COMMUNICATION TERMINAL, TERMINAL, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND PROGRAM

摘要

Intended is to specify a communication source application in a TCP/IP stream communication. A communication source terminal (10) for communicating with a communication target terminal (20) sends the information (e.g., a communication source IP address and a communication source port number) of the communication source terminal (10) on the communication with the communication target terminal (20), via a general-purpose communication passage (60) to the communication target terminal (20), and sends both the information of the communication source terminal (10) on that communication and the information of the communication source application being executed on the communication source terminal (10), via a leased communication passage (30) of high safety other than the general-purpose communication passage (60), to the communication target terminal (20).