Problem getting FRR to filter routes as expected
joshuaitguy last edited by
So I've been banging my head against the wall the last few days trying to figure out how to get incoming BGP routes to be filtered out by FRR.
I've configured a prefix list & route map and linked it to the neighbor, with the route map in place and matching against the prefix list I don't get any routes from the peer even though the one route I expect to see falls in one of the ranges specified in the prefix list.
Below is the relevant sections of the config file showing what I've done. Any suggestions or pointers would be much appreciated. The documentation on frrouting.org hasn't been any help unfortunately and neither has any of the searches I've done on the Internet.
Snippit from Zebra.conf
ip prefix-list RFC1918 seq 5 permit 10.0.0.0/8 ge 21 le 24 ip prefix-list RFC1918 seq 10 permit 172.16.0.0/12 ge 21 le 24 ip prefix-list RFC1918 seq 15 permit 192.168.0.0/16 ge 21 le 24 ip prefix-list RFC1918 description Permite Addresses defined by RFC1918 ! Route Maps route-map DefaultInBound permit 5 match ip address prefix-list RFC1918 on-match next route-map DefaultInBound permit 10 set origin egp
Snippit from bgpd.conf
! BGP Neighbors neighbor 10.255.0.2 neighbor 10.255.0.2 remote-as XXXXX neighbor 10.255.0.2 update-source XXX.XXX.XXX.XXX no neighbor 10.255.0.2 send-community neighbor 10.255.0.2 soft-reconfiguration inbound neighbor 10.255.0.2 route-map DefaultInBound in neighbor 10.255.0.2 advertisement-interval 5 neighbor 10.255.0.2 capability dynamic neighbor 10.255.0.2 maximum-prefix 10 80
Note: This config is being managed through the "Raw Config" section of FRR settings.