Billion Electric Company 400G - Manual (Page 51)

Billion 400G Router
Chapter 4: Configuration
48
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 be modified according to the
level of Firewall, which is selected. See Table1: Predefined Port Filter for more detailed information.