PC Concepts ADSL2+ User Manual

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Black List Status: If you want the device to maintain and use a black list, click Enable. Click 
Disable if you do not want to maintain a list. Black List Period(min): Specifies the number of 
minutes that a computer's IP address will remain on the black list (i.e., all traffic originating 
from that computer will be blocked from passing through any interface on the ADSL/Ethernet 
router). 
Attack Protection: Click the Enable radio button to use the built-in firewall protections that 
prevent the following common types of attacks: 
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IP Spoofing: Sending packets over the WAN interface using an internal LAN IP 
address as the source address. 
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Tear Drop: Sending packets that contain overlapping fragments 
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Smurf and Fraggle: Sending packets that use the WAN or LAN IP broadcast address 
as the source address.