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Page 46 / 132 Scroll up to view Page 41 - 45
Firewall Tab
41
•
In the Applications panel, click the
Edit or delete user-defined application
link. The Select a Hosted
Application page opens.
Figure 19. Select a Hosted Application Page
1.
In the User-Defined Application Profiles panel, highlight the application you wish to edit or delete.
f.
To edit the application profile, click
EDIT
. The Edit Application screen appears. Make the necessary
changes to the application profile and click
DONE
.
g.
To delete the application profile, click
DELETE
.
Allowing all Applications (DMZplus)
DMZplus is a special firewall mode that is used for hosting applications if you cannot get an application to
work properly using the “Allow individual application(s)” option. When in DMZplus mode, the designated
computer:
•
Shares your gateway’s IP address (Router Address).
•
Appears as if it is directly connected to the Internet.
•
Has all of the unassigned TCP and UDP ports opened and pointed to it.
•
Can receive unsolicited network traffic from the Internet.
Although the computer in DMZplus mode appears to Internet users as though it is directly connected to the
Internet, it is still protected by your system firewall. All traffic is inspected by the firewall’s Stateful Packet
Inspection engine and all known hacker attacks continue to be blocked.
Because all filtered traffic is forwarded to the designated computer, you should use DMZplus mode with
caution. A computer in DMZplus mode is less secure because all available ports are open and all incoming
Internet traffic is directed to this computer.
Page 47 / 132
Firewall Tab
42
To configure DMZplus:
•
Open a Web browser and access the 2Wire gateway user interface by entering
•
Click the
Firewall
tab.
•
Click the Firewall Settings
link under the tab to open the Edit Firewall Settings page.
Figure 20. Edit Firewall Settings Page
1.
From the
Select a computer
pull-down menu, select the computer to which you would like to have all data
sent.
2.
Click
Allow all applications (DMZplus mode)
.
3.
Click
DONE
.
Note:
DMZplus can only be configured for one computer on your home network at a time.
Page 48 / 132
Firewall Tab
43
4.
Access the computer that you selected in step 1.
5.
Confirm that the computer is configured for DHCP
. If it is not, configure it for DHCP
.
6.
Restart the computer. When the computer restarts, it receives a special IP address from the system
and all unassigned TCP and UDP ports are forwarded to it.
To stop DMZplus:
1.
From the
Select a computer
pull-down menu, select the computer for which you would like to disable
DMZplus.
2.
In the Edit firewall settings for this computer pane, click
Maximum protection
.
3.
Click
DONE
.
4.
Access the computer that you selected in step 1. If the computer will continue to automatically obtain
an IP address, proceed to step 5. If the computer will have a static IP address, configure it with a valid
static IP address.
5.
Restart the computer.
Viewing the Firewall Log
The 2Wire gateway keeps a log of all firewall-related events that occur. Each log entry contains the date and
time the event occurred, the severity level of the event, and details about the event.
To view the log:
•
Open a Web browser and access the 2Wire gateway user interface by entering
•
Click the
Firewall
tab.
Page 49 / 132
Firewall Tab
44
•
Click the Firewall Log
link under the tab to open the View Firewall Log page.
Figure 21. View Firewall Log Page
The following table provides additional information about the log entries.
Click
CLEAR LOG
to clear the log.
Severity
•
Info. Informational only—the event does not imply a
threat to network security.
•
Low. Occurs when the firewall detects a low-level threat
to the network, such as an invalid IP header or invalid
packet length.
•
Medium. Occurs when a medium-level threat is detected,
such as an invalid IP fragment offset.
•
High. Occurs when an attack is launched against the
network (for example, a SYN Flood).
Details
Includes the following information:
•
The IP address from which the packet originated.
•
The destination IP address of the packet.
•
The action that was taken.
Page 50 / 132
Firewall Tab
45
Configuring the Firewall (Advanced)
The Edit Advanced Firewall Settings page allows you to configure advanced features on your firewall.
Figure 22. Edit Advanced Firewall Settings Page
Enabling Advanced Security
Your 2Wire gateway firewall already provides a high level of security. You can configure the firewall to provide
advanced security features, including stealth mode, strict UDP
, or block pings.
Note:
These features should be used only if you are thoroughly familiar with firewalls and
networking.

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