CONFIGURING THE SWITCH
•RADIUS uses UDP while TACACS+ uses TCP. UDP only offers best effort delivery, while TCP offers a
•RADIUS and TACACS+ logon authentication control management access via the console port, Web browser, or Telnet. These access options must be configured on the authentication server.
•RADIUS and TACACS+ logon authentication assign a specific privilege level for each user name/password pair. The user name, password, and privilege level must be configured on the authentication server.
•You can specify up to three authentication methods for any user to indicate the authentication sequence. For example, if you select (1) RADIUS, (2) TACACS and (3) Local, the user name and password on the RADIUS server is verified first. If the RADIUS server is not available, then authentication is attempted using the TACACS+ server, and finally the local user name and password is checked.
Command Attributes
•Authentication – Select the authentication, or authentication sequence required:
-RADIUS – User authentication is performed using a RADIUS server only.
-TACACS – User authentication is performed using a TACACS+ server only.
-Local – User authentication is performed only locally by the switch.
-[authentication sequence] – User authentication is performed by up to three authentication methods in the indicated sequence.
