On the Radius server, open the application named: Network Policy Server
You need to authorize the Radius server on the Active directory database.
Right-click on NPS(LOCAL) and select the Register server in Active Directory option.
On the confirmation screen, click on the OK button.
Next, you need to configure Radius clients.
Radius clients are devices that will be allowed to request authentication from the Radius server.
Important! Do not confuse Radius clients with Radius users.
Right click on Radius Clients folder and select the New option.
Here is an example of a Client configured to allow a Pfsense firewall to connect to the Radius server.
You need to set the following configuration:
• Friendly name to the device - Add a description to you Pfsense
• Device IP Address - IP address of your PFsense firewall
• Device Shared secret - kamisama123
The Shared secret will be used to authorize the device to use the Radius server.
You have finished the Radius client configuration.