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Method and device for keeping alive ipsec tunnel based on nat equipment

A device and tunnel technology, applied in the field of network communication, can solve the problems of occupying NAT device resources and redundant keep-alive detection packets, and achieve the effect of reducing packet transmission and saving NAT device resources.

Active Publication Date: 2020-08-04
杭州迪普信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, the present application provides a NAT-based IPSec tunnel keep-alive method and device to solve the problem of sometimes sending redundant keep-alive detection messages and occupying NAT device resources

Method used

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  • Method and device for keeping alive ipsec tunnel based on nat equipment
  • Method and device for keeping alive ipsec tunnel based on nat equipment
  • Method and device for keeping alive ipsec tunnel based on nat equipment

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Embodiment Construction

[0021] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0022] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "an...

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Abstract

The invention provides an IPSec tunnel keep-alive method and device based on NAT equipment. The method is applied to the NAT equipment, and comprises the steps of obtaining an NAT keep-alive detectionperiod and an IPSec keep-alive detection period; comparing the NAT keep-alive detection period with the IPSec keep-alive detection period; and if the NAT keep-alive detection period is greater than or equal to the IPSec keep-alive detection period, stopping NAT keep-alive detection, and starting IPSec keep-alive detection. By applying the embodiment of the invention, message sending can be reduced, and NAT equipment resources are saved.

Description

technical field [0001] The present application relates to the technical field of network communication, and specifically designs an Internet Protocol Security (IPSec) tunnel keep-alive method and device based on a Network Address Translation (NAT) device. Background technique [0002] A virtual private network (Virtual Private Network, VPN) is to establish a private network on a public network for encrypted communication. NAT allows VPNs using private addresses to connect to the Internet or other Internet Protocol (Internet Protocol, IP) networks. The header converts the IP address of the private network into the IP address of the public network, so that the data packets of the private network can be transmitted in the public network. If each NAT translation entry saved on the NAT device is not used within a set period of time, it will be deleted, and the NAT session corresponding to the deleted NAT translation entry (the call between the local end and the opposite end, det...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L29/08H04L29/12
CPCH04L43/10H04L61/2503H04L61/2592H04L67/145
Inventor 张闻闻
Owner 杭州迪普信息技术有限公司
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