Tunneling (also known as port forwarding) is a way to forward TCP traffic. Any application protocol running over TCP can be tunneled using this service. Client-server applications carry out any authentication procedures just as they do when TCP tunneling is not involved.
To Create a TCP Tunnel.
Now go to the Visual Policy Manager and create a rule in Web Access Layer to allow users to access the service.
Please note the ProxySG should be in transparent deployment mode for this service to work.