From: Scott Morris (swm@emanon.com)
Date: Wed Oct 26 2005 - 08:21:23 GMT-3
In OSPF, you can do authentication either as an area process or on an
individual interface basis. In this case, the virtual link is the
interface.
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of The
Great Ryan
Sent: Wednesday, October 26, 2005 4:04 AM
To: Cisco certification
Subject: What is the use of "Authentication" Keyword in Virtual-link
command?
Hi Group,
I'm trying to connect Router1 to area 0 by virtual-link comnad. I got same
result when I use or not to use "authentication" keyword in virtual-link
commnad. It shows that the virtual-link enable Simple password
authentication.
What is the use of "Authentication" Keyword in Virtual-link command? Thanks
!
Ryan
================ Without "Authentication" Keyword ================== router
ospf 1 area 0 authentication area 1 virtual-link 2.2.2.2
authentication-key cisco !
Router1#show ip ospf virtual-links
Virtual Link OSPF_VL0 to router 2.2.2.2 is up
Run as demand circuit
DoNotAge LSA allowed.
Transit area 1, via interface Serial0/1, Cost of using 64
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:02
Adjacency State FULL (Hello suppressed)
Index 1/2, retransmission queue length 0, number of retransmission 1
First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
Last retransmission scan length is 1, maximum is 1
Last retransmission scan time is 0 msec, maximum is 0 msec
Simple password authentication enabled
================ With "Authentication" Keyword ================== router
ospf 1 area 0 authentication area 1 virtual-link 2.2.2.2 authentication
authentication-key cisco !
Router1#show ip ospf virtual-links
Virtual Link OSPF_VL0 to router 2.2.2.2 is up
Run as demand circuit
DoNotAge LSA allowed.
Transit area 1, via interface Serial0/1, Cost of using 64
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:00
Adjacency State FULL (Hello suppressed)
Index 1/3, retransmission queue length 0, number of retransmission 1
First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
Last retransmission scan length is 1, maximum is 1
Last retransmission scan time is 0 msec, maximum is 0 msec
Simple password authentication enabled
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