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A normalization method of tcp packets based on mimic edge gateway

An edge gateway and data packet technology, which is applied in the field of computer networks and can solve problems such as the inability to guarantee the security of the mimetic environment.

Active Publication Date: 2021-05-11
ZHEJIANG LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This implementation requires the proxy server to establish multiple TCP connections with hosts inside and outside the mimic environment. Once the proxy server is attacked, the security of the mimic environment cannot be guaranteed.

Method used

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  • A normalization method of tcp packets based on mimic edge gateway
  • A normalization method of tcp packets based on mimic edge gateway
  • A normalization method of tcp packets based on mimic edge gateway

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Embodiment Construction

[0016] In order to realize the purpose of the present invention, the mimetic edge gateway should have an array of data structures as described in Table 1-3 to store key information of the TCP session.

[0017] Table 1: Session cache public subsection structure table

[0018]

[0019] Table 2: Session cache executive sub-segment structure table

[0020]

[0021] Table 3: Session cache option subsection structure table

[0022]

[0023] The mimetic edge gateway of the present invention uses two different queues to correspond to the executive body inside the mimetic environment and the remote host outside the mimetic environment respectively, and the executive bodies inside the mimetic environment share the same IP address; TCP data packets enter through different input network ports Mimic edge gateway.

[0024] Based on this, the present invention provides a kind of normalization method based on the TCP packet of mimetic edge gateway, comprises the following steps:

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Abstract

The invention discloses a method for normalizing TCP data packets based on a mimicry edge gateway, which belongs to the technical field of computer networks. The mapping relationship between each host TCP in the mimic environment and this TCP connection makes each host in the mimic environment communicate with the external host through the same TCP connection. Based on the mimic edge gateway, the invention accelerates the processing speed of TCP data packets inside the mimic gateway by caching key information, and can effectively support various industrial protocols such as MQTT and ModeBus.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a method for normalizing TCP data packets based on a mimetic edge gateway. Background technique [0002] With the gradual expansion of the scale of the industrial Internet, the complexity of the new network architecture and the diversification of network protocols, the means of network attacks are also becoming more subtle and complex. Traditional security protection methods have been difficult to meet the requirements of network security, so constructing an adaptive endogenous security system has become a new requirement in the field of industrial Internet. As the boundary of the mimicry domain, the mimicry edge gateway plays the role of a portal to isolate the mimicry network from the non-mimetic network, which is of great significance for building an adaptive endogenous security system. In the prior art, a proxy server is set to function as a gateway to manage the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L69/163
Inventor 孙天宁
Owner ZHEJIANG LAB