Binding a RADIUS service to a LAN/loopback can be necessary when using a VPN or if the RADIUS server is set to accept traffic from specific source addresses. Use the following steps to bind a RADIUS service to a LAN:
Navigate to > > .
Scroll to the LAN Network Binding section.
Select .
Select from the drop-down menu in the Service column,
Select the LAN to bind the RADIUS server to from the drop-down menu in the Source column.
Select .