Communication protocol switching method and device

A communication protocol and protocol technology, applied in the field of communication, can solve problems such as inability to realize intercommunication, and achieve the effect of solving transition problems

Active Publication Date: 2021-04-16
QI-ANXIN LEGENDSEC INFORMATION TECH (BEIJING) INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For related technologies, products supporting standard protocols and products supporting protocols stipulated in the "IPSec VPN Technical Specifications" in the market cannot achieve interoperability, and no effective solutions have been proposed.

Method used

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  • Communication protocol switching method and device
  • Communication protocol switching method and device
  • Communication protocol switching method and device

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Embodiment Construction

[0026] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0027] Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the pres...

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Abstract

The present invention provides a communication protocol switching method and device, wherein the method includes: the VPN gateway device receives a data packet from the sender during the main mode negotiation process; the VPN gateway device obtains the data packet from the data packet The feature information; the VPN gateway device determines the first communication protocol adopted by the sender according to the feature information; the VPN gateway device switches the currently supported second communication protocol to the first communication protocol. Adopting the above-mentioned technical solution provided by the present invention solves the problem in related technologies that products supporting standard protocols in the market and products supporting protocols stipulated in the "IPSec VPN Technical Specification" cannot realize intercommunication. By judging that the other party uses a standard The protocol is still the protocol stipulated in the "IPSec VPN Technical Specifications", and can automatically switch to the negotiation protocol supported by the other party according to the protocol used by the other party.

Description

technical field [0001] The present invention relates to the communication field, in particular to a communication protocol switching method and device. Background technique [0002] The market of Virtual Private Network (Virtual Private Network, referred to as VPN) related technologies and products applying VPN technology is very mature. At present, the most used VPN products are mainly based on IP Security Protocol (Internet Protocol Security, referred to as IPSec) VPN ( Such as figure 1 As shown), a data encryption key is generated after key negotiation through the Internet Key Exchange (IKE) protocol, and the transmitted data is encapsulated and encrypted with this key. [0003] Of course, it should be noted that the standard VPN technology and its products have certain defects, and the vulnerabilities caused by these defects are often exploited by hackers. For example, in the current IPSec VPN products, there are main mode and aggressive mode. Two authentication method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/46
CPCH04L63/0272H04L69/08
Inventor 任献永
Owner QI-ANXIN LEGENDSEC INFORMATION TECH (BEIJING) INC
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