From: Bill Wagner (billccie2b@hotmail.com)
Date: Wed Jul 26 2006 - 21:30:31 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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