ApplinX TCP/IP Protocol

Hi There,

I am writing a Solution Design for an application developed using ApplinX and I was asked by our System Architect, what TCP/IP Protocol is used between the ApplinX Server and the Web Server.

The documentation shows a TCP/IP between the ApplinX Server and the Web Server, so could anyone specify which TCP/IP is used by ApplinX to link these two components.

I appreciate any help.