From: Navin Jassi (nav_uk@hotmail.com)
Date: Fri Feb 21 2003 - 06:52:10 GMT-3
Hi,
I don't beleive that OSPF has a split horizon rule in regards to your 3rd
point. Correct me if I'm wrong.
Keep the gotchas coming though!!!
----- Original Message -----
From: <ray_gan74@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Thursday, February 20, 2003 8:10 PM
Subject: CCIE Gotchas: Watch out!
> Wanted to start a thread on some gotchas to look out for when configuring
> protocols/redistribution. PLEASE contribute. Ill go first.
>
> 1. BGP-->OSPF redistribution
>
> What = Routes not advertised to ibgp peers.
> Why? = Router ID's of ospf and bgp don't match.
> Solution: Use BGP confederations which does not suffer from this issue.
> Use another IGP instead of OSPF. Turn off BGP synchronization on each BGP
> router within AS. Hardcode the OSPF and BGP router-id's to
so
> that they match.
>
>
> 2. You can not configure a virtual link across a stub area
>
>
> 3. If you set a p2p link as ip ospf point-to-multipoint then what you will
see
> is /32's being advertised for both your end points of the link breaking
the
> split horizon rule. I am not sure why the /32 sets sent.
>
> .
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