VPN gateway non-perception switching method and device based on single-arm deployment

A switching device and non-sensing technology, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of heavy workload, time-consuming impact on availability, etc., achieve automatic switching, ensure communication stability, and save labor The effect of the operation

Active Publication Date: 2020-12-18
信联科技(南京)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there are many intranet devices, this will bring a large workload to the maintenance pe

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  • VPN gateway non-perception switching method and device based on single-arm deployment
  • VPN gateway non-perception switching method and device based on single-arm deployment
  • VPN gateway non-perception switching method and device based on single-arm deployment

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Embodiment Construction

[0043] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] The present invention proposes a VPN gateway non-perception switching method and device based on single-arm deployment, to realize safe and fast deployment of VPN gateways, and non-perception and non-intervention switching when a fault occurs. First, the VPN gateway is bypassed to the network port of the switch, and the default route of the internal and external network of the VPN gateway is automatically modified through ARP spoofing, so that the network data traffic of the internal and external network flows through the VPN gateway, so that the encryption and decryption of network data can be performed. When the VPN gateway fails, it will stop sending ARP spoofing packets, and the default route of the internal and external network will automatically restore to the original routing information soon. At the same t...

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Abstract

The invention relates to a VPN gateway non-perception switching method and device based on single-arm deployment, aiming at a VPN gateway accessed by a single arm between an internal network and an external network, a deception packet mode is designed and adopted to broadcast to each terminal of the internal network and send to a router; the default route of each terminal of the intranet and the route of the router towards the intranet are enabled to point to the VPN gateway, VPN communication between the intranet and the extranet is realized, and under the condition that the VPN communicationfails, by combining the life duration of the internal and external networks in the deception packet, default routing recovery of each terminal of the intranet and routing address recovery towards theintranet in the router are realized, rapid and automatic switching from VPN communication to common communication is obtained, a large amount of manual operation is saved, the stability of data transmission is improved, the actual application efficiency of the VPN can be effectively improved, and the communication stability is guaranteed.

Description

technical field [0001] The invention relates to a VPN gateway non-perception switching method and device based on single-arm deployment, and belongs to the technical field of VPN applications. Background technique [0002] The VPN gateway is connected to the Internet through a special encrypted communication protocol, and a dedicated communication line is established for two or more intranets in different geographical locations. VPN gateways provide user access control and data transmission encryption / decryption functions to ensure the confidentiality and integrity of user data, and are widely used in enterprise networks. [0003] VPN meets the requirements of enterprises for network flexibility, security, economy, scalability, etc., and has won more and more favor. With the rapid expansion of different areas of enterprises, office areas and mobile office workers, The use of VPN gateways is increasing. However, most of the current deployment methods of VPN gateways are con...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26H04L29/06H04L29/12
CPCH04L41/0654H04L43/0805H04L43/10H04L61/103H04L63/0272H04L63/0428H04L63/20
Inventor 张胜张云李明柱
Owner 信联科技(南京)有限公司
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