Administrator Authentication (requires Level 15 permission)

Configure administrator authentication from this window (Configuration > User Management > Setup). All three authentication options (Radius, Tacacs+ and Local) use a numeric system with these values:

8 Operator is the lowest authentication level and also the default. Operators can see statistics and results but cannot make any configuration changes.
5 Admininstrators can do general configuration changes, but cannot upgrade APs or controllers, nor can they upgrade System Director versions using Telnet. The cannot configure an NMS server, NTP server, change the system password, date or time (all CLI). They cannot create local admins, a new feature in release 4.1, nor can they set the authentication mode for a controller (GUI and CLI). Administrators cannot add or remove licensing
2

Super Admininstrators can perform all configurations on the controller. They are the only ones who can upgrade APs or controllers and they can upgrade System Director versions using Telnet. The can configure an NMS server, NTP server, system password, date and time (all CLI). They can also create local admins, a new feature in release 4.1, and set the authentication mode for a controller (GUI and CLI). Superusers can add and remove licensing.

Configure Radius Authentication for Administrators

The Radius tab is selected by default. Provide these parameters, and then click OK.

Authentication Type Radius
Primary Radius IP Address IP address of the primary Radius server
Primary Radius Port Default primary Radius port is 1812, but 1024-65535 is valid
Primary Radius Secret Key Password for primary Radius server
Secondary Radius IP Address Optional IP address of the secondary Radius server
Secondary Radius Port Port 1024-65535 is valid
Secondary Radius Secret Key Password for secondary Radius server

Configure Tacacs+ Authentication for Administrators

Click the Tacacs+ tab, provide these parameters, and then click OK.

Authentication Type Tacacs+
Primary Tacacs+ IP Address IP address of the primary Tacacs+ server
Primary Tacacs+ Port Default port is 49, but 0-65535 is valid
Primary Tacacs+ Secret Key Password for primary Tacacs+ server
Secondary Tacacs+ IP Address Optional IP address of the secondary Radius server
Secondary Tacacs+ Port Port 0-65535 is valid
Secondary Tacacs+ Secret Key Password for secondary Tacacs+ server

Configure Local Authentication for Administrators

Click the Local Admins tab>  Add > provide these parameters, and then click OK.

User Name  
Password  
Privilege Level 8, 5, or 3 (see description above)