LORCON (Loss Of Radio CONnectivity) has been described as a pseudo underground toolkit for generating and transmitting arbitrary 802.11 frames onto the wireless medium. LORCON has contributed to tools such as Metasploit, Airpwn and several privately-developed testing tools, and has been instrumental in influencing the state of wireless security. In this presentation, we'll explore the multiple uses of LORCON, demonstrate its capabilities, and help you get started writing your own 802.11 analysis tools with practical examples for assessing wireless security and for wireless troubleshooting and analysis.