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Cisco IOS in a Nutshell, 2nd Edition by James Boney

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Name

ip ospf authentication-key — interface

Synopsis

ip ospf authentication-key password
no ip ospf authentication-key

Configures

A password to authenticate OSPF neighbors

Default

None

Description

This command assigns a password for communicating with neighboring routers to this interface. All adjacent routers should be configured with the same authentication key. The password can be from 1 to 8 bytes in length.

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