Method for an internet communication

• US 20040076121A1
• Filed: 10/27/2003
• Published: 04/22/2004
• Est. Priority Date: 11/10/2000
• Status: Abandoned Application

• Current Assignee: Intermedia Co., Ltd.
• Original Assignee: Intermedia Co., Ltd.
• Inventors: Jo, Ja-Yun, Yang, Seung-Eui
• Application Number:
  US10/416,356
• Publication Number:
  US 20040076121A1
• Time in Patent Office: Days
• US Class Current: 370/253
• CPC Class Codes: H04L 12/4641 Virtual LANs, VLANs, e.g. virtual private networks [VPN] LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/30 Managing network names, e.g. use of aliases or nicknames name-to-address mapping H04L61/45

Abstract

The present invention relates to an Internet communication method, which can implement smooth bi-directional communication on the Internet between a user of a virtual IP address and a user of a real IP address. The present invention involves forming a client address information table by means of mapping, as a pair, an Internet protocol address (server-recognized IP address) obtained through a network socket and Internet protocol addresses (client-notified IP address) notified of directly by respective clients. Upon receiving a signal asking for an Internet protocol address of a corresponding client to be connected from a client terminal, the server-recognized IP address and the client-notified IP address of the corresponding client are read from said client address information table, which are then provided to the client terminal. Accordingly, by means of executing a connection by differentiating the client terminals having a real IP addresses from the client terminals having a virtual IP addresses, the present invention allows a user of the real IP address to call a user of the virtual IP address. In addition, the present invention results in smooth execution of Internet connections among users of different private networks.

Claims

1. A method for an Internet communication comprising:

process 1 which generates a client address information table by mapping the IP address recognized through network socket (the server-recognized IP address) and the IP address notified directly by each client (the client-notified IP address) into a pair of addresses;

process 2 which receives a signal from the first client terminal requesting the IP address of the second client terminal to be connected;

process 3 which loads the server-recognized IP address and the client-notified IP address of the corresponding client from said client address information table; and

process 4 which executes the connection by providing the client terminal with the information loaded by process 3, distinguishing the client terminal having a real IP address and the client terminal having a virtual IP address,

the connection between the first client terminal having a real IP address and the second client terminal having a virtual IP address in process 4 comprising;

step 1 wherein the first client provide the IP address of the first client and the IP address of the second client to the service server;

step 2 wherein service server transfers the IP address information of the first client to the second client; and

step 3 wherein the second client tries TCP/IP connection to the first client.

2. The method for an Internet communication according to claim 1, wherein the connection between the first client terminal having a virtual IP address of the first PN (Private Network) and the second client terminal having a virtual IP address of the second PN (Private Network) in process 4 comprises:

step 1 wherein the first client provides the IP address of the first client and the IP address of the second client to the service server;

step 2 wherein service server generates a connection code which is internally unique in the service server;

step 3 wherein the connection code information and the IP address information of a packet-switching server is transferred to the first client and the second client; and

step 4 wherein the first client and the second client tries TCP/IP connection to the assigned packet-switching server through the same connection code assigned.

3. The method for an Internet communication according to claim 2, wherein said connection code is a serial number consisting of integer.

4. The method for an Internet communication according to claim 2, wherein said packet-switching server is a multi-server.

5. The method for an Internet communication according to claim 4, wherein said packet-switching server provides the service server with current service count information, so that said packet-switching server can be directed to provide a packet-switching service for a new connection.