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New Member

Route Redistribution Problem

I have a strange problem with route resdistribution. I am running BGP as my egp and OSPF internally.

I have multiple sites all connected by BGP. I also have cisco ASA firewalls which connect to the network via OSPF.

The problem is that the firewalls are failing to route traffic to a site other than the one they are connected to. Route redistribution has been set up but doesn't appear to be working.

When viewing a route from one of the core switches we get the following report.

BRE-CABH-CORE01#sh ip route

Routing entry for

Known via "bgp 64550", distance 200, metric 5

Tag 64521, type internal

Redistributing via ospf 1

Last update from 1w2d ago

Routing Descriptor Blocks:

*, from, 1w2d ago

Route metric is 5, traffic share count is 1

AS Hops 4

Route tag 64521

Now reading this I would expect that an ospf node would see the route being advertised as an E2 route.

The problem is it doesn't appear (the ospf output is attached). I have also attached the routing code from the core for both OSPF and BGP and the firewall setup code as well.

I am slightly confused here...


Re: Route Redistribution Problem


I think you have the BGP command :-

bgp redistribute-internal missing

under your router bgp config

New Member

Re: Route Redistribution Problem

Thanks I will have a look at that and try it out of hours - possibly no risk to the network but would feel safer doing it then...

New Member

Re: Route Redistribution Problem

You are also missing the 'subnets' keyword on your BGP redistribution, this is required so allow classless networks through


Re: Route Redistribution Problem


Did this work ??

New Member

Re: Route Redistribution Problem

I am not able to test this yet. I can't get a change window until 6AM on Friday but will let you know once the code is in place.

New Member

Re: Route Redistribution Problem

In a word no.

Once the commands were loaded we had a routing loop in the network which killed all of the external sites via BGP as well. This was after I put a cost of 200 on the redistributed routes to try and keep the new data suppressed and not overriding the main routing table.

Having to rethink and replan this one now.