Since you are using AS 200 as the in-between, we need the config on R10
also.  In addition, then display of "show ip bgp neig sum" command on each
router will also be helpful.

Derek

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Annu
Roopa
Sent: Thursday, June 27, 2002 4:23 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: BGP Question

Group,

Here is a BGP scenario whic is troubling me. what am i
doing wrong ? The scenario is about BGP backdoor and
it looks like this.

        eBGP             eBGP
       172.16.1.0      10.1.1.0
  R2-------------R10---------------r12--175.10.10.1
  |                                 |
  |---------------------------------

             192.168.1.0 IGRP

The configs look as below. even thought i configure
BGP backdoor the path taken is thru the EBGP link ?


hostname R12
ip address 175.10.10.1 255.255.0.0
!
interface Serial0
ip address 10.1.1.2 255.255.255.0
no fair-queue
!
interface Serial1
ip address 192.168.1.2 255.255.255.0
!
router igrp 100
network 175.10.0.0
network 192.168.1.0
!
router bgp 300
bgp router-id 175.10.10.1
bgp log-neighbor-changes
network 10.1.1.0 mask 255.255.255.0
network 175.10.0.0
neighbor 10.1.1.1 remote-as 200
no auto-summary

------
hostname R2
interface Loopback0
ip address 190.10.10.1 255.255.255.0
!
interface Serial0
ip address 172.16.1.1 255.255.255.0
!
interface Serial1
ip address 192.168.1.1 255.255.255.0
clockrate 64000
!
router igrp 100
network 192.168.1.0
!
router bgp 400
bgp log-neighbor-changes
network 175.10.0.0 backdoor
network 190.10.10.0 mask 255.255.255.0
network 190.10.10.0
network 192.168.1.0
neighbor 172.16.1.2 remote-as 200

------
R2#show ip route
C       190.10.10.0 is directly connected, Loopback0
B    175.10.0.0/16 [20/0] via 172.16.1.2, 00:05:45
C    192.168.1.0/24 is directly connected, Serial1
B    200.10.10.0/24 [20/0] via 172.16.1.2, 00:00:43
     180.10.0.0/24 is subnetted, 1 subnets
B       180.10.10.0 [20/0] via 172.16.1.2, 00:05:46

R2#show ip bgp
BGP table version is 120, local router ID is
190.10.10.1
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
*> 175.10.0.0   172.16.1.2             0 200 300 i
*> 180.10.10.0/24   172.16.1.0         0 200 i
*> 190.10.10.0/24   0.0.0.0                  0
32768 i
*> 192.168.1.0      0.0.0.0                  0
32768 i

Thanks in advance.


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