When a LoadMaster is load balancing NPS, the source IP address of the RADIUS authentication and accounting requests is the Virtual IP Address (VIP) assigned to the virtual service. A RADIUS client must be configured in NPS to allow authentication and accounting requests to be processed. Open the NPS management console and perform the following steps.

  1. Expand RADIUS Clients and Servers.
  2. Right-click RADIUS Clients and select New.
  3. Enter a friendly name for the new RADIUS client.
  4. Enter the VIP of the NPS virtual service in the Address (IP or DNS) field.
  5. Enter and confirm the shared secret used between the NPS and VPN servers.
  6. Click Ok.
  7. Repeat the steps above on each NPS server in the cluster.