
OSPF Commands 683
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)
•
neighbor-id
—
Identifies the Router identifier of the neighbor.
• encrypt—
Use MD5 Encryption for an OSPF Virtual Link.
•
key
—
Authentication key for the specified interface. (Range: 8 bytes or less if the
authentication type is
simple
and 16 bytes or less if the type is
encrypt
.)
•
key-id
—
Authentication key identifier for the authentication type
encrypt
. (Range: 0-255)
Default Configuration
This command has no default configuration.
Command Mode
Router OSPF Configuration mode
User Guidelines
Unauthenticated interfaces do not need an authentication key.
Example
The following example configures the authentication type and key for the area 10 OSPF
virtual interface and neighbor ID.
console(config-router)#area 10 virtual-link 192.168.2.2
authentication encrypt test123 100
area virtual-link dead-interval
Use the
area virtual-link dead-interval
command in Router OSPF Configuration mode to
configure the dead interval for the OSPF virtual interface on the virtual interface identified by
area-id and neighbor router. Use the no form of the command to return the dead interval to the
default value.
Syntax
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