Gateway 2701hgb Manual

Firewall Tab
36
Viewing Your Firewall Summary
The Firewall Summary page provides summar y information and links to the most commonly used security-
related features of your system. 
To access the Firewall Summar y page:
 Open a Web browser and access the gateway user interface by entering
http://gateway.2wire.net.
 Click the 
Firewall tab to open the View Firewall Summary page. 
Figure 15. View Firewall Summar y Page
The Firewall Settings panel displays the Current Settings for your firewall.
Default....

Firewall Tab
37
Click VIEW DETAILS to access the Firewall Details page, which shows a list of all the devices that have 
applications configured in the firewall and the details of these configurations.
Figure 16. View Firewall Details Page
If you have the Firewall Monitor enhanced ser vice, the Firewall Monitor panel shows a brief summar y of the 
number of attacks that were blocked for the current day and week. Click 
VIEW DETAILS to access the Monitor 
the Firewall page.
Hosting an Application
When you...

Firewall Tab
38
 Click the Firewall Settings link under the tab to open the Edit Firewall Settings page.
Figure 17. Edit Firewall Settings Page
1.
From the Select a computer pull-down menu, select the computer that you wish to host the application.
2.Click the Allow individual application(s) radio button.
3.In the Applications panel, select an application.
4.Click the ADD button. The application you selected now appears in the Hosted Applications pane.
5.Click DONE.
To stop hosting an application:
1.In...

Firewall Tab
39
Updating the Application Profile List
If the application you want to host does not appear in the Application Profile list, you may need to update 
the application list. If an update is available, the 
UPDATE APPLICATION LIST button appears above the list of 
application profiles. If the application that you want to host is not included in the updated application list, 
you may need to add your own application profile.
Adding an Application Profile
If you wish to host an application that...

Firewall Tab
40
 In the Applications panel, click the Add a new user-defined application link to open the Edit Application 
page.
Figure 18. Edit Application Page 

Firewall Tab
41
1.In the Application Name field, enter a name for the application profile. You can enter any name you like, 
although it’s recommended that you use the name of the application (for example, Redwing Game 
Ser ver).
2.In the Definition panel, create a definition for your application.
A definition consists of a series of protocol-specific por ts that are to be allowed through the firewall. 
This information should be contained in the documentation provided by the company that produces the...

Firewall Tab
42
 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 necessar y 
changes to the application profile and click 
DONE.
g. To delete the application profile, click 
DELETE....

Firewall Tab
43
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.
To configure DMZplus:
 Open a Web browser and access the 2Wire gateway user interface by entering 
http://gateway.2Wire.net.
 Click the 
Firewall tab.
 Click the Firewall Settings
 link under the tab to open the Edit Firewall Settings...

Firewall Tab
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3.Click DONE.
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.Restar t the computer. When the computer restar ts, it receives a special IP address from the system 
and all unassigned TCP and UDP por ts 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...

Firewall Tab
45
 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...