AT&T Inidv2 I3812v Urer Guide

Configuring Firewall
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6.Select the application you want to modify, click Edit; the selected profile page opens.
7.Modify any information, as necessary. 
8.Click Add to List; a message appears informing you of the status and the information appears in the 
Definition List pane. 
Note: You are prompted to enter your password if one is set up. 

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Deleting Profiles
You can delete only the profiles you created. Before deleting a user-defined profile, make sure to remove it 
from the Hosted Applications pane. 
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 hosted applications. 
4.Scroll to the Edit firewall settings for this computer pane. 
Note:...

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5.Click Edit or delete user-defined application; a page similar to the following opens. 
6.Select the application you want to delete, click Delete. 
Allowing all Applications (DMZplus)
DMZplus is a special firewall mode that is used for hosting applications. When in the DMZplus mode, the 
designated computer:
 Appears as if it is directly connected to the Internet.
 Has all unassigned TCP and UDP ports opened and pointed to it.
 Can receive unsolicited network traffic from the...

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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 hosted applications. 
Caution: Use the DMZplus mode with caution! A computer in the DMZplus 
mode is less secure because all available por ts are open and all incoming 
Internet traffic is directed to this computer.  

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4.Select the computer that you want to allow all applications. 
5.Select the Allow all applications (DMZplus mode) button. 
6.Click Save. 
7.Confirm that the computer you selected in Step 1 is configured for DHCP. If it is not, configure it for 
DHCP. 
8.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. 
Stopping DMZplus
1.Open a Web browser and enter...

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4.Select the computer that you want to stop the DMZplus mode. 
5.Select the Maximum protection button from the Edit firewall settings for this computer pane. 
6.Click Save.
7.Access the computer that you selected in Step 1. 
8.Restar t the computer.
Customizing Firewall Configuration
The i3812V comes with a set of default firewall settings that you can change to adapt to your environment. 
You can change the timeout sessions and protocol that you want to go through the...

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3.Click Advanced Configuration; the following page opens displaying the default settings. 

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4.Customize your Internet security.
−Stealth Mode: When the Stealth Mode is selected, your computer is “invisible” to port-scanning 
programs. Consequently, no reply is received in response in their quest to gain unauthorized 
access to computers and servers. If your computer is always connected to Internet, it is good 
practice to select the Stealth Mode to prevent potential hacking to your computer. 
−Block Ping: When enabled, Block Ping blocks all ping requests. Ping is a...

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−Invalid Source/Destination IP address. When enabled, the firewall checks and verifies the following 
IP addresses: 
−IP source address (broadcast or multicast) 
−TCP destination IP address (not unicast) 
−If the IP source and destination address are the same 
−Invalid IP source received from private/home network 
−Packet Flood (SYN/UDP/ICMP/Other). When enabled, the firewall checks for SYN, UDP, ICMP, and 
other types of packet floods on the local and Internet-facing interfaces...

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