From: Bill Wagner (billccie2b@hotmail.com)
Date: Wed Jul 26 2006 - 21:26:15 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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