The site device is automation hardware, providing FTP service and Modbus/TCP server. The worker roles in Azure should access these data on a schedule.
Since the supported protocols by automation platform arent secured, we need to use a VPN to connect to the cloud.
My 3G router has a VPN Client built-in, but Azure Connect seems to use a complex VPN settings that are probably not met by a standard router. That's why I'm looking for tested VPN clients.