Cisco NAC Appliance
Formerly known as Clean Access, the NAC Appliance is designed to be the first point of contact for users entering a corporate network, and enables administrators to authenticate and authorize users and enforce organizational security policies before network access is granted. The system enables the enforcement of a number of different policies, depending on device type, user and role. Machines that are out of compliance can be directed to remediation servers for delivery of patches and other updates.
The NAC Appliance scored highly in virtually every category in our readers' assessment, but was especially strong in its ability to integrate with customers' existing infrastructures and its scalability. Readers also praised the appliance's variety of enforcement options and gave Cisco high marks for its service and support.