A working method of internet ddos ​​defense system based on internet of things

Abstract

The invention relates to a working method of an Internet DDoS defense system based on the Internet of Things, comprising the following steps: an OpenFlow controller obtains topology information; an information flow collection module collects information flows propagated in a local area network; the OpenFlow controller exchanges the information flows in a local area network switch , The update rate of the message when it is transmitted in the LAN is calculated; the traffic monitoring module will calibrate the information flow exceeding or lower than the message update rate limit; the LAN adapter calculates the real-time processing rate of the information flow by itself and the LAN switch; the configuration module Adapt the packet update rate to the real-time processing rate; the OpenFlow controller transmits the adapted information flow to the corresponding LAN network; the LAN host selects the information flow with the corresponding update rate of the information flow message according to its own real-time processing rate. ; The LAN host transmits the information flow exceeding or lower than the speed limit of its own processing rate to the IoT device; the LAN switch diffuses the current information flow of the IoT device.

Description

technical field [0001] The invention relates to the field of network security, in particular to a working method of an Internet DDoS defense system based on the Internet of Things. Background technique [0002] With the rapid development and in-depth application of computer science and technology, changes in cyberspace are constantly changing and affecting people's way of life. As people rely more and more on the Internet, many confidential information about enterprises, individuals, and even countries are involved on the Internet, so the issue of network security has always been an important topic in the process of technological development. Among the many network attack methods existing on the Internet at present, Distributed Denial of Service Attack (Distributed Denial of Service Attack, DDoS for short) is the most common and highly destructive attack method. Most distributed denial-of-service attacks come from botnets, which cooperate with each other to launch denial-of...

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Problems solved by technology

[0004] Due to the simple method of DDoS attack and strong concealment, so far, there is no means to completely defend against this kind of attack; The defense of DDoS attack, the problem of being unable to make effective defense and counterattack to the attack in time under the attack of widely distributed DDoS like this, the present invention provides a kind of working method of the Internet DDoS defense system based on the Internet of Things

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