Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

To use this feature:

1. Create a username.
2. Enter a password.
3. Assign an access class.
4. Enter a privilege level.

You can assign line authentication on a per-VTY basis; it is a simple password authentication, using an access-class as authorization.

Configure local authentication globally and configure access classes on a per-user basis.

Dell Networking OS can assign different access classes to different users by username. Until users attempt to log in, Dell Networking OS does not know if they will be assigned a VTY line. This means that incoming users always see a login prompt even if you have excluded them from the VTY line with a deny-all access class. After users identify themselves, Dell Networking OS retrieves the access class from the local database and applies it. (Dell Networking OS then can close the connection if a user is denied access.)

The following example shows how to allow or deny a Telnet connection to a user. Users see a login prompt even if they cannot log in. No access class is configured for the VTY line. It defaults from the local database.

Dell(conf)#user gooduser password abc privilege 10 access-class permitall
                                 Dell(conf)#user baduser password abc privilege 10 access-class denyall
                                 Dell(conf)#
                                 Dell(conf)#aaa authentication login localmethod local
                                 Dell(conf)#
                                 Dell(conf)#line vty 0 9
                                 Dell(config-line-vty)#login authentication localmethod
                                 Dell(config-line-vty)#end