Security; Security Overview; Firewall - Hitron CGNVM User Manual

6

Security

This chapter describes the screens that display when you click Security in the
toolbar. It contains the following sections:
Security Overview
The Security: Firewall Screen
The Security: Service Filter Screen
The Security: Device Filter Screen
The Security: Keyword Filter Screen
6.1

Security Overview

This section describes some of the concepts related to the Security screens.
6.1.1

Firewall

The term "firewall" comes from a construction technique designed to prevent the
spread of fire from one room to another. Similarly, your CGNVM's firewall prevents
intrusion attempts and other undesirable activity originating from the WAN, keeping
the computers on your LAN safe. You can also use filtering techniques to specify the
computers and other devices you want to allow on the LAN, and prevent certain traffic
from going from the LAN to the WAN.
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SECURITY