[c-nsp] bgp, new network not showing up 3750

info at beprojects.com info at beprojects.com
Thu Sep 22 21:51:36 EDT 2005


Add "ip route 204.xxx.132.0 255.255.252.0 Null0".  If the route isn't in 
the table, it won't be advertised.

Shaun wrote:
> I received a new allocation from arin, a /22 and today i went to add it to 
> my 3750.
> 
> I did the following....
> 
> router bgp xxxxxx
>  network 204.xxx.132.0 mask 255.255.252.0
> 
> ip prefix-list routes_to_upstream seq 10 permit 204.xxx.132.0/22 le 32
> 
> when i do a sh ip bgp i dont see the /22.  I though maybe it was because the 
> space had not been carved up and assigned to anything yet so i assigned a 
> /29 from it to a vlan.  Still doesnt show up.
> 
> Any idea whats going on here?
> 
> router bgp xxxxx
>  no synchronization
>  bgp log-neighbor-changes
>  network 204.xxx.36.0 mask 255.255.252.0
>  network 204.xxx.132.0 mask 255.255.252.0
>  neighbor xxxxxxx peer-group
>  neighbor xxxxxxx remote-as xxxx
>  neighbor xxxxxxx update-source FastEthernet1/0/1
>  neighbor xxxxxxx send-community
>  neighbor xxxxxxx soft-reconfiguration inbound
>  neighbor xxxxxxx prefix-list default_only in
>  neighbor xxxxxxx prefix-list routes_to_upstream out
>  neighbor 216.xxx.174.17 peer-group xxxxxxx
>  neighbor 216.xxx.174.18 peer-group xxxxxxx
>  no auto-summary
> !
> ip classless
> ip route 204.xxx.36.0 255.255.252.0 Null0
> !
> ip bgp-community new-format
> !
> ip prefix-list default_only seq 5 permit 0.0.0.0/0
> !
> ip prefix-list routes_to_upstream seq 5 permit 204.xxx.36.0/22 le 32
> ip prefix-list routes_to_upstream seq 10 permit 204.xxx.132.0/22 le 32
> 
> access1#sh ip bgp
> BGP table version is 69, local router ID is xxx.xxx.xxx.xxx
> Status codes: s suppressed, d damped, h history, * valid, > best, i - 
> internal,
>               r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
> 
>    Network          Next Hop            Metric LocPrf Weight Path
> *  0.0.0.0          216.xxx.174.17                          0 xxxx i
> *>                  216.xxx.174.18                          0 xxxx i
> *> 204.xxx.36.0/22   0.0.0.0                  0         32768 i
> 
> 
> Shaun R.
> 
> 
> 
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