To demonstrate, I used a probe request type to illustrate one possibility. Once the driver is installed, we can create and test a custom 802.11 packet. I have provided commands to install and uninstall the driver. Obviously, in order to use this function, the Packet11 driver must be installed before using this function. Now, applications can create and send 802.11 packets using DeviceIoControl. I have implemented a new technique since this article was posted that allows a filter driver to originate 802.11 packets without modifying OS generated packets. I recommend having a second wireless adapter in monitor mode to look at the packets as they are sent in the air. *I tested Packet11 on Atheros USB WiFi, Intel PCI WiFi and Rosewill adapters. However, creating and modifying packets in the 802.11 layer is undocumented for Windows. Since Windows Vista, Network Driver Interface Specification (NDIS) 6 has given third party Windows developers a better opportunity to manage and extend WiFi adapter capabilities. Having more control over native WiFi packets will also extend WiFi capabilities in Windows. Linux has been able to modify native WiFi packets for ages and extend WiFi technology, i.e., MadWiFi. Packets constructed in the 802.11 layer are native to the wireless miniport. To the best of my knowledge, there are no other 802.11 packet injectors for Windows without special adapters (AirPCap). It supports several USB WiFi adapters allowing to monitor the most modern WiFi networks following WiFi6 / WiFi 802.11ac and 802.11ax standards. Packet11 is the first step to providing software controlled packets for wireless testing and routing. Acrylic WiFi Sniffer is Tarlogic latest software aimed to analyze and capture WiFi communications, and evaluate WiFi security. Mesh networking and virtual access points are two potential and beneficial applications of managing wireless packets. Although software controlled packets can be used maliciously, they can also provide a better user experience. Typically, packet injection is used to test wireless security or break WEP keys (airplay) with "software controlled packets". The command line application demonstrates how to use the Packet11 service via DeviceIoControl. The package contains a network driver and an open source command line application. The network driver in this package provides a means for developers to create 802.11 packets in user space and send them on the 802.11 layer. This project is intended for Windows wireless network developers, and assumes the reader is familiar with the concept of packet injection, 802.11 frames, and IP protocols.
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