Background: One of the much waited for features in the NAC 4.1(3) release is the NAC Web Agent. " The Cisco NAC Web Agent provides temporal vulnerability assessment for client machines. Users launch the Cisco NAC Web Agent executable, which installs the Web Agent files in a temporary directory on the client machine via ActiveX control or Java applet. When the user terminates the Web Agent session, the Web Agent logs the user off of the network and their user ID disappears from the Online Users list." In short, it is a temporary agent that gives the ability to have a detailed posture assessment performed on a machine that it is not desired to or can't install software on. Figure 1 – Cisco NAC Web Agent The Spotlight: The NAC Web Agent is a great addition to the capabilities of Cisco NAC Portfolio. The following is a functionality to agent type(CAA vs. Web Agnet) comparison. It includes some of the major benefits of each agent type to give everyone a better idea of where t...