From: William Wong Kun Sing (wong_kunsing@xxxxxxxxxxxxxxxxx)
Date: Wed Aug 21 2002 - 00:30:00 GMT-3
Hi guys
FYI.
Three types of authentication: [0] None [1] Plain Text [2] MD5
Passwords don't have to be the same throughout an area, but they do need to
be same between neighbors.
MD5 authentication uses a key ID that allows the router to reference
multiple passwords, making password migration easier and more secure. For
example, to migrate from one password to another, configure a password under
a different key ID and later remove the first key.
Method 1: Router wide authentication
In this method, all interface under the area will be authentication
enabled. However, each individual area interface must be configured a
password.
router ospf ... // Plain Text
Authentication
area ... authenticaiton
int ...
ip ospf authentication-key ... // Plain
text password
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