From: Nigel Taylor (nigel_taylor@xxxxxxxxxxx)
Date: Sun Feb 25 2001 - 08:25:31 GMT-3
All,
I just got done working through lab 325 - Adv BGP Routing and I was =
hoping someone could tell me if I'm missing something or =
misunderstanding the requirements for task (11) eleven. The =
requirements calls for the implementation of communitites attribute to =
dynamically limit the advertisment of an external learned network route =
from AS300 to AS100. In doing so I accomplished this with the use of =
applying the following configuration commands. In the fatkid solution =
they make use of the command "send-community" on every bgp peer =
connection. Based on the requirements I don't think this necessary? =
Anyone did this lab and had the same questions or thoughts..
Nigel.
R2:
router bgp 200
bgp router-id 190.19.15.145
redistribute eigrp 200 route-map localnet
neighbor 190.19.15.177 remote-as 200
neighbor 190.19.15.177 update-source Loopback0
neighbor 190.19.15.177 send-community
neighbor 190.19.15.177 route-map setcom out
neighbor 210.10.10.5 remote-as 300
neighbor 210.10.10.5 weight 450
no auto-summary
!
ip classless
!
dialer-list 1 protocol ip permit
route-map setcom permit 10
set community no-export
R3:
router bgp 200
bgp router-id 190.19.15.161
redistribute eigrp 200 route-map localnet
neighbor 190.19.15.177 remote-as 200
neighbor 190.19.15.177 update-source Loopback0
neighbor 190.19.15.177 send-community
neighbor 190.19.15.177 route-map setcom out
neighbor 210.10.10.1 remote-as 300
no auto-summary
!
ip classless
!
dialer-list 1 protocol ip permit
route-map setcom permit 10
set community no-export
R4:
router bgp 200
bgp router-id 190.19.15.177
bgp log-neighbor-changes
redistribute eigrp 200 route-map localnet
neighbor 190.19.15.145 remote-as 200
neighbor 190.19.15.145 update-source Loopback0
neighbor 190.19.15.145 route-reflector-client
neighbor 190.19.15.161 remote-as 200
neighbor 190.19.15.161 update-source Loopback0
neighbor 190.19.15.161 route-reflector-client
neighbor 192.19.15.1 remote-as 100
neighbor 192.19.15.1 route-map weight250 in
no auto-summary
R4#sh ip bgp
BGP table version is 25, local router ID is 190.19.15.177
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
*> 20.1.1.0/24 192.19.15.1 0 250 100 i
*> 22.1.1.0/24 192.19.15.1 0 250 100 i
*> 24.1.1.0/24 192.19.15.1 0 250 100 i
* i190.1.0.0 210.10.10.1 0 100 0 300 i
*>i 210.10.10.5 0 100 0 300 i
*> 190.19.15.0/26 0.0.0.0 0 32768 ?
* i 190.19.15.161 0 100 0 ?
*> 190.19.15.64/26 0.0.0.0 0 32768 ?
* i 190.19.15.145 0 100 0 ?
*> 190.19.15.128/28 190.19.15.66 40537600 32768 ?
* i 190.19.15.161 0 100 0 ?
* i 190.19.15.145 0 100 0 ?
*> 190.19.15.129/32 190.19.15.2 40537600 32768 ?
* i 190.19.15.161 0 100 0 ?
*> 190.19.15.130/32 190.19.15.66 40537600 32768 ?
* i 190.19.15.145 0 100 0 ?
*> 190.19.15.144/28 190.19.15.66 409600 32768 ?
* i 190.19.15.145 0 100 0 ?
Network Next Hop Metric LocPrf Weight Path
*> 190.19.15.160/28 190.19.15.2 409600 32768 ?
* i 190.19.15.161 0 100 0 ?
*> 190.19.15.176/28 0.0.0.0 0 32768 ?
*> 192.19.15.0 0.0.0.0 0 32768 ?
*> 210.10.10.0/30 190.19.15.2 2195456 32768 ?
* i 190.19.15.161 0 100 0 ?
*> 210.10.10.4/30 190.19.15.66 2195456 32768 ?
* i 190.19.15.145 0 100 0 ?
r3_14#
r4#sh ip bgp 190.1.0.0=20
BGP routing table entry for 190.1.0.0/16, version 2
Paths: (2 available, best #2, table Default-IP-Routing-Table, not =
advertised to EBGP peer)
Advertised to non peer-group peers:
190.19.15.161=20
300, (Received from a RR-client)
210.10.10.1 (metric 2195456) from 190.19.15.161 (190.19.15.161)
Origin IGP, metric 0, localpref 100, valid, internal, synchronized
Community: no-export
300, (Received from a RR-client)
210.10.10.5 (metric 2195456) from 190.19.15.145 (190.19.15.145)
Origin IGP, metric 0, localpref 100, valid, internal, =
synchronized, best
Community: no-export
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:00 GMT-3