RE: OSPF Authentication ?

From: Palacios, Gonzalo (gpalacios@xxxxxxxxxxxxxxxxx)
Date: Fri Dec 14 2001 - 16:13:06 GMT-3

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Hey,

It seems you are missing a line on router 12

area 0 authentication message-digest

Try it,

Gonzalo PZ>

-----Original Message-----
From: Annu [mailto:annu_roopa@yahoo.com]
Sent: Friday, December 14, 2001 12:14 AM
To: ccielab@groupstudy.com
Subject: OSPF Authentication ?

Gurus,

I have the following setup with which I am trying to
do OSPF MD5 authentication.

          R9
           | eo=.1
           |
  |--------------------------| (192.1.1.0/24)
  |e0=.2 |.3
R11 R12
                              |
                              |
                              R1

R9/R11/R12 are in area 1
R1 is in Area 100 with Virtual link to R9.

The problem is that OSPF authentication between R9 and
R12 is not working.Its working between R9 and R11 on
same Ethernet network. It gives "invalid
authentication type" error on R9. The configs and
version information is as follows.

R12 (11.2(17)

---- interface Ethernet0 ip address 192.1.1.1 255.255.255.0 no ip directed-broadcast no ip route-cache ip ospf message-digest-key 1 md5 roopa no ip mroute-cache

router ospf 100 network 10.0.0.0 0.255.255.255 area 0 network 192.1.1.0 0.0.0.255 area 1 area 0 authentication message-digest area 1 authentication message-digest area 1 virtual-link 3.3.3.3

R9#debug ip ospf events OSPF events debugging is on termsrver# 01:13:42: OSPF: Send with youngest Key 0 01:13:43: OSPF: Send with youngest Key 1 01:13:43: OSPF: Send with youngest Key 1 01:13:50: OSPF: Rcv pkt from 192.1.1.3, Ethernet0 : Mismatch Authentication type. Input packet specified type 0, we use type 2 01:13:52: OSPF: Send with youngest Key 0 01:13:53: OSPF: Send with youngest Key 1 01:13:53: OSPF: Send with youngest Key 1 01:14:00: OSPF: Rcv pkt from 192.1.1.3, Ethernet0 : Mismatch Authentication type. Input packet specified type 0, we use type 2

---------------------

On R12 (Version 12.0(5)

interface Ethernet0 ip address 192.1.1.3 255.255.255.0 no ip directed-broadcast no ip route-cache ip ospf message-digest-key 1 md5 roopa ip ospf priority 100 no ip mroute-cache

router ospf 100 network 3.3.3.3 0.0.0.0 area 1 network 172.16.0.0 0.0.255.255 area 100 network 192.1.1.0 0.0.0.255 area 1 area 1 authentication message-digest area 1 virtual-link 1.1.1.1 message-digest-key 1 md5 roopa

------------------------ AM I missing something or doing something wrong ?? i think it could be a bug.The "debug ip ospf packet" shows correct Auth type.

Let me know.Thanks for ur time to got thru this.

Annu

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