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• Configuring AAA Authentication Login Methods
• Enabling AAA Authentication
• Enabling AAA Authentication—RADIUS
For a complete list of all commands related to login authentication, refer to the Security chapter in the
Dell Networking OS Command Reference Guide.
Configure Login Authentication for Terminal Lines
You can assign up to five authentication methods to a method list. The system evaluates the methods in
the order in which you enter them in each list.
If the first method list does not respond or returns an error, the system applies the next method list until
the user either passes or fails the authentication. If the user fails a method list, the system does not apply
the next method list.
Configuring AAA Authentication Login Methods
To configure an authentication method and method list, use the following commands.
Dell Networking OS Behavior: If you use a method list on the console port in which RADIUS or TACACS
is the last authentication method and the server is not reachable, the system allows access even though
the username and password credentials cannot be verified. Only the console port behaves this way, and
does so to ensure that users are not locked out of the system if network-wide issue prevents access to
these servers.
1. Define an authentication method-list (method-list-name) or specify the default.
CONFIGURATION mode
aaa authentication login {method-list-name | default} method1 [... method4]
The default method-list is applied to all terminal lines.
Possible methods are:
• enable: use the password you defined using the enable secret or enable password
command in CONFIGURATION mode.
• line: use the password you defined using the password command in LINE mode.
• local: use the username/password database defined in the local configuration.
• none: no authentication.
• radius: use the RADIUS servers configured with the radius-server host command.
• tacacs+: use the TACACS+ servers configured with the tacacs-server host command.
2. Enter LINE mode.
CONFIGURATION mode
line {aux 0 | console 0 | vty number [... end-number]}
3. Assign a method-list-name or the default list to the terminal line.
LINE mode
login authentication {method-list-name | default}
To view the configuration, use the show config command in LINE mode or the show running-
config in EXEC Privilege mode.
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