Configuration Task List for AAA AuthenticationThe following sections provide the configuration tasks.•• Configuring AAA Authentication Login Methods• Enabling AAA Authentication• Enabling AAA Authentication - RADIUSFor a complete list of all commands related to login authentication, refer to the Security chapter in theDell Networking OS Command Reference Guide.Configure Login Authentication for Terminal LinesYou can assign up to five authentication methods to a method list. Dell Networking OS evaluates themethods in the order in which you enter them in each list.If the first method list does not respond or returns an error, Dell Networking OS applies the next methodlist until the user either passes or fails the authentication. If the user fails a method list, Dell NetworkingOS does not apply the next method list.Configuring AAA Authentication Login MethodsTo 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 TACACSis the last authentication method, and the server is not reachable, Dell Networking OS allows access eventhough the username and password credentials cannot be verified. Only the console port behaves thisway, and does so to ensure that users are not locked out of the system if network-wide issue preventsaccess to these servers.1. Define an authentication method-list (method-list-name) or specify the default.CONFIGURATION modeaaa 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 passwordcommand 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 modeline {aux 0 | console 0 | vty number [... end-number]}3. Assign a method-list-name or the default list to the terminal line.LINE modelogin authentication {method-list-name | default}774 Security
