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Wireless device and method for discriminating administrative frame

A wireless device and frame management technology, applied in the field of network communication, can solve problems such as mobile station denial of service attacks, and achieve the effect of avoiding denial of service attacks

Inactive Publication Date: 2007-11-21
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, if the above-mentioned unassociation frame or deauthentication frame is sent by an attacker pretending to be an access point, it will cause a Deny of Service attack (Attack) on the mobile station.

Method used

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  • Wireless device and method for discriminating administrative frame
  • Wireless device and method for discriminating administrative frame
  • Wireless device and method for discriminating administrative frame

Examples

Experimental program
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Embodiment Construction

[0018] Referring to FIG. 1 , it is a schematic diagram of a management frame 1000 in an embodiment of the present invention. In this embodiment, the management frame 1000 may be a disassociation frame or a deauthentication frame. The management frame 1000 includes a Media Access Control (MAC) header (Header) 1100 , a Reason Code (Reason Code) 1200 and a Frame Check Sequence (Frame Check Sequence, FCS) 1300 . The MAC header 1100 includes a type field 1110 and a subtype field 1120 .

[0019] The type field 1110 and the subtype field 1120 are used to indicate the type of the management frame 1000 . When the type field 1110 and the subtype field 1120 are 00 and 1010 respectively, then the management frame 1000 is a disassociation frame. When the type field 1110 and the subtype field 1120 are 00 and 1100 respectively, the management frame is a deauthentication frame. In this embodiment, according to the type field 1110 and subtype field 1120 of the two frames, it can be judged w...

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Abstract

The method comprises: receiving the management frame to be discriminated; according to the management frame to be discriminated, determining a new frame; according to the new frame, transmitting the class frame to the expected source device; wherein, if the class of the class frame is higher than its corresponding frame above new frame determining step; deciding if receiving a desired frame; wherein, the desired frame has same frame type with the management frame to be discriminated; if receiving the desired frame, the management frame is determined to be a real one.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a wireless device and a method for identifying management frames thereof. Background technique [0002] When the mobile station communicates wirelessly with the access point, if the mobile station receives a disassociation frame (Disassociation Frame) or a deauthentication frame (DeAuthentication Frame) from the access point, under normal circumstances, the mobile station cannot identify the disassociation frame or deauthentication frame. Therefore, the mobile station will reconnect with the access point, re-authenticate or roam. [0003] However, if the above-mentioned disassociation frame or deauthentication frame is sent by an attacker pretending to be an access point, a Deny of Service attack (Attack) will be caused to the mobile station. Contents of the invention [0004] In view of this, it is necessary to provide a wireless device that can identify the authenticity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/02
Inventor 唐正文
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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