From: Chuck Church (ccie8776@rochester.rr.com)
Date: Fri Feb 14 2003 - 17:17:29 GMT-3
Sam,
From the Cisco side, it'll work fine. The network will just assume it's
been partitioned away from area 0. Obviously you can't attach any other areas
directly to your area, other than 0. I think other vendors should work with
this as well. But I'd test it first. By the way, don't they usually reserve
OSPF area 555 for use in movies :)
Chuck Church
CCIE #8776, MCNE, MCSE
----- Original Message -----
From: Sam Munzani
To: ccielab@groupstudy.com
Cc: cciesecurity@yahoogroups.com
Sent: Friday, February 14, 2003 1:56 PM
Subject: [cciesecurity] Can you have OSPF without area 0 at all?
Team,
I came across an interesting finding. I want to take everybody's opinion on
this before putting anything in production. We are building an OSPF network
that will eventually merge with company's main OSPF backbone network. The core
group has assigned us ospf area number 555.
When I configure all my routers with OSPF area 555(with no area 0 at all),
it seems to be building up routing table. I always thought OSPF needs area 0
to function. Will this work of we add a non cisco device with area 555
configuration?
What is the catch 22 in this configuration? I have started reading OSPF RFC
to figure out all technical details.
Thanks,
Sam Munzani
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