Chapter 2. OSPF Area Commands

area area-id authentication


This command requires the following additional commands:

For a physical interface: ip ospf authentication-key password (see Section 19-2) For a virtual link if authentication is used in area 0: area transit-area virtual-link router-id authentication-key password (see Section 2-17)

Syntax Description:

  • area-id—OSPF area ID. This value can be entered as a decimal number in the range of 0 to 4,294,967,295 or in IP address format in the range to This command will enable simple password authentication in the indicated OSPF area. By default, authentication is not enabled.

  • transit-area—The OSPF area across which the virtual link is configured.

  • password—Clear-text password ...

Get Cisco OSPF Command and Configuration Handbook now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.