Radius; Radius Authentication And Authorization - Dell C9000 Series Networking Configuration Manual

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Table of Contents

Resetting a Password

To reset a password on the switch, follow the procedure in

Recovering from a Forgotten Password on the

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.

The system 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.

When configuring AAA authorization, you can configure to limit the attributes of services available to a user.

When you enable authorization, the network access server uses configuration information from the user

profile to issue the user's session. The user's access is 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

RADIUS server, the server returns the following information to the client:

ACL Configuration Information

Auto-Command

Privilege Levels

After gaining authorization for the first time, you may configure these attributes.

RADIUS authentication/authorization is done for every login. There is no difference between first-

time login and subsequent logins.