Server client system for automatically setting port number

摘要

All port numbers are set at a server, whereas only one port number is set at a client. The client searches for the server by using the set port number. The server responds to searching by the client and notifies the client of the other port number that is not set at the client. The client establishes the communication with the server by using the notified port number. This makes it unnecessary to set all port numbers at the client. It is therefore possible to provide a server client system with time for setting a port number decreased.