Billion Electric Company 7404V Series User Manual

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      VoIP/(802.11g) ADSL2+ (VPN) Firewall Router 
 
Chapter 4: Configuration   
62
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 filter rules in the Packet Filter must modify 
accordingly to the level of Firewall, which is selected.  See Table1: Predefined Port Filter for more 
detail information.