From: Logan, Harold (loganh@mccfl.edu)
Date: Mon Apr 21 2003 - 21:47:15 GMT-3
Alec,
It has to do with OSPF operation. OSPF doesn't advertise routes, it advertises link states. Every OSPF router in the same area is aware of all of the networks in that area, so there is no way to filter outgoing updates with the distribute-list command. You can however use the distribute-list in command to prevent a route in the SPF database from showing up in the router's routing table. That only affects that one router though; all other routers in the area will learn the route.
If you want to filter LSA's with OSPF, check out the ip ospf database-filter command.
hth,
Hal Logan
CCAI, CCDP, CCNP: Voice
Network Specialist / Adjunct Faculty
Computing & Engineering Technology
Manatee Community College
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Alec Pun
> Sent: Monday, April 21, 2003 12:43 PM
> To: 'CCIE LAB (E-mail)'
> Cc: alec.cl.pun@pccw.com
> Subject: Distribute-list OUT for OSPF
>
>
> Dear group,
>
> Would you mind to explain why distribute-list OUT can not be
> applied for
> OSPF? I've heard of some sayings related to OSPF link-state
> behaviour but
> still can't understand. Thanks! - alec
>
> 1601A(config)#router ospf 1
> 1601A(config-router)#distribute-list 1 out e0
> % Interface not allowed with OUT for OSPF
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