15 ospf commands, 1 area authentication – CANOGA PERKINS CanogaOS Command Reference User Manual

Page 240

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CanogaOS Command Line Reference

Revision 1.02

Proprietary & Confidential Canoga Pertkins Metro Ethernet Switches

Page 240 of 855

15 OSPF Commands

15.1 area authentication

To enable authentication for an Open Shortest Path First (OSPF) area, use the area authentication
command in router configuration mode. To remove an authentication specification of an area or a
specified area from the configuration, use the no form of this command.


Command Syntax

area area-id authentication [message-digest]
no area
area-id authentication

area-id

Identifier of the area for which authentication is to be enabled. The
identifier can be specified as either a decimal value or an IP address.

message-digest

(Optional) Enables Message Digest 5 (MD5) authentication on the area
specified by the area-id argument.


Default

Type 0 authentication (no authentication)


Command Mode

Router configuration


Usage

Specifying authentication for an area sets the authentication to Type 1 (simple password) as specified
in RFC 1247. If this command is not included in the configuration file, authentication of Type 0 (no
authentication) is assumed.
The authentication type must be the same for all routers and access servers in an area. The
authentication password for all OSPF routers on a network must be the same if they are to
communicate with each other via OSPF. Use the ip ospf authentication-key interface command to
specify this password.
If you enable MD5 authentication with the message-digest keyword, you must configure a password
with the ip ospf message-digest-key interface command.
To remove the authentication specification for an area, use the no form of this command with the
authentication keyword.


Examples

The following example mandates authentication for areas 0 and 10.0.0.0 of OSPF routing process 201.
Authentication keys are also provided.
interface eth-0-1
no switchport
ip address 192.168.251.201/24
ip ospf authentication-key adcdefgh

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