NAT penetration-based video monitoring access strategy and realization method

Abstract

The invention provides a NAT penetration-based video monitoring access strategy and a realization method. The method comprises a network protocol, a penetration server and an agent server, wherein the network protocol refers to a complete NAT penetration flow as the basis of communication between a subsequent apparatus and a server; the penetration server refers to performing processing on a communication command at an apparatus end according to the network protocol so as to finish a NAT penetration process in a cooperative manner, and carrying out basic management on the apparatus actively registered over the server; and the agent server refers to forwarding the data of communication between the apparatus and a client end after the NAT penetration process fails according to the network protocol. According to the invention, the simple and convenient equipment arrangements enable the problems and defects in the prior art to be well handled, and ideal effects are achieved.

Description

technical field [0001] The NAT penetration-based video monitoring access strategy and implementation method of the present invention mainly relate to the multimedia data network transmission technology in the field of video monitoring and the remote monitoring technology of equipment in a private network, and are mainly applicable to the field of security video monitoring. Background technique [0002] 1) In recent years, due to the development of information technology and the popularization of home networks, the demand for home-based video surveillance has become increasingly strong. Or the 3G network of most mobile phones is connected to the public network through NAT. The traditional monitoring method is not only cumbersome to configure, but also the server is under heavy pressure and the transmission effect is not good. [0003] 2) In order to meet the remote monitoring requirements of the equipment, most of the traditional remote monitoring methods use DDNS plus port m...

AI Technical Summary

Problems solved by technology

[0002] 1) In recent years, due to the development of information technology and the popularization of home networks, the demand for home-based video surveillance has become increasingly strong. Or the 3G network of most mobile phones uses NAT to access the public network. Using traditional monitoring methods is not only cumbersome to configure, but also the server is under heavy pressure and the transmission effect is not good.

[0003] 2) In order to meet the remote monitoring requirements of the equipment, most of the traditional remote monitoring methods use DDNS plus port mapping; this configuration method requires a certain setting authority for the gateway router, but this requirement It cannot be realized in the 3G network environment and some cluster management network environments, that is, it cannot meet the requirements of video remote monitoring

[0004] 3) In order to meet the remote monitoring requirements of the equipment, in the traditional method of realizing remote monitoring, a small part adopts the way of media server forwarding; but in this way, because all video data must be transferred in and out through the server, The server load will be very heavy, and due to the limitation of public network bandwidth, the devices that can be supported at the same time are limited, it cannot support a large number of devices, and the transmission effect is not good

[0005] 4) When realizing the remote monitoring requirements of equipment based on NAT penetration, due to the complexity of the domestic network environment; for example, there are multiple network operators, the communication bandwidth between network operators is unstable, and some In the regional network environment, there are still two-line exits (referring to two or more network operators), or the NAT type of some gateway devices is symmetrical; these situations may bring a lot of difficulties to NAT penetration , and even cause penetration failure; then how to increase the success rate of penetration in this network environment with the greatest probability, and how to use follow-up means to make up for the penetration failure in order to be transparent to users? It is also an important subject

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