AT&T Inidv2 I3812v Urer Guide

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Configuring Firewall
The i3812V includes default firewall settings that block unwanted access from the Internet; it is 
recommended that you leave the default settings in place. If necessar y, you can allow Internet traffic or 
users through the firewall to your LAN devices, applications, and ser vers. This section provides instructions 
to: 
 Host an application on your network to allow users access on page 38
 Remove an application on your network to block users access on page 38
 Define an...

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Hosting an Application
To allow access from the Internet to applications running on computers inside your home network, you need 
to open firewall pinholes and associate the intended application(s) with a computer connected with your 
i3812V. If you cannot find a listing for your application, you can define an application with the protocol and 
port information (refer to Defining a New Application Profile on page 41.)
To host an application:
1.Open a Web browser and enter...

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3.Select Applications, Pinholes and DMZ; a page similar to the following opens showing the computers 
that are connected to the i38HG/i3812V and the application list. 

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4.Select the computer that you want to host the application(s). 
5.Select Allow individual application(s). 
6.Filter the application list by selecting the category; your selection is displayed in the Application List 
panel. 
7.Select from the Application List panel the application(s) you want to host. 
8.Click Add; the application(s) you selected appears in the Hosted Applications panel. 
9.Click Save; a message appears informing you the status. 
Removing Hosted...

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3.Select Applications, Pinholes and DMZ; a page opens showing hosted applications. 
4.Select the hosting computer if you do not see the pinhole you want to remove in the list. 
5.Scroll to the Edit firewall settings for this computer pane. 
6.Select the application(s) you want to remove from the Hosted Applications panel, click Remove.
7.Click Save; a message appears informing you the status. The application(s) you selected is removed 
from the Hosted Applications panel and...

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To add a new application profile:
1.Open a Web browser and enter http://gateway.2Wire.net to access the 2Wire i3812V user interface. 
2.Click   on the Home page; the Firewall Status page opens. 
3.Select Applications, Pinholes and DMZ; a page opens showing the computers that are connected to 
your i38HG/i3812V and the application list. 
4.Scroll down and click Add a new user-defined application; the Firewall Application Profile Definition page 
opens. 

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5.Enter the application profile name in the Application Profile Name field. 
6.Create a definition for your application that is to be allowed through the firewall. 
−In the 
Protocol field, select the TCP or UDP radio button. If the application you are adding requires 
both, you need to create a separate definition for each.
−In the 
Por t (or Range) field, enter the por t or por t range the application uses. For example, some 
applications requires only one por t to be opened...

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7.Click Add to List; a message appears informing you of the status and the information appears in the 
Definition List pane. For example,  

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Adding Multiple Definitions to a Profile
Some application requires both TCP and UDP por ts. In this case, you need to define additional ports to an 
existing profile. You can add the definition of the profile only when it has not been added to the hosted 
application list. If the profile is added to the hosted application list and you want to modify it, you need to 
first remove it from the Hosted Applications panel. 
1.Open a Web browser and enter http://gateway.2Wire.net to...

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4.Scroll to the Edit firewall settings for this computer pane. 
5.Click Edit or delete user-defined application; a page similar to the following opens. 
Note: If you have not created any profiles, the link will not appear.
Note: The application you created will not appear here if it has been added 
to the Hosted Applications. Return to the previous page, select the 
application intended for modification, click 
Remove to return the application 
to the available application...