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Adding Extra Security with 
Advanced Firewall Filtering 
Do I need extra security? 
Setting up advanced firewall security provides an additional layer of 
security. For example, if you create a DMZ interface for gaming 
using the Virtual Server/DMZ page, you can enable the firewall 
filtering and add a security policy that blocks IP addresses, ports, 
aliases, and certain protocols from reaching the DMZ machine.  
When you use the Advanced Firewall Filtering feature, you will 
move through multiple screens. Follow the steps below to set up 
this feature. 
1  Open the Advanced Firewall Filter page by clicking 
Advanced Firewall Filter on the Router Setup page. 
 
Important! Do not enable Advanced Firewall Filtering on the 
Advanced Firewall Filter page until you create your security 
policy. Otherwise, if you enable Advanced Firewall Filtering 
before you create your policy, you will block all outgoing and 
incoming traffic. 
 
ADSL X6v User Guide 
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