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Communication system and method for executing application program that specifies no communication parameter

Image Number 2 for United States Patent #8126444.

In a TCP/UDP communication system, a communication process begins with a receipt of a communication request from an application program that does not specify a predetermined communication parameter such as source port number. A port number is dynamically assigned to the communication request. The communication process is then suspended and communication control data associated with the application program is supplemented with the assigned source port number to generate supplemented communication control data. The communication process is then resumed to establish communication over a communications network, and the established communication is controlled according to the supplemented communication control data.

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