Dell PowerConnect 5548 User Guide - Page 262

Authentication Profiles In addition to access profiles, you can configure authentication for management access methods, such as SSH, console, Telnet, HTTP, and HTTPS. User authentication can occur: • Locally • Via an external server, such as a TACACS+ or a RADIUS server User authentication occurs in the order that the methods are selected, for example, if both the Local and RADIUS options are selected, the user is authenticated first locally. If the local user database is empty, the user is authenticated via the RADIUS server. If an error occurs during the authentication, the next selected method is used. If an authentication method fails, or the user has an insufficient privilege level, the user is denied access to the switch. The switch then stops, does not continue, and does not attempt to use the next authentication method. If a privilege level is redefined, the user must also be re-defined. User authentication can also be set to None, in which case no authentication is performed. The process of configuring authentication for management access methods is divided into the following stages: • Create an authentication profile, as described below • Assign an authentication profile to a management method, as described in "Select Authentication" on page 265 262 Dell PowerConnect 55xx Systems User Guide