From: Bill Wagner (billccie2b@hotmail.com)
Date: Wed Jul 26 2006 - 21:20:18 ART
Can anyone please help me solve this problem regarding OSPF authentication?
The topology is a hub and spoke frame-relay network where the spokes can
talk to each other through the hub. OSPF is running in a non-broadcast mode.
Due to the topology I set the spokes to have an OSPF priority of 0 and
create neighbor statements on the hub. I build key 1 for all three devices.
From there I create a new key for the rollover on the hub and only one spoke
as per the requirements. If I reset the peers the spoke with the old key
will not come back online. Debug shows that only the new key is being sent
to the spokes. Since the spoke with the old key does not know about this new
key it will not form an adjencency. Also Since the spokes have a priority of
0 I am unable to install a neighbor statement in the ospf routing process on
the spoke using the old key. The only solution I could find was to bump the
priority up on the spoke with the old key, but this presents a problem if
the spoke router boots before the hub since OSPF does not support premption.
Can anyone tell me what I am missing or if this is not possible? Oh one
more thing is that I cannot change the OSPF network type or the frame relay
topology.
Thanks in advance,
Bill
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