OSPF authenication

From: tok cok (tokcok@xxxxxxxxxxx)
Date: Sun Mar 04 2001 - 02:46:28 GMT-3


   
Hi guys,

I was doing a simple OSPF authentication for an area.
I came across the an interface command 'ip ospf authentication'.
When do we use this command?

Below is what I had configure for the two router.

ROUTER A

interface Ethernet0
ip address 11.1.1.6 255.255.0.0
no ip directed-broadcast
ip ospf authentication-key cisco
!
router ospf 1
area 4 authentication
network 11.1.0.0 0.0.255.255 area 4

ROUTER B

interface Ethernet0
ip address 11.1.1.5 255.255.0.0
no ip directed-broadcast
ip ospf authentication-key cisco
!
router ospf 1
area 4 authentication
network 11.1.0.0 0.0.255.255 area 4

I'm only configuring simple authentication. Do I still need to configure
'ip ospf authentication' after I had configure 'ip ospf authentication-key'?

Really appriciate if someone could enlighten me!

Cheers



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