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Chapter 4
Firewall
2.
The Gateway’s Home screen appears. Enter your user name and password,
then click Firewall from the row of icons at the top of the screen.
3.
The Firewall screen appears, with various firewall options listed in the menu
on the left side of the screen.
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VDSL2/GigE Wireless 11n Gateway
Firewall
Click
Firewall
from any Firewall screen to generate the Firewall screen. This
screen allows you to configure the firewall settings of the Gateway. If you make
changes in this screen, click
Apply
at the bottom of the screen to save them.
WAN Ping Block Mode
Click in the Enable radio button next to WAN PING block mode to activate the
WAN Ping Block Mode. This will block all pings originating from the WAN (i.e.,
the Internet) side of the network. Clicking Disable turns off the block mode.
IP Addressing Type
This option is non-configurable and always set to All Dynamic IP Addresses.
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Chapter 4
Firewall
Firewall Security Level
Select the level of firewall security level here, by clicking in the appropriate radio but-
ton. None provides no firewall security, while Low, Medium, and High provide differ-
ent levels of security, as displayed in the Firewall table in the lower part of the screen.
Additionally, after choosing a level of firewall security, you can manually allow (by
clicking in a check box to generate a check mark) or deny (by clicking in a check box
to delete a check mark) selected Internet services listed in the Firewall table.
IPv6 Firewall
Click
IPv6 Firewall
from any Firewall screen to generate the IPv6 Firewall screen.
This screen allows you to configure the IPv6 firewall settings of the Gateway, and
functions identically to the standard Firewall screen.
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VDSL2/GigE Wireless 11n Gateway
Port Forwarding
Activating Port Forwarding allows the network to be exposed to the Internet in
certain limited and controlled ways, enabling some applications to work from the
local network (game, voice, and chat applications, for example), as well as allowing
Internet access to servers in the local network. Click
Port Forwarding
from any
Firewall screen to generate the Port Forwarding screen. This screen allows you to
configure the port forwarding settings of the Gateway. If you make changes in this
screen, click
Apply
at the bottom of the screen to save them.
To set up port forwarding:
1.
Select the LAN device from the Select LAN Device drop-down menu.
2.
Enter the LAN IP address in the LAN IP Address text box.
3.
Enter the external start port number in the External (WAN) Start Port text
box.
4.
Enter the external end port number in the External (WAN) End Port text
box.
5.
Enter the internal starting port number in the Internal (LAN) Start Port text
box.
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Chapter 4
Firewall
6.
Select a protocol from the Protocol drop-down list box
7.
Enter the LAN IP address in the LAN IP Address text box.
8.
If applicable, enter the remote port and IP information
9.
Click
Apply
to save your changes.
The list of forwarded ports will be displayed in the Applied Port Forwarding Rules
at the bottom of the screen.
Applications
Click
Applications
from any Firewall screen to generate the Applications screen.
This screen is an extension of the port forwarding screen, allowing you to quickly
and easily set up commonly-used applications that require port forwarding
To set up a forwarded application:
1.
Select a networked device by selecting it from Select Device drop-down list, or
enter its IP address in the Enter IP Address text box.
2.
Select the application’s category from the Application Category drop-
down list, or select All to see all the applications provided.
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