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A message detection method and device

A packet detection and packet technology, applied in the field of network communication, can solve the problems of network security equipment performance consumption, affecting the normal operation of equipment, etc., to reduce the number of repeated threat packets sent, reduce the number of in-depth inspections, and improve processing capabilities Effect

Active Publication Date: 2019-04-09
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the client device still fails to pass the DPI check, the above process will be repeated continuously, which will cause performance consumption of the network security device and affect the normal operation of the device

Method used

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  • A message detection method and device
  • A message detection method and device
  • A message detection method and device

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Embodiment Construction

[0020] 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.

[0021] 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", "the", 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...

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Abstract

The invention provides a method and a device for detecting a message, which are applied to a network security device. The method comprises steps: a message is received; whether a first threat record sheet entry exists in a threat record sheet is judged; when the first threat record sheet entry is judged to exist in the threat record sheet, whether the reset times in the first threat record sheet entry are larger than or equal to a preset reset time threshold is judged; and when the reset times in the first threat record sheet entry are larger than or equal to the preset reset time threshold and the message blocking time duration is smaller than a preset first blocking time duration, the message is discarded, wherein the message blocking time duration is the time duration for blocking the message matched with the first threat record sheet entry. Thus, the resource consumption of the network security device can be reduced, and the normal service processing ability is improved.

Description

technical field [0001] The present application relates to the technical field of network communication, in particular to a message detection method and device. Background technique [0002] DPI (Deep packet inspection, deep packet analysis) is an application layer-based traffic detection and control technology, which is widely used in network security devices. When a network security device detects a threat packet through the DPI function, it performs operations such as alarming, discarding, resetting, and blocking the threat packet. [0003] Currently, the reset operation is only valid for a single session, and subsequent traffic blocks traffic belonging to the same session based on the quintuple information. However, some client devices will actively change the source port number to re-initiate the connection after being reset. The network security device cannot perceive that the current session and the reset session belong to the same session, so it regards the connecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/1408
Inventor 李金英
Owner XINHUASAN INFORMATION TECH CO LTD
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