From: Maljure, Sanjay (smaljure@xxxxxxxxxxxxxxxxx)
Date: Sat Sep 23 2000 - 22:50:51 GMT-3
OSPF learns the RIP route as an external (Type-1 or Type-2) route
When u redistribute the OSPF route into BGP, u need to specify the "match
external..." keyword.
That is because when u redistribute OSPF in to BGP, OSPF won't redistribute
external routes by default. This is a mechanism built in to prevent loops
because the external routes may have been learnt from BGP itself.
Sanjay
-----Original Message-----
From: Konstantin Kostenko [mailto:konstantin.kostenko@worldnet.att.net]
Sent: Saturday, September 23, 2000 9:30 PM
To: Bell, Mark (Houston)
Cc: 'ccielab@groupstudy.com'
Subject: Re: redistribution question
"Bell, Mark (Houston)" wrote:
>
> I have a router running BGP, OSPF and RIP. I am redistributing RIP into
> OSPF and then OSPF into BGP. However, the RIP network is not showing up
in
> BGP. The other two networks that originate in OSPF are showing up. The
RIP
> route shows up in the OSPF database and another router that is in the same
> OSPF area, so I know the RIP-to-OSPF redistribution is fine.
>
> When I go to the other router that is in the same OSPF area and BGP AS and
> redistribute OSPF from there, the RIP route shows up in BGP. Attached are
> the relevant parts of the config and other information.
Mark, your route still appears in OSPF but not in BGP.
Try to change
redistribute ospf 200 match internal external 1 external 2
statement to
redistribute ospf 200 subnets
I think the problem is in the absence of "subnets" keyword.
> Why would BGP not be redistributing this route?
>
> ----------------------------------------------
> Kenneth Mark Bell, CCNP, NNCSE
> Network Engineer II m.bell@wilcom.com
> Williams Communications Solutions
> t: (713) 307-7254 p: (713) 912-2276
>
> ------------------------------------------------------------------------
>
> bgp_prob.txtName: bgp_prob.txt
> Type: Plain Text (text/plain)
-- Konstantin Kostenko. CCNP/CCDP. Network engineer. PLANNING TECHNOLOGIES, INC.
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