BGP route advertisement

[mainstreetexpress]

Hi
I have a BGP lab set up and it is happily working away

I am advertising 192.168.1.0/24 network via BGP to its neighbour who in turn is receiving this


router bgp 65101
no synchronization
network 192.168.1.0
neighbor 10.1.1.100 remote-as 65200

R2#sh ip bgp neighbors 10.1.1.100 advertised-routes
BGP table version is 60, local router ID is 192.168.1.49
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal
Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path
*> 192.168.1.0 0.0.0.0 0 32768 i


However if I put more /24 networks in and clear the BGP session, I can still only see the original network being advertised

router bgp 65101
no synchronization
network 192.168.1.0
network 192.168.2.0
network 192.168.3.0
network 192.168.4.0
network 192.168.5.0
neighbor 10.1.1.100 remote-as 65200

R2#sh ip bgp neighbors 10.1.1.100 advertised-routes
BGP table version is 60, local router ID is 192.168.1.49
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal
Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path
*> 192.168.1.0 0.0.0.0 0 32768 i


Does anyone know why this would be?

 

[lgarner]

Does your router actually have routes to those networks? Try creating static routes and adding "redistribute static" instead of listing the non-connected networks.

Lee.

 

[baddos]

You need to make sure that those routes are in the routing table before BGP will advertise them to any peers.

I.E. Add a "ip route 192.168.5.0 255.255.255.0 null0" static route for testing purposes.

 

[mainstreetexpress]

That did the trick

Cheers

Mark