VoIP/ 802.11g ADSL2+ Firewall Router
Chapter 4: Configuration
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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 predefined port filter rules in the Packet Filter
must modify accordingly to the level of Firewall, which is selected. See
Table1: Predefined Port
Filter
for more detailed information.