From: Mohamed Tandou (dtandou@gmail.com)
Date: Sat Sep 27 2008 - 19:36:45 ART
GS,
i want to use prefix-list to filter the following network 200.20.5.0 and
200.20.6.0 from my neighbor
this is how it looks before i applied filtering
R4#sh ip bgp
BGP table version is 80, local router ID is 11.11.4.4
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
*> 150.3.11.0/24 0.0.0.0 0 32768 i
*> 192.168.100.254/32
11.11.5.5 0 100 0 (4002) 21 111 i
*> 198.18.1.0 150.3.11.254 0 0 254 i
*> 200.20.1.0 150.3.11.254 0 0 254 i
*> 200.20.2.0 150.3.11.254 0 0 254 i
*> 200.20.3.0 150.3.11.254 0 0 254 i
*> 200.20.4.0 150.3.11.254 0 0 254 i
*> 200.20.5.0 150.3.11.254 0 0 254 i
*> 200.20.6.0 150.3.11.254 0 0 254 i
*> 200.20.7.0 150.3.11.254 0 0 254 i
*> 200.20.8.0 150.3.11.254 0 0 254 i
*> 200.20.9.0 150.3.11.254 0 0 254 i
*> 200.20.10.0 150.3.11.254 0 0 254 i
When i configured filtering everything is being denied.
router bgp 4001
no synchronization
bgp router-id 11.11.4.4
bgp log-neighbor-changes
neighbor 150.3.11.254 remote-as 254
neighbor 150.3.11.254 prefix-list ABC in
no auto-summary
ip prefix-list ABC seq 5 deny 200.20.4.0/22
R4#sh ip bgp
BGP table version is 91, local router ID is 11.11.4.4
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
*> 150.3.11.0/24 0.0.0.0 0 32768 i
*> 192.168.100.254/32
11.11.5.5 0 100 0 (4002) 21 111 i
Thanks
Moh
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This archive was generated by hypermail 2.1.4 : Sat Oct 04 2008 - 09:26:20 ART