CLI Reference Guide

692 OSPF Commands
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ip ospf areaid
Use the ip ospf areaid command in Interface Configuration mode to set the OSPF area to which
the specified router interface belongs. Assigning an area ID, which does not exist on an interface,
causes the area to be created with default values. The
no version of this command removes the
OSPF area setting for the specified router interface.
Syntax
ip ospf areaid area-id
no ip ospf areaid area-id
• area-id — Identifies the OSPF area to configure. (Range: IP address or or decimal from 0-
4294967295)
Default Configuration
This command has no default configuration.
Command Mode
Interface Configuration (VLAN) mode
User Guidelines
This command has no user guidelines.
Example
The following example sets area 10 as the the OSPF area to which the VLAN 15 router
interface belongs.
console(config)#interface vlan 15
console(config-if-vlan15)#ip ospf areaid 10
ip ospf authentication
Use the ip ospf authentication command in the Interface Configuration mode to set the OSPF
Authentication Type and Key for the specified interface. Use the no form of the command to
return the authentication type to the default value.
Syntax
ip ospf authentication { none | { simple key } | { encrypt key key-id }}
no ip ospf authentication
• encrypt—
MD5 encrypted authentication key.
•
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 .)