Vonage VDV21-VD User Guide - Page 64

Vonage V-Portal User Guide • Filter Proxy A proxy is a computer that acts as a bridge between two other computers that use different standards, formats, or protocols. • Block Fragmented IP Packets This option prevents all fragmented IP packets from passing through the firewall. When the Blocked Connections option is selected on the Firewall Logs page and this option is selected, all fragmented IP packets will be logged. • Port Scan Detection A port scan is a procedure used by computer hackers to determine what ports are open or in use on a network. Using this information the hacker can then attack the ports that are open and try to gain access to your LAN. This option detects and blocks port scan activity originating on both the LAN and the Internet. When the Blocked Connections option is selected on the Firewall Logs page and this option is selected, all port scan activity fragmented IP packets will be logged. • IP Flood Detection An IP Flood is when a user or group of users intentionally causes an inordinate amount of data to be sent to one particular IP Address. This option detects and blocks packet floods originating on both the LAN and the Internet. • Firewall Protection A firewall is a protective barrier between your computer and the Internet. The firewall helps to guard your computer against malicious users and computer viruses. We recommend always leaving this option enabled. Activating Web Content Filter features To setup Web Content Filtering: From the home page, click on the Advanced Setup tab. Click on the Filtering sub-menu. The Web Content Filter section is at the bottom of that screen: View the Terms of Service by visiting the Vonage website at www.vonage.com/tos. Pay particular attention to 64 Section 11 which explains limitations on Warranty, Remedy and Liability.