Patent ID: 6925487
Filing Date: 2005-08-02
Classification: H04L

Abstract:
1. A method for exchanging online information over a private network in a client/server system, said client/server system including a client for sending and receiving the online information over an Internet network, and a server connected to said client via a router, said method comprising the steps of: a), by said server, determining whether said client uses said private network and sending the determined result to said client; b), by said client, sending information about its valid Internet protocol (IP) addresses and information about its actually used IP address to said server if said result determined at said step a) indicates that said client uses said private network; c), by said server, sending acknowledgement information to all of said IP addresses contained in said information sent at said step b), said acknowledgement information containing information regarding an IP address of said client for actual access to said server via said router; d), by said client, determining from said acknowledgement information sent at said step c) whether it employs a private IP address; and e), by said router, storing said information about said actually used IP address of said client if it is determined at said step d) that said client employs the private IP address, and then exchanging the online information between said server and said client via said actually used IP address of said client.