1. WebADM/OpenOTP/Radius Bridge For this recipe, you will need to have WebADM/OpenOTP installed and configured. Please, refer to WebADM Installation Guide and WebADM Manual to do it. You have also to install our Radius Bridge product on your WebADM server(s). 2. Register your F5 VPN in RadiusBridge On your OpenOTP RadiusBridge server, edit the /opt/radiusd/conf/clients.conf and add a RADIUS client (with IP address and RADIUS secret) for your F5 VPN server.