OSPF authentication

From: CJ (693455@gmail.com)
Date: Fri Nov 09 2007 - 05:08:35 ART


Hi Group

WHen a question says,

all area 0 adjacencies must be authenticated with an md5 hash.

there are two ways to do this.

ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 <>

as opposed to

router ospf 1
area <> authentication message-digest

int f0/0
ip ospf message-digest-key 1 md5 <>

How do you decide which one is the more appropriate way?



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