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MPLS problem..

matthew.scala
Level 1
Level 1

I am new to MPLS. I have 2 6500's connected to each other running OSPF & BGP. I really do not know how to describe the exact problem I'm having in details.. so I will be brief. When I do a show ip route vrf aois on the 1st 6500, the default route states that it will forward traffic to 172.30.99.99, which is one of it's loopback addresses (loopback17230).. but performing a show ip route vrf aois on the second 6500 shows that the default route will send traffic to 100.1.1.1, which is the 1st 6500's OSPF router-id (loopback0's address.) Obviously, this is a problem. Why is it doing this? Any ideas? I realize more information is needed.. but I'd rather not disclose entire configurations on here. Thanks in advance.

- Matt

5 Replies 5

tekha
Level 3
Level 3

On the 2nd 6500, is the default route known via OSPF?

And on the 1st 6500 is it known as a static route?

And what is the adminstrative distance?

My guess is that you have this on the 1st 6500:

ip route vrf aois 0.0.0.0 0.0.0.0 172.30.99.99

Is that correct?

You are correct for the most part. Except.. the default route is being learned through BGP. But here is basically the problem I'm having. I am redistributing that static route from the 1st 6500 to the 2nd 6500 through iBGP. What I need to happen is for iBGP instead of using the 100.1.1.1 as it's default route for this specific VRF, I need it to use the redistributed static route from the 1st 6500. Do you understand where I'm going with this?

- Matt

If you type "sh ip bgp neigh" on the 2nd 6500, does it say "BGP neighbor is 100.1.1.1," or something completly different?

Perhaps 100.1.1.1 is just the "remote router id".

I understand that because of security resons, you can't post you configuration. But I take it you are redistributing OSPF, BGP and static routes into each other, and that might be where the problem is.

Do you have an instant messenger or private email I can contact you by?

- Matt

Hmm, yeah sure, mail me at tekha@webspeed.dk.