Security
Configuring RADIUS
311 Cisco Small Business 300 Series Managed Switch Administration Guide
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Configuring RADIUS
Remote Authorization Dial-In User Service (RADIUS) servers provide a centralized
802.1X or MAC-based network access control. The device is a RADIUS client that
can use a RADIUS server to provide centralized security.
An organization can establish a Remote Authorization Dial-In User Service
(RADIUS) server to provide centralized 802.1X or MAC-based network access
control for all of its devices. In this way, authentication and authorization can be
handled on a single server for all devices in the organization.
The device can act as a RADIUS client that uses the RADIUS server for the
following services:
•Authentication—Provides authentication of regular and 802.1X users
logging onto the device by using usernames and user-defined passwords.
•Authorization—Performed at login. After the authentication session is
completed, an authorization session starts using the authenticated
username. The TACACS+ server then checks user privileges.
•Accounting—Enable accounting of login sessions using the RADIUS server.
This enables a system administrator to generate accounting reports from
the RADIUS server.

Accounting Using a RADIUS Server

The user can enable accounting of login sessions using either a RADIUS or
TACA CS + s er v er.
The user-configurable, TCP port used for RADIUS server accounting is the same
TCP port that is used for RADIUS server authentication and authorization.

Defaults

The following defaults are relevant to this feature:
•No default RADIUS server is defined by default.
•If you configure a RADIUS server, the accounting feature is disabled by
default.