Change How Often the RADIUS Server Updates RADIUS Client Information

By default, RSA Authentication Manager requires up to 600 seconds (10 minutes) to reflect any updates that are made to RADIUS clients that previously authenticated to the RADIUS server. Restarting the RADIUS server causes any changes to take effect immediately.

You can edit the dynamic-clients file to change how often the RADIUS server requests updated information from IPv4 RADIUS clients and from IPv6 RADIUS clients. To apply the same change throughout your deployment, you must edit the file on each primary and replica instance.

Note: Do not make any other changes in the dynamic-clients file. Changes to other configuration values can result in authentication failures for RADIUS clients.

Before you begin

You must have Super Admin and Operations Console administrator credentials.


  1. Log on to the Operations Console on the RSA Authentication Manager primary instance.
  2. Click Deployment Configuration > RADIUS Servers.
  3. If prompted, enter the Super Admin User ID and password, and click OK.
  4. Select the RADIUS server that you want to update, and select Manage Server Files from the context menu.
  5. On the Manage Server Files page, click the Configuration Files tab.
  6. Select the dynamic-clients file, and select Edit from the context menu.
  7. In the configuration section for IPv4 RADIUS clients and in the configuration section for IPv6 RADIUS clients, you can enter new Lifetime values, in seconds. For example, to refresh the clients after 8 minutes, enter:

    Lifetime = 480

    A value that is too small causes the clients to load too often, but a value that is too large delays the effective time that is required for administration. Enter 0 to never reload client information.

  8. Click Save & Restart RADIUS Server for the changes to take effect.

After you finish

To copy edits to another RADIUS server in the deployment, select the appropriate RADIUS server from the manage RADIUS Servers page on the primary instance, and copy or make the edits.