A communication method and a communication system

A technology of communication method and communication system, applied in the field of communication method and communication system, can solve problems such as the inability to directly use the company's file resources, shared resources, and difficulty in building a VPN

Active Publication Date: 2018-12-11
BEIJING ZHIYOU XINCHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the devices in the external network cannot directly communicate with the devices in the local area network. As a result, enterprise users cannot directly use the company's file resources in the external environment, and cannot quickly and conve

Method used

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  • A communication method and a communication system
  • A communication method and a communication system

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Embodiment Construction

[0049]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] The purpose of the present invention is to provide a communication method and a communication system, by binding the TCP data sent by the access client with the unique identity information of the access client, and binding the response data returned by the TCP server with the identity information of the access client, Then communicate with the UDP server through the proxy client to complete the information interaction between the public network and the va...

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Abstract

The invention discloses a communication method and a system. The proxy client generates a UDP data transmission packet according to the identity information of the accessing client and the TCP data packet sent by the accessing client; The UDP server sends the UDP data transmission packet to the TCP server, and determines the UDP response packet according to the response data returned by the UDP server and the identity information of the accessing client. The proxy client obtains the identity of the access client and the response data sent by the TCP server, and sends the response data to the corresponding access client. The invention binds the TCP data and the response data of the TCP server with the identity information of the accessing client respectively, through the communication between the proxy client and the UDP server, the information exchange between the public network and each access client within the LAN can be completed, so that the LAN server without the public network can have the service ability of the public network and can support the ability of one LAN server to provide servers to multiple access clients.

Description

technical field [0001] The invention relates to the field of information transmission, in particular to a communication method and a communication system. Background technique [0002] With the popularization of network mobile office, in many cases, users need to access the enterprise LAN through the Internet; or real-time data communication is required between multiple regions of the enterprise. However, due to the scarcity of public network IPv4 resources, many companies do not have public network IP, and the devices in the external network use public network addresses, each address is globally unique, and the LAN devices use LAN addresses, which are only used in the LAN Effectively, there are multiple LAN devices around the world using the same LAN address. Therefore, the devices in the external network cannot directly communicate with the devices in the local area network. As a result, enterprise users cannot directly use the company's file resources in the external env...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L29/06
CPCH04L61/2528H04L61/256H04L61/2589H04L63/0428H04L69/161
Inventor 邹志华
Owner BEIJING ZHIYOU XINCHENG TECH CO LTD
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