| Resolution |
To configure OSPF plain text authentication, specify the plain text password to be used
for authentication on an interface, and enable authentication for the OSPF area. To assign a password to
be used by neighboring routers using the OSPF plain text password authentication, issue the ip ospf authentication-key command in interface configuration mode.
To enable authentication for an OSPF area, issue the area authentication command in router configuration mode.
To configure OSPF MD5 authentication, specify a password to be used for authentication on an interface ,
and enable MD5 authentication for the area. To enable OSPF MD5 authentication and to
specify the password to be used by neighboring routers to authenticate to each other, issue the ip ospf message-digest-key command in interface configuration mode. To enable MD5 authentication for an OSPF area, issue the area authentication command with the message-digest keyword in router configuration mode.
For information on OSPF authentication and configuration examples, refer to Sample Configuration for Authentication in OSPF. |