FIREWALL
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
54
HITRON CGN USER’S GUIDE
4
FIREWALL
This chapter describes the screens that display when you click
Firewall
in the
toolbar. It contains the following sections:
Firewall Overview
on page
54
The Firewall Options Screen
on page
56
The Filter Setting Screen
on page
57
The Forwarding Screen
on page
65
The Port Triggering Screen
on page
69
The DMZ Screen
on page
72
4.1
FIREWALL OVERVIEW
This section describes some of the concepts related to the
Firewall
screens.
4.1.1
FIREWALL
The term “firewall” comes from a construction technique designed to prevent the
spread of fire from one room to another. Similarly, your CGN’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.
