A proxy method for tcp transport protocol

Abstract

A TCP transmission protocol proxy method, the method sets a proxy client on the client and a proxy server on the server; the proxy client sends a handshake message to the server on behalf of the client and receives the TCP data packet sent by the server, and the proxy client sends a handshake message to the server on behalf of the client. The server receives the client's handshake message on behalf of the server, forwards the server's TCP data packets, and establishes and maintains a TCP connection between the proxy client and the proxy server through the intermediate communication network. The proxy client and the proxy server are using different communication When the network forwards data, the packets need to be properly processed to adapt to the transmission protocols of different networks. The invention can solve the communication breakpoint problem caused by the imperfect construction of the inter-regional communication network, enrich the data processing and transmission modes while ensuring the normal operation of the system, and meet the transmission requirements under various conditions.

Description

technical field [0001] The invention relates to the field of communication network and data transmission, in particular to a TCP transmission protocol agent method. Background technique [0002] Due to the inability to achieve full network coverage in remote areas such as mountainous grasslands, it has brought difficulties to information collection and data communication; or due to communication distance and other issues, the transmission delay is so long that under the existing TCP timeout management strategy Frequent overtime reconnection; or the need to process message content due to confidentiality, monitoring, etc. need to improve the original TCP transmission mode, and the TCP transmission protocol agent needs to be used when making improvements. [0003] TCP proxy is a common method for content-based network services. Its model is to add a proxy between the original intercommunicating TCP sender and destination, so that the two ends that originally interacted directly...

AI Technical Summary

Problems solved by technology

[0002] Due to the inability to achieve full network coverage in remote areas such as mountainous grasslands, it has brought difficulties to information collection and data communication; or due to communication distance and other issues, the transmission delay is so long that under the existing TCP timeout management strategy Frequent overtime reconnection; or the need to process message content due to confidentiality, monitoring, etc. need to improve the original TCP transmission mode, and the TCP transmission protocol agent needs to be used when making improvements

[0003] TCP proxy is a common method for content-based network services. Its model is to add a proxy between the original intercommunicating TCP sender and destination, so that the two ends that originally interacted directly interact with the proxy respectively. The existing TCP proxy Most of the research on the method is realized by using socket proxy, acting as two terminals, all data messages are transferred through the proxy program, and the content of the message can be processed, but the transmission mode is single, and it needs to be carried out under the same network, portability And the flexibility is poor, and it cannot solve the problem of timeout management in the communication environment with large communication delay

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