This solution applies to Barracuda SSL VPN models 380 and above, all firmware versions.
The RADIUS authentication module enables the Barracuda SSL VPN to authenticate users against an external RADIUS server, and can be used as a primary module in an authentication scheme.
Before the RADIUS module can be configured as a part of an authentication scheme, you must configure the details of your RADIUS server. To configure your RADIUS server, navigate to Access Control > Configuration and scroll down to the section entitled RADIUS. Below are the available configuration options.