BGP - Route Filters

Question

Hi 
 Just wondering if the XG supports BGP Route Filters. From what i am reading XG uses Quagga for & Quagga supports Route Filters. I just cant seem to find it in the XG. 
 I am simply trying to filter out the default route which is being advertised by BGP 
 Any suggestions would be appreciated. 
 
 Thanks 
 Adam

Kranthi · Accepted Answer

hey Adam, 
 
 We do support Route filter capabilities inside OSPF and BGP, i just came across this thread searching for something else, you can use prefix lists, access lists to filter routes both inbound and outbound on XG. Unfortunately this is not well documented with XG. but we will work on documenting more information on the router filtering. 
 
 just to give you an example, all the commands you need to build route filters are the same ones supported by quagga, which is closer to a cisco s implementation, so you pretty much can nearly copy paste the route filters from a cisco router to XG. 
 
 -Cheers, 
 Kranthi

Andrew Sweeney · Answer

I just had to work through this same issue with support last week. Frustrating Sophos doesn't have a document written for this.

For future reference:

from CLI option 3 -> 1 -> 3 to access the 'Configure BGP' Option

bgp> enable

bgp# configure terminal

bgp# ip prefix-list deny-route seq 5 deny 0.0.0.0/0

bgp# ip prefix-list deny-route seq 10 permit 0.0.0.0/0 le 32

bgp(config)# router bgp <LOCAL AS>

bgp(config-router)# neighbor <IP ADDRESS> prefix-list deny-route in

bgp(config-router)# exit

bgp(config)# exit

bgp# clear ip bgp <IP ADDRESS> soft in

bgp# write