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Configuring the RADIUS Server Settings

RADIUS (Remote Authentication Dial In User Service) is a protocol for managing Authentication, Authorization and Accounting (AAA) of multiple users in a network. A RADIUS server stores a database of user information, and can validate a user at the request of a gateway device in the network when a user requests access to network resources. The wireless access point can relay login information from wireless clients to an external RADIUS server for AAA services. In an environment with many users, using a RADIUS server allows centralized control for individual users, providing better network security than using a single preshared key for all users.

The RADIUS Server Settings fields are described in Table 4-3..

To configure the RADIUS Server Settings:

  1. Select Security under the main Configuration tab, then select Advanced from the side menu. The Radius Server Settings screen displays, as in Figure 4-10.
  2. Figure 4-10  RADIUS server settings

  3. Enter the following RADIUS Server settings:
    • Authentication Server. This configuration is required for authentication using a RADIUS Server.The IP Address, Port Number, and Shared Secret are required for communication with the Primary RADIUS Server. You can also configure a Secondary RADIUS Server to use, if the Primary RADIUS Server fails.
      • IP Address. The IP address of the RADIUS Server.
      • Port Number. The port number of the RADIUS Server. The default is 1812.
      • Shared Secret. This is shared between the Wireless Access Point and the RADIUS Server while authenticating the supplicant (wireless client).
    • Accounting Server. This configuration is required for accounting using a RADIUS Server. The IP Address, Port Number, and Shared Secret are required for communication with the Primary RADIUS Server. You can also configure a Secondary RADIUS Server to use if the Primary RADIUS Server fails.
      • IP Address. The IP address of the RADIUS Server.
      • Port Number. Port number of the RADIUS Server. The default: 1813.
      • Shared Secret. This is shared between the Wireless Access Point and the RADIUS Server while authenticating the supplicant (wireless client).
  4. Authentication Settings:
    • Re-authentication Time (Seconds). The time interval in seconds after which the supplicant will be authenticated again with the RADIUS Server.
      The default interval is 3600 seconds.
    • Update Global Key Every (Seconds). Enable this option to have the Global Key changed according to the time interval specified. If enabled, enter the desired time interval.
      The default is enable, and the default interval is 3600 Seconds
  5. Click Apply for your changes to take effect.

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