You can use a RADIUS (Remote Authentication Dial In User Service) server to authenticate network login users and supply configuration data that the switch can use to make dynamic configuration changes to accommodate network login users.
A RADIUS server allows you to centralize the authentication database, so that you do not have to maintain a separate local database on each switch. RADIUS servers provide the following services for network login sessions:
To use RADIUS server features, you need the following components:
Note
RADIUS provides many of the same features provided by TACACS+, but the network login feature does not work with TACACS+.The following sections provide more information on network login session authentication: