Barracuda Networks VERSION SP4 manual Barracuda NG Access Monitor, Port Security

Chapter 11

Barracuda NG Access Monitor

11.1 Overview

11.1.1Access Monitor

The Access Monitor is the key component of Barracuda NG Network Access Client. Its responsibilities include:

•Collecting information from the client computer necessary for health evaluation, including

•Workstation identity information

•Operating system information and patch level

•Antivirus and Antispyware information

•Communication with the Access Control Server

•Taking security measurements dependent on the health evaluation result returned by the Access Control Server. This includes

•Downloading and installing necessary updates

•Restricting network access

•Executing Antivirus / Antispyware updates and starting scans or updates

11.1.2Port Security

The Barracuda NG Network Access Client implements the IEEE 802.1X standard. The IEEE 802.1X standard defines a client-server-based access control and authentication protocol that prevents unauthorized clients from connecting to a LAN through publicly accessible ports unless they are authenticated. The credentials for authentication are obtained by the client computer from the Access Control Server, based on the client computer's health evaluation result, restricting or granting network access to the client computer.

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