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A method and device for realizing network isolation through ip address masquerading

A technology of IP address and network isolation, applied in two-way working systems, electrical components, video conferencing systems, etc., can solve the problem of not guaranteeing the normal communication of network data.

Active Publication Date: 2021-08-10
厦门亿联通讯技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, a method and device for realizing network isolation through IP address masquerading are designed to solve the problem in the prior art that in multi-network card equipment, if there is an IP address conflict, the normal communication of network data cannot be guaranteed. urgent need on

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  • A method and device for realizing network isolation through ip address masquerading
  • A method and device for realizing network isolation through ip address masquerading
  • A method and device for realizing network isolation through ip address masquerading

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Embodiment

[0048] refer to image 3 , we assume that there are three network cards on the device, namely eth0, cam0, and ext0. The name of the network card used by the device to communicate with the slave device in the LAN. The network card structure framework is as follows figure 1 shown. Assuming that the IPs of cam0 and ext0 are both 192.168.0.23, and eth0 is connected to the external network, the allocation of IP will be automatically assigned by the external network. Since cam0 and ext0 are two independent LANs, you only need to bind a specific LAN card for data communication during programming, and they will not affect each other. But when there is also an IP of 192.168.0.23 in the external network, when eth0 communicates with the device on the external network, it will conflict with cam0 and ext0, causing the device to be abnormal.

[0049] The specific conflicts mainly exist in the following two aspects:

[0050] 1) For the IP packet received from the eth0 network card, if t...

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Abstract

The invention discloses a method and device for realizing network isolation through IP address masquerading. The method includes: A. Detecting the IP address of the internal network card in the network device and the device for data communication with the external network card in the network device IP address; B, judge whether the IP addresses of the two are the same; C, if the IP addresses of the two are the same, change the IP address of the intranet network card through IP address masquerading. The method and device for implementing network isolation through IP address masquerading provided by the present invention solves the problem in the prior art that in multi-network card equipment, if there is an IP address conflict, the normal communication of network data can be guaranteed, and no human effort is required. The problem of configuring parameters.

Description

technical field [0001] The invention relates to the technical field of network data transmission, in particular to a method and device for realizing network isolation through IP address masquerading. Background technique [0002] In the video conferencing system, with the various needs of customers and the continuous changes of the deployment environment, the video conferencing system becomes more and more complex. In the video conferencing system, data interaction through the network is the most common, and multiple network cards are often required. Generally, when using multiple network cards, one network card is used for external network communication, and Other network cards are used for device communication on the LAN. In multiple network cards, each network card device needs to occupy one more IP address, and the setting of each IP address is very critical. If the settings conflict with each other, it may cause abnormal device communication. The present invention aim...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04N7/15
CPCH04L61/3005H04N7/15H04L61/5046
Inventor 江虎
Owner 厦门亿联通讯技术有限公司