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Version 2.0, February 2012. Copyright
2012 Hitron Technologies
61
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
61
HITRON CGN2 USER’S GUIDE
Device Name
This displays the name of each network device that has
connected to the CGN2 on the LAN. To change the name
assigned to a device, edit it in the relevant field.
MAC Address
This displays the MAC address of each network device
that has connected to the CGN2 on the LAN.
Type
Use this field to specify the list to which you want to add
the device.
Select
Allow
to add the device to the
Allow Table
.
Select
Deny
to add the device to the
Deny Table
.
Manually-Added LAN Devices
Device Name
Enter the name to associate with a network device that
you want to permit or deny access to the CGN2 and the
network.
NOTE:
This name is arbitrary, and does not affect
functionality in any way.
MAC Address
Specify the MAC address of the network device that you
want to permit or deny access to the CGN2 and the
network.
Type
Use this field to specify the list to which you want to add
the device.
Select
Allow
to add the device to the
Allow Table
.
Select
Deny
to add the device to the
Deny Table
.
Add
Click this to add the device to the list you specified.
Cancel
Click this to clear the
Manually-Added LAN Devices
fields.
Apply
Click this to save your changes to the fields in the
Mac
Filter
tables.
Cancel
Click this to return the fields in the
Mac Filter
tables to
their last-saved values without saving your changes.
Help
Click this to see information about the fields in this screen.
IP Filtering Options
Table 17:
The Firewall > Filter Setting Screen (continued)
Page 62 / 113
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
62
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
62
HITRON CGN2 USER’S GUIDE
All IP Filtering Rules
Use this to turn IP filtering on or off.
Deselect the checkbox to enable IP filtering.
Select the checkbox to disable IP filtering (default).
NOTE:
You can add, edit or delete IP filtering rules only
when this checkbox is deselected.
Select
Select an IP filtering rule’s radio button (
) before
clicking
Edit
or
Delete
.
#
This displays the arbitrary identification number assigned
to the IP filtering rule.
Application Name
This displays the arbitrary name you assigned to the rule
when you create it.
Port Range
This displays the start and end values of the ports to which
communications from the specified IP addresses is not
permitted.
Protocol
This displays the type of communications that are not
permitted:
TCP
displays if communications via the Transmission
Control Protocol are not permitted.
UDP
displays if communications via the User
Datagram Protocol are not permitted.
TCP/UDP
displays if communications via the
Transmission Control Protocol and the User Datagram
Protocol are not permitted.
IP Address Range
This displays the start and end IP address from which
communications to the specified ports are not permitted.
Enable
Use this field to turn each IP filtering rule on or off.
Select this checkbox to enable the IP filtering rule.
Deselect this checkbox to disable the IP filtering rule.
Add New
Click this to define a new IP filtering rule. See
Adding or
Editing an IP Filtering Rule
on page
63
for information on
the screen that displays.
Edit
Select an IP filtering rule’s radio button (
) and click this
to make changes to the rule. See
Adding or Editing an IP
Filtering Rule
on page
63
for information on the screen
that displays.
Table 17:
The Firewall > Filter Setting Screen (continued)
Page 63 / 113
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
63
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
63
HITRON CGN2 USER’S GUIDE
4.3.1
ADDING OR EDITING AN IP FILTERING RULE
To add a new IP filtering rule, click
Add
in the
Firewall
>
Filter Setting
screen’s
IP Filtering Options
section.
To edit an existing IP filtering rule, select the rule’s radio button (
) in the
Firewall
>
Filter Setting
screen’s
IP Filtering Options
section and click the
Edit
button.
NOTE:
Ensure that the
Disabled
checkbox is deselected in order to add or edit IP
filtering rules.
The following screen displays.
Figure 18:
The Firewall > Filter Settings > Add/Edit Screen
Delete
Select an IP filtering rule’s radio button (
) and click this
to remove the rule. The deleted rule’s information cannot
be retrieved.
Apply
Click this to save your changes to the fields in the
IP
Filtering Options
section.
Cancel
Click this to return the fields in the
IP Filtering Options
section to their last-saved values without saving your
changes.
Help
Click this to see information about the fields in this screen.
Table 17:
The Firewall > Filter Setting Screen (continued)
Page 64 / 113
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
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Version 2.0, February 2012. Copyright
2012 Hitron Technologies
64
HITRON CGN2 USER’S GUIDE
The following table describes the labels in this screen.
Table 18:
The Firewall > Filter Settings > Add/Edit Screen
Application Name
Enter a name for the application that you want to block.
NOTE:
This name is arbitrary, and does not affect
functionality in any way.
Port Range
Use these fields to specify the target port range to which
communication should be blocked.
Enter the start port number in the first field, and the end
port number in the second field.
To specify only a single port, enter its number in both
fields.
Protocol
Use this field to specify whether the CGN2 should block
communication via:
Transmission Control Protocol (
TCP
)
User Datagram Protocol (
UDP
)
Both
TCP and UDP.
NOTE:
If in doubt, leave this field at its default (
Both
).
IP Address Range
Use these fields to specify the range of local computers’
IP addresses from which communications should be
blocked.
Enter the start IP address in the first field, and the end IP
address in the second.
To specify only a single IP address, enter it in both fields.
Connected Computers
Click this to see a list of the computers currently
connected to the CGN2 on the LAN.
Back
Click this to return to the
Firewall
>
Filter Settings
screen without saving your changes to the IP filtering
rule.
Apply
Click this to save your changes to the fields in this
screen.
Cancel
Click this to return the fields in this screen to their last-
saved values without saving your changes.
Help
Click this to see information about the fields in this
screen.
Page 65 / 113
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
65
Version 2.0, February 2012. Copyright
2012 Hitron Technologies
65
HITRON CGN2 USER’S GUIDE
4.4
THE FORWARDING SCREEN
Use this screen to configure port forwarding between computers on the WAN and
computers on the LAN. You can turn port forwarding on or off and configure new and
existing port forwarding rules.
Click
Firewall
>
Forwarding
. The following screen displays.
Figure 19:
The Firewall > Forwarding Screen
The following table describes the labels in this screen.
Table 19:
The Firewall > Forwarding Screen
All Port Forwarding Rules
Use this field to turn port forwarding on or off.
Select the checkbox to enable port forwarding.
Deselect the checkbox to disable port forwarding.
Select
Select a port forwarding rule’s radio button (
) before
clicking
Edit
or
Delete
.
#
This displays the arbitrary identification number
assigned to the port forwarding rule.
Application Name
This displays the arbitrary name you assigned to the rule
when you created it.

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