Thanks for your time

Wayne