Cisco introduced a new technology initiative called Network Admission Control (now commonly referred to as Network Access Control or NAC) NAC was seen as a way to alleviate this threat by authenticating (i.e. 802.1X) and inspecting PCs before providing Layer 3 network access. While NAC/NAP/TNC focused exclusively on Windows PCs, EVAS acts as a network tollbooth for any type of connected device iPads, Androids, printers, sensors, control systems, etc.”]