OSPF Commands 1113
Command Mode
Router OSPF Configuration mode.
User Guidelines
Unauthenticated interfaces cannot be configured with an authentication key.
Use the area virtual-link authentication command on page 1113 to enable
configuration of an authentication key.
Example
The following example establishes a virtual link with a 40-second transmit-
delay interval and default values for all other optional parameters:
router ospf
network 10.50.50.0 0.0.0.255 area 10
area 10 virtual-link 192.168.2.2 transmit-delay 40
The following example establishes a virtual link with MD5 authentication:
router ospf
network 10.50.50.0 0.0.0.255 area 10
area 10.0.0.0 virtual-link 10.3.4.5 message-digest-key 100
md5 test123
area virtual-link authentication
Use the area virtual-link authentication command in Router OSPF
Configuration mode to configure the authentication type and key for the
OSPF virtual interface identified by the area ID and neighbor ID. Use the no
form of the command to return the authentication type to the default value.
Syntax
area
area-id
virtual-link
neighbor-id
authentication [none | simple
key
|
encrypt
key

key-id

]
no area
area-id
virtual-link
neighbor-id
authentication
•
area-id
— Identifies the OSPF area to configure. (Range: IP address or
decimal from 0–4294967295)
2CSPC4.XCT-SWUM2XX1.book Page 1113 Monday, October 3, 2011 11:05 AM