DELL S6000-ON User Manual

Enabling and Disabling Privilege Levels

To enable and disable privilege levels, use the following commands.

• Set a user’s security level.

EXEC Privilege mode

enable or enable privilege-level

If you do not enter a privilege level, Dell Networking OS sets it to 15 by default.

• Move to a lower privilege level.

EXEC Privilege mode

disable level-number

– level-number: The level-number you wish to set.

If you enter disable without a level-number, your security level is 1.

RADIUS

Remote authentication dial-in user service (RADIUS) is a distributed client/server protocol.

This protocol transmits authentication, authorization, and configuration information between a central 
RADIUS server and a RADIUS client (the Dell Networking system). The system sends user information to 
the RADIUS server and requests authentication of the user and password. The RADIUS server returns one 
of the following responses:

• Access-Accept — the RADIUS server authenticates the user.
• Access-Reject — the RADIUS server does not authenticate the user.

If an error occurs in the transmission or reception of RADIUS packets, you can view the error by enabling 
the debug radius command.

Transactions between the RADIUS server and the client are encrypted (the users’ passwords are not sent 
in plain text). RADIUS uses UDP as the transport protocol between the RADIUS server host and the client.

For more information about RADIUS, refer to RFC 2865, Remote Authentication Dial-in User Service.

RADIUS Authentication

Dell Networking OS supports RADIUS for user authentication (text password) at login and can be 
specified as one of the login authentication methods in the aaa authentication login command.

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Security