Patent ID: 7751393

Claim:
A system for monitoring wireless access to local area network of computers, the system comprising: a wired communication interface for coupling the system to a wired portion of a local area network; a wireless communication interface for coupling the system to a wireless medium; a processor unit; and a computer readable medium having stored thereon a first set of instructions for instructing the processor unit to: intercept using the wired communication interface one or more packets on the wired portion of the local area network which are associated with a device coupled to the wired portion of the local area network; determine from the intercepted one or more packets identity of a port on the device which is open from the wired portion side of the local area network; generate one or more packets in a selected format and directed to the open port on the device; transfer using the wired communication interface the generated one or more packets over the wired portion of the local area network to the device, the transferring being for testing whether the device outputs at least one packet from the transferred one or more packets to the wireless medium. detect using the wireless communication interface one or more packets transmitted in the wireless medium; identify the selected format in at least one packet from the detected one or more packets; and ascertain that the device provides wireless access to the wired portion of the local area network based at least upon the identifying of the selected format and identify unauthorized access to the wired portion of the local area network.