OSPF MD5 - Rollover

From: gladston@br.ibm.com
Date: Thu Apr 21 2005 - 14:06:59 GMT-3


Rollover key works fine before reloading. After reloading R4 tries to authenticate using key 1 and 2 but adjacency does not go up. If I remove the second key, it establishes the adjacency.

If I configure neighbor statement on R1, adjacency goes up.
Network type is non-broadcast.

Have you seem this behavior?

R4
interface Serial0/0
 ip address 142.20.14.4 255.255.255.0
 ip pim sparse-dense-mode
 encapsulation frame-relay
 ip ospf message-digest-key 1 md5 cisco
 ip ospf message-digest-key 2 md5 ccie

R4
 router-id 142.20.4.1
 log-adjacency-changes
 area 112 authentication message-digest
 area 113 authentication message-digest
 redistribute connected subnets route-map connected->ospf
 network 142.20.4.0 0.0.0.255 area 112
 network 142.20.14.0 0.0.0.255 area 112
 network 142.20.45.4 0.0.0.3 area 113
 neighbor 142.20.14.1

R1
router ospf 1
 router-id 142.20.1.1
 log-adjacency-changes
 area 0 authentication
 area 112 authentication message-digest
 redistribute rip subnets
 network 142.20.1.0 0.0.0.255 area 0
 network 142.20.14.0 0.0.0.255 area 112
 network 142.20.125.0 0.0.0.31 area 0

R1
interface Serial0/0.14 multipoint
 ip address 142.20.14.1 255.255.255.0
 ip pim sparse-dense-mode
 ip ospf message-digest-key 1 md5 cisco
 ip ospf priority 0
 ipv6 address 2001::1/64
 frame-relay map ip 142.20.1.4 104 broadcast
 frame-relay map ip 142.20.14.4 104 broadcast

Rack2R4#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-J1S3-M), Version 12.2(15)T5



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