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

To configure RADIUS to authenticate or authorize users on the system, create a AAA method list.

• Enter a text string (up to 16 characters long) as the name of the method list you wish to use with the RADIUS authentication method. CONFIGURATION mode aaa authentication login method-list-name radius
• Create a method list with RADIUS and TACACS+ as authorization methods. CONFIGURATION mode aaa authorization exec { method-list-name | default} radius tacacs+ Typical order of methods: RADIUS, TACACS+, Local, None. If RADIUS denies authorization, the session ends (RADIUS must not be the last method specified).