Cisco NAC Appliance is described as ', formerly known as Cisco Clean Access, is a network admission control (NAC) system developed by Cisco Systems designed to produce a secure and clean network environment' and is an app in the Network & Admin category. There are four alternatives to Cisco NAC Appliance for Windows, Linux, Mac, Online / Web-based and Self-Hosted solutions. The best alternative is PacketFence, which is both free and Open Source. Other great apps like Cisco NAC Appliance are openNAC (Free, Open Source), ThingsPage (Paid) and LANeye (Paid).
ThingsPage Sensor software detects and authenticates endpoints without a dedicated hardware. No PC agents are required. Installing the Sensor at one Windows machine at each network makes it easy to have centralized management of multiple networks.
LANeye monitors the network to detect and prevent unknown computers from getting access to your wired or wireless network. Download free 30 days trial. Easy to setup (within minutes). In 4/2019 it only works on Windows 32 bit; officially Windows XP, Vista, 2000, 7.