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disable. Mostly it is for preventing any scan tools from WAN site by hacker.
Packet Filter
This function is only available when the Firewall is enabled and one of these four security levels is
chosen (All blocked, High, Medium and Low). The preset port lter rules in the Packet Filter must
modify accordingly to the level of Firewall, which is selected. See Table1: Predened Port Filter for
more detail information.
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