From: Larry Cain (l_u_cain@hotmail.com)
Date: Mon Aug 18 2003 - 13:34:07 GMT-3
Hi Group
Have got a BGP route flapping route problem.
R1 and R2 talking OSPF. R2 and R3 talking eigrp. They are redistributing
both ways.
IGP routing tables are correct on R1 and R3 - seeing all networks including
remote e0 networks.
R1 and R2 in same AS 65100. R3 in AS 65200.
Only Loopbacks put into BGP.
|--e0--R1----s0----R2----s1----R3--e0--|
---------OSPF--------|---------eigrp--------
|------bgp65100------| |--bgp65200--|
The BGP routes from other AS (loopbacks) are in the table for 60s with *>,
then 60s with only > on both R2 and R3.
R1 only sees R3 loop when R2 has *> (obviously).
As I say this happens every minute.
Please help!!!!
Configs below:
All the best
Larry
ROUTER R1
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface Ethernet0
ip address 10.1.1.1 255.255.255.0
!
interface Serial0
ip address 10.1.2.1 255.255.255.0
!
router ospf 1
network 1.1.1.0 0.0.0.255 area 0
network 10.0.0.0 255.0.0.0 area 0
!
router bgp 65100
network 1.1.1.0 mask 255.255.255.0
neighbor 2.2.2.2 remote-as 65100
no auto-summary
!
ROUTER R2
interface Loopback0
ip address 2.2.2.2 255.255.255.0
!
interface Serial0
ip address 10.1.2.2 255.255.255.0
!
interface Serial1
ip address 10.1.3.2 255.255.255.0
!
router ospf 1
redistribute eigrp 1 metric 5 subnets
network 2.2.2.0 0.0.0.255 area 0
network 10.1.2.0 0.0.0.255 area 0
!
router eigrp 1
redistribute ospf 1 metric 1 1 1 1 1
network 10.1.3.0 0.0.0.255
!
router bgp 65100
network 2.2.2.0 mask 255.255.255.0
neighbor 1.1.1.1 remote-as 65100
neighbor 3.3.3.3 remote-as 65200
no auto-summary
!
ROUTER R3
interface Loopback0
ip address 3.3.3.3 255.255.255.0
!
interface Ethernet0
ip address 10.1.4.3 255.255.255.0
!
interface Serial1
ip address 10.1.3.3 255.255.255.0
!
router eigrp 1
redistribute ospf 1 metric 1 1 1 1 1
network 10.1.3.0 0.0.0.255
network 10.1.4.0 0.0.0.255
no auto-summary
!
router bgp 65200
network 3.3.3.0 mask 255.255.255.0
neighbor 2.2.2.2 remote-as 65100
no auto-summary
!
This archive was generated by hypermail 2.1.4 : Tue Sep 02 2003 - 18:54:01 GMT-3