The following configuration page will appear to let you configure.
Use Interface: select from the drop-down menu the interface you want the virtual server(s) applies
to.
Server Name:
Select a Service: select the server name from the drop-down menu.
Custom Service: it is a kind of service to let users customize the service they want. Enter the
user-defined service name here. It is a parameter only available when users select Custom
Service in the above parameter.
Server IP Address: Enter your server IP Address here.
External Port
Start: Enter a port number as the external starting number for the range you want to give
71