Billion Electric Company BiGuard 2 - Manual (Page 90)

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Rule: Enable or disable this entry.
Action When Matched: Select to Drop or Forward the packet specified in this filter
entry.
MAC Address: The MAC Address you would like to apply.
Candidates: You can also select the Candidates which are referred from the ARP
table for automatic input.
4.4.4.4 Block WAN Request
Blocking WAN requests is one way to prevent DDoS attacks by preventing ping
requests from the Internet. Use this menu to enable or disable function.