EXEC Privilege modeenable or enable privilege-levelIf you do not enter a privilege level, Dell Networking OS sets it to 15 by default.• Move to a lower privilege level.EXEC Privilege modedisable level-number• level-number: The level-number you wish to set.If you enter disable without a level-number, your security level is 1.RADIUSRemote 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 andpassword. 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 UDPas 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 AuthenticationDell Networking OS supports RADIUS for user authentication (text password) at login and can be specified as one of the loginauthentication methods in the aaa authentication login command.When configuring AAA authorization, you can configure to limit the attributes of services available to a user. When you enableauthorization, the network access server uses configuration information from the user profile to issue the user's session. The user’s accessis limited based on the configuration attributes. RADIUS exec-authorization stores a user-shell profile and that is applied during user login.You may name the relevant named-lists with either a unique name or the default name. When you enable authorization by the RADIUSserver, the server returns the following information to the client:• Idle Time• ACL Configuration Information• Auto-Command• Privilege LevelsAfter gaining authorization for the first time, you may configure these attributes.NOTE: RADIUS authentication/authorization is done for every login. There is no difference between first-time login andsubsequent logins.Security 765
