WLAN Network Device Handling Stolen Client Devices
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Solution Overview
Problem
Current mechanisms for handling stolen wireless devices in wireless local area networks (WLANs) are inadequate, as they primarily rely on denying access based on stolen device identifiers, failing to provide comprehensive safeguards or facilitate law enforcement investigations.
Innovation Solution
Implementing a system where network devices flag stolen devices with a special user role, redirecting them to a captive portal for registration, allowing limited access, and employing enhanced monitoring and tracking techniques, including deep packet inspection and client-side applications, to gather and share information with external agencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stolen devices are completely blocked from WLAN access, then security is improved, but law enforcement cannot gather investigation information
Solution Approach 1:
The patent introduces a special user role as an intermediary between complete access denial and normal access. This role allows the stolen device to connect to the WLAN under controlled conditions, enabling law enforcement to gather investigation information while maintaining security through restricted access privileges and monitoring capabilities.
2Reliability
If stolen devices are completely blocked from WLAN access, then security is improved, but device location tracking becomes impossible
Solution Approach 1:
The special user role serves as an intermediary that enables location tracking functionality while maintaining security. By allowing the stolen device to connect with restricted privileges, the system can monitor and track the device's location through WLAN associations without compromising overall network security.
3Loss of information
If enhanced monitoring operations are performed on stolen devices, then investigation capability is improved, but network device processing load increases
Solution Approach 1:
The patent applies local quality by implementing enhanced monitoring operations selectively only on devices with the special user role, rather than uniformly across all WLAN devices. This targeted approach allows investigation information to be gathered from stolen devices while avoiding unnecessary processing load on the network device for legitimate users.
Data Source
AI summary
Example method includes: receiving, by a network device, a connection request to a wireless local area network (WLAN) from a client device; determining, by the network device, that the client device is associated with a particular role indicating that the client device is stolen; and performing, by the network device, a set of special handling operations that facilitates maintaining an active connection between the client device and the WLAN, collecting and reporting information about the client device to an investigation agency.