From: Mike Flanagan (mikenoc@mindspring.com)
Date: Tue Oct 12 2004 - 14:10:58 GMT-3
Hello,
In this task you are supposed to ensure that AS 100 traverse
The peering between SW2 and R5 for prefix 150.1.11.0/24. To do this you need
to use a route map on SW2 and R2 and set MED for this prefix to prefer
The peering between SW2 and R5. When I tried doing this config it is setting
the MED for all prefixes orginating in AS 100 not just the 150.1.11.0/24.
Can someone please help me understand why this is doing this and what I need
to change to get this to work.
Thanks in advance,
Mike F.
SW2
router bgp 200
no synchronization
bgp router-id 150.1.8.8
bgp log-neighbor-changes
neighbor 183.1.58.5 remote-as 100
neighbor 183.1.58.5 route-map MEDOUT out
ip prefix-list MED200 seq 5 permit 150.1.11.0/24
route-map MEDOUT permit 10
match ip address MED200
set metric 100
!
route-map MEDOUT permit 20
!
R2
router bgp 200
no synchronization
bgp router-id 150.1.2.2
bgp log-neighbor-changes
neighbor 183.1.123.1 remote-as 200
neighbor 183.1.123.3 remote-as 100
neighbor 183.1.123.3 route-map MEDOUT out
no auto-summary
!
ip prefix-list MED200 seq 5 permit 150.1.11.0/24
!
!
route-map MEDOUT permit 10
match ip address MED200
set metric 200
!
route-map MEDOUT permit 20
!
Rack1R3#sh ip bgp
BGP table version is 47, local router ID is 150.1.3.3
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
*>i28.119.16.0/24 54.1.1.254 0 120 0 54 i
* 204.12.1.254 0 0 54 i
*>i28.119.17.0/24 54.1.1.254 0 120 0 54 i
* 204.12.1.254 0 0 54 i
* i112.0.0.0 54.1.1.254 0 100 0 54 50 60 i
*> 204.12.1.254 0 54 50 60 i
* i113.0.0.0 54.1.1.254 0 100 0 54 50 60 i
*> 204.12.1.254 0 54 50 60 i
*>i114.0.0.0 54.1.1.254 0 120 0 54 i
* 204.12.1.254 0 54 i
*>i115.0.0.0 54.1.1.254 0 120 0 54 i
* 204.12.1.254 0 54 i
*>i116.0.0.0 54.1.1.254 0 120 0 54 i
* 204.12.1.254 0 54 i
*>i117.0.0.0 54.1.1.254 0 120 0 54 i
* 204.12.1.254 0 54 i
*>i118.0.0.0 54.1.1.254 0 120 0 54 i
Network Next Hop Metric LocPrf Weight Path
* 204.12.1.254 0 54 i
*>i119.0.0.0 54.1.1.254 0 120 0 54 i
* 204.12.1.254 0 54 i
*>i150.1.11.0/24 183.1.58.8 100 100 0 200 i
* 183.1.123.1 200 0 200 i
*>i205.90.31.0 183.1.58.8 100 100 0 200 254 ?
* 183.1.123.1 200 0 200 254 ?
*>i220.20.3.0 183.1.58.8 100 100 0 200 254 ?
* 183.1.123.1 200 0 200 254 ?
*>i222.22.2.0 183.1.58.8 100 100 0 200 254 ?
* 183.1.123.1 200 0 200 254 ?
Rack1R3#
Rack1R5#sh ip bgp
BGP table version is 43, local router ID is 150.1.5.5
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
*>i28.119.16.0/24 54.1.1.254 0 120 0 54 i
*>i28.119.17.0/24 54.1.1.254 0 120 0 54 i
* i112.0.0.0 204.12.1.254 0 100 0 54 50 60 i
*>i 54.1.1.254 0 100 0 54 50 60 i
* i113.0.0.0 204.12.1.254 0 100 0 54 50 60 i
*>i 54.1.1.254 0 100 0 54 50 60 i
*>i114.0.0.0 54.1.1.254 0 120 0 54 i
*>i115.0.0.0 54.1.1.254 0 120 0 54 i
*>i116.0.0.0 54.1.1.254 0 120 0 54 i
*>i117.0.0.0 54.1.1.254 0 120 0 54 i
*>i118.0.0.0 54.1.1.254 0 120 0 54 i
*>i119.0.0.0 54.1.1.254 0 120 0 54 i
*> 150.1.11.0/24 183.1.58.8 100 0 200 i
*> 205.90.31.0 183.1.58.8 100 0 200 254 ?
*> 220.20.3.0 183.1.58.8 100 0 200 254 ?
*> 222.22.2.0 183.1.58.8 100 0 200 254 ?
Rack1R5#
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