A wireless network device and its method for searching mobile intelligent terminals

Abstract

The invention relates to a wireless network device and a method for searching for a mobile intelligent terminal. The present invention provides a method for an AP to actively search for STAs. The steps of the method include: S200: The wireless network device obtains a data frame at the entrance of a beacon frame, and identifies all the STAs within the coverage of the wireless network device. MAC addresses of other wireless network devices, updating the MAC addresses of other wireless network devices in the first hash table of the wireless network device; S300: The wireless network device obtains data at the entrance of all wireless data packets frames, from which the MAC addresses of all the smart mobile terminals within the coverage of the wireless network device are screened out, and the MAC addresses of the smart mobile terminals are updated in the second hash table of the wireless network device; wherein , the first hash table and the second hash table use the same hash value algorithm.

Description

technical field [0001] This patent application relates to wireless network technology, in particular to a monitoring method for actively sniffing STAs by APs. Background technique [0002] With the development of the Internet and wireless networks, wireless network access points and all kinds of wireless portable devices have entered all aspects of people's lives and become an indispensable part of life. The control of data packets transmitted by wireless terminals has also been continuously optimized. Through air interface packet capture analysis, the mobile phone does not send probe frames when the WiFi is turned on but the screen is black, which will bring a lot of trouble to the network equipment that detects the probe data frames. [0003] AP is the abbreviation of (Wireless) Access Point, that is, (wireless) access point. If the wireless network card can be compared to the Ethernet card in the wired network, then the AP is the HUB in the traditional wired network, and...

AI Technical Summary

Problems solved by technology

[0005] When the existing mobile phone WiFi is turned on, the probe data frame will be sent continuously, so grabbing the probe at the data packet entrance of the probe frame can effectively grab the probe frame of the wireless terminal to obtain the corresponding information resources. However, with With the development and optimization of wireless terminals, the current wireless terminals do not send probe data frames when WiFi is turned on and the screen is black, so the method of detecting probe frames is not so effective

[0006] The existing solution is to capture the information of all data packets at the entrance of all data packets to detect the terminal mac, so that it is indeed possible to capture the data packets of the wireless terminal to obtain the mac of the wireless terminal, but this method Capture the wireless data packets sent by the surrounding wireless routers together, so that the wireless terminal mac uploaded to the (wireless management) server will always have the mac information of the surrounding wireless routers, which not only wastes network traffic, but also uploads to the server wireless terminal mac The information is not accurate, which interferes with the information collected by big data, and long-term capture consumes both the network and the hard disk;

[0007] The existing improved solution is still to capture the data packet at the entrance of the probe data frame, which can ensure that the captured data frame is sent by the wireless terminal STA, rather than the data frame sent by the surrounding wireless router AP. But it will miss a lot of opportunities to capture the data frames sent by the wireless terminal STA;

[0008] Existing solutions always have problems of one kind or another and are not perfect

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