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 O’Reilly online learning.

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