Method and device for realizing network connection based on bidirectional NAT of proxy nodes

A technology of proxy node and network connection, which is applied in the field of network connection based on proxy node as bidirectional NAT, and can solve the problems of inability to realize many-to-many networking scheme.

Active Publication Date: 2020-09-25
北京天维信通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when using NAT technology for networking, only a single public network IP address can be effectively mapped to multiple private

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  • Method and device for realizing network connection based on bidirectional NAT of proxy nodes
  • Method and device for realizing network connection based on bidirectional NAT of proxy nodes
  • Method and device for realizing network connection based on bidirectional NAT of proxy nodes

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Embodiment Construction

[0053]Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0054] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0055] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, component...

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Abstract

The invention relates to a method for realizing network connection based on bidirectional NAT of a proxy node. The method comprises the steps of receiving an access request transmitted by a client, and obtaining an initial source address and a proxy destination address in the access request; performing DNAT conversion and SNAT conversion on the access request, and respectively converting the proxydestination address and the initial source address into an actual destination address and a proxy source address; sending an access request to the server based on the actual destination address and the proxy source address, wherein the proxy source address is a port address for data interaction with the server in a proxy server. The proxy server compatible with DNAT and SNAT is introduced as a connection bridge between two independent subnets, so that any node (i.e., a client) in the two independent subnets can access any node (i.e., a server) in the other subnet, and a multipoint-to-multipoint networking scheme of two intranet is realized.

Description

technical field [0001] The present disclosure relates to the technical field of the Internet, and in particular to a method and a device for implementing network connection based on a proxy node as bidirectional NAT. Background technique [0002] Since IPv6 (Internet Protocol Version 6, Internet Protocol Version 6) is highly incompatible with the current mainstream IPv4, the penetration rate of this network protocol is only about 30% since its birth. As the current mainstream network protocol, IPv4 has basically exhausted its network addresses. For the vast majority of IPv4 networking solutions, NAT (Network Address Translation, Network Address Translation) technology will be used in conjunction with private network address segments to alleviate the problem of insufficient IP address allocation. However, when using NAT technology for networking, only a single public IP address can be effectively mapped to multiple private IP addresses. That is, the NAT technology can only ...

Claims

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Application Information

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IPC IPC(8): H04L29/12
CPCH04L61/2528H04L61/256H04L61/59
Inventor 张新姜作毅陈睿彧
Owner 北京天维信通科技有限公司
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