Access method and system between multiple level domain platforms

Abstract

The invention provides an access method and system between multiple level domain platforms. The method is applied to an upper level domain platform. The method comprises the steps that an access request sent by a user terminal is received, a lower level domain identifier is searched for, the access request is sent to a lower level domain platform corresponding to the lower level domain identifier, a lower level domain mapping item sent by the lower level domain platform is received, and an upper level domain mapping item is built; a building message is received, and an upper level domain first-network-segment address conversion item is built; an access message sent by the user terminal for the first time is received, an upper level domain second-network-segment address conversion item is built, conversion is carried out according to the upper level domain second-network-segment address conversion item, and the conversed access message is sent to the lower level domain platform. By the application of the access method and system, access of multiple level domain platforms is completed through combination between the equipment identifier and the lower level domain identifier, and the upper level domain platform can achieve port reuse, so that the access range is widened, and the access efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to an access method and system between multi-level domain platforms. Background technique [0002] With the development of network communication technology, the entire security industry has entered the era of network monitoring, and requires real-time access to the monitoring images of front-end equipment across the wide area network. Among them, the wide area network is a cross-regional data communication network, which uses equipment provided by telecom operators as an information transmission platform. [0003] In the prior art, when the user terminal on the upper-level domain platform communicates with the front-end equipment attached to the lower-level domain platform through the WAN, the two are isolated on the physical network, so that the user terminal cannot directly log in to the front-end equipment for access. . The general access method is: the upper-leve...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an access method and system between multi-level domain platforms to solve the problem in the prior art when an upper-level domain platform is connected to multiple lower-level domain platforms, and each lower-level domain platform is connected to multiple front-end devices. There will be a shortage of port numbers, which will limit the access range of the upper-level domain platform and reduce its access efficiency

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