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Version 2.0, February 2012. Copyright
2012 Hitron Technologies
51
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
51
HITRON CGN2 USER’S GUIDE
Figure 13:
The WAN/LAN > Shared Media Screen
The following table describes the labels in this screen.
3.4
THE DEBUG SCREEN
Use this screen to perform ping and traceroute tests on IP addresses or URLs.
Table 13:
The WAN/LAN > Shared Media Screen
Group ID
Specify the name of the Network Neighborhood
workgroup whose users may access the shared media
on the USB device.
No.
This field displays the index number of the connected
USB device.
When no USB device is connected, no number displays
in this column.
Name
This field displays the identifying name of the connected
USB device.
When no USB device is connected, no name
displays in this column.
When a USB device is connected, click its
Name
to
view the files on the device. These files are shared
with the relevant user group (defined in the
Group ID
field).
Apply
Click this to save your changes to the fields in this
screen.
Refresh
Click this to reload the information in this screen. Do this
if you connect or disconnect a device from the
USB
port
and the information in this screen does not update
automatically.
Help
Click this to see information about the fields in this
screen.
Page 52 / 113
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
52
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
52
HITRON CGN2 USER’S GUIDE
Click
WAN/LAN
>
Debug
. The following screen displays.
Figure 14:
The WAN/LAN > Debug Screen
The following table describes the labels in this screen.
3.5
THE BACKUP SCREEN
Use this screen to back up your CGN2’s settings to your computer, to load settings
from a backup you created earlier, to reboot your CGN2, or to return it to its factory
default settings.
Click
WAN/LAN
>
Backup
. The following screen displays.
Table 14:
The WAN/LAN > Debug Screen
IP/URL
Enter the IP address or URL that you want to test.
Method
Select the type of test that you want to run on the
IP/
URL
that you specified.
Run
Click this to perform the test.
Help
Click this to see information about the fields in this
screen.
Page 53 / 113
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
53
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
53
HITRON CGN2 USER’S GUIDE
Figure 15:
The WAN/LAN > Backup Screen
The following table describes the labels in this screen.
Table 15:
The LAN > Backup Screen
Backup/Restore Setting
Backup Settings
Locally
Click this to create a backup of all your CGN2’s settings
on your computer.
Restore Settings
Locally
Use these fields to return your CGN2’s settings to those
specified in a backup that you created earlier.
Click
Choose File
to select a backup, then click
Restore
to return your CGN2’s settings to those
specified in the backup.
Reboot/Factory Reset
Reboot
Click
Reboot
to restart your CGN2.
Factory Reset
Click
Factory
to return your CGN2 to its factory default
settings.
NOTE:
When you do this, all your user-configured
settings are lost, and cannot be retrieved.
Help
Click this to see information about the fields in this
screen.
Page 54 / 113
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
54
HITRON CGN2 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 CGN2’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.
Page 55 / 113
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
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Version 2.0, February 2012. Copyright
2012 Hitron Technologies
55
HITRON CGN2 USER’S GUIDE
4.1.2
INTRUSION DETECTION SYSTEM
An intrusion detection system monitors network activity, looking for policy violations,
and malicious or suspicious activity. The CGN2’s intrusion detection system logs all
such activity to the
Firewall
>
Local Logs
screen.
4.1.3
PING
The CGN2 allows you to use the ping utility on the LAN (in the
WAN/LAN
>
Debug
screen) and also on the WAN (in the
Firewall
>
Firewall Options
screen). For more
information, see
Debugging (Ping and Traceroute)
on page
46
.
4.1.4
MAC FILTERING
Every networking device has a unique Media Access Control (MAC) address that
identifies it on the network. When you enable MAC address filtering on the CGN2’s
firewall, you can set up a list of MAC addresses, and then specify whether you want
to:
Deny the devices on the list access to the CGN2 and the network (in which case
all other devices can access the network)
or
Allow the devices on the list to access the network (in which case no other
devices can access the network)
4.1.5
IP FILTERING
IP filtering allows you to prevent computers on the LAN from sending certain types of
data to the WAN. You can use this to prevent unwanted outgoing communications.
Specify the IP address of the computer on the LAN from which you want to prevent
communications, and specify the port range of the communications you want to
prevent. The CGN2 discards outgoing data packets that match the criteria you
specified.

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