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A wimax system and its device and method for defending against ddos ​​attacks

A network system and illegal technology, which is applied in the field of network security defense in the field of wireless mobile communication, can solve the problems of lack of DDoS attack mechanism and inability to guarantee network security, and achieve the effect of enhancing security, defending against DDoS attacks, and ensuring stability

Active Publication Date: 2016-01-13
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a WiMAX system and its device and method for defending against DDoS attacks, which are used to solve the problem that the current WiMAX system lacks a mechanism for dealing with DDoS attacks and cannot guarantee network security. Effective defense against DDoS attacks

Method used

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  • A wimax system and its device and method for defending against ddos ​​attacks
  • A wimax system and its device and method for defending against ddos ​​attacks
  • A wimax system and its device and method for defending against ddos ​​attacks

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] Such as figure 1 As shown, a schematic diagram of a WiMAX network system with defense against DDoS attacks is given. The network elements of the system include:

[0039] The authentication, authorization and charging server 101 is one of the network elements of the WiMAX network for providing authentication, authorization and charging functions. The authentication, authorization and billing server 101 is used to store information such as quality of service information (QoSprofile) and user names, passwords, and certificates of legal users, and completes authentication and authorization calculations when users access the network and when users are online. fee process.

[0040] The application server 102 refers to the application server of the network serv...

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Abstract

The invention discloses a WiMAX system and its device and method for defending against DDoS attacks. One or more illegal packet interception modules are configured in the WiMAX system, and the illegal packet interception module is arranged between a base station and an access gateway. The interception module checks the validity of the uplink data sent by the terminal via the base station. If it is judged to be legal data, it will be directly forwarded to the access gateway and sent to the application server through the backbone network; if it is judged to be illegal data, the uplink data will be intercepted. It is further used to notify the base station to limit the bandwidth of the terminal sending the illegal data after intercepting the illegal data, record the detection log and generate an alarm. The invention can effectively defend against DDoS attacks initiated by a large number of terminals in the network, enhance the security of the network, and ensure the stability of the wireless network.

Description

technical field [0001] The invention relates to network security defense technology in the field of wireless mobile communication, in particular to a WiMAX (Worldwide Interoperability for Microwave Access) system and a device and method for defending against DDoS attacks. Background technique [0002] Distributed denial of service attack DDoS (DistributedDenialofservice) is a common network attack technique. The most basic DDoS attack is to use reasonable service requests to occupy too many service resources, so that the server cannot process the instructions of legitimate users, and many DoS attack sources attack a server together to form a DDoS attack. WiMAX (Worldwide Interoperability for Microwave Access) system is a broadband wireless access metropolitan area network technology based on the IEEE802.16d / e standard. It has the characteristics of high maximum data transmission rate, large capacity, and supports many online users. The large number of online users of the Wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/08H04L29/06H04W12/122H04W12/126H04W12/80
Inventor 林贵彬
Owner ZTE CORP
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