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 conguration 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 specied as one of the login
authentication methods in the aaa authentication login command.
When conguring AAA authorization, you can congure to limit the attributes of services available to a user. When you enable
authorization, the network access server uses conguration information from the user prole to issue the user's session. The user’s access
is limited based on the conguration attributes. RADIUS exec-authorization stores a user-shell prole 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 RADIUS
server, the server returns the following information to the client:
• Idle Time
• ACL Conguration Information
• Auto-Command
• Privilege Levels
After gaining authorization for the rst time, you may congure these attributes.
NOTE
: RADIUS authentication/authorization is done for every login. There is no dierence between rst-time login and
subsequent logins.
Security 707
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