Name
login — line
Synopsis
login [local | tacacs] no login [login | tacacs]
Configures
The login authentication method for connections
Default
No authentication
Description
This command tells the line to authenticate the user before allowing access. If you give this command without any arguments, you must use the password command to specify a password for this line. The local keyword tells the router to maintain its own database of users, created using the username command. The tacacs keyword tells the router to authenticate users by contacting a TACACS server.
When using login local, make sure you have at least one username configured before you log out. Otherwise, you will be locked out of the specified lines.
Example
To enable simple authentication using a single password for all access through this line:
line vty 0 4 login password letmein
These commands enable authentication using a local database of usernames and user-specific passwords; users Bob, Ann, and John are the only ones able to log into this line.
username bob password letmein username ann password letmein2 username john password letmein3 line vty 0 4 login local