Enable Packet Filter: Enable or disable “packet filter” function
Policy: The filter rule’s policy, you can choose the following options
Discard the Following--Discard packets conform to the following rules, Accept all
other packets (“black list”)
Only Accept the Following-- Accept only the data packets conform to the
following rules, discard all other packets (“white list”)
Direction
Input: packet from WAN to LAN
output: packet from LAN to WAN
Interface : specify if this rule applies to the main WAN, backup WAN or both
Protocol : packet Protocol type
Source Ports : packet's source port
Destination Ports : packet's destination port
Source IP: packet's source IP address