Filter Setting Select the desired option for this Group:
• No filtering – Nothing is blocked, Internet access is not restricted.
• Block All Access – Everything is blocked, Internet access is not
available.
• Block selected items – Items selected on this screen are blocked.
You can block well known services by using the checkboxes, or
define your own filters.
Block Well-known
ports Select the services you wish to block. The current group will not be able
to use any services which are checked.
ICMP Filters A set of filters that prevents certain types of packets from going out on
the WAN interface.
User-defined Ports to
Block This section is optional. It allows you to define your own filters if
required. For each filter, the following information is required.
• Name – Enter a meaningful name for this filter.
• TPC/UDP Packets – Select either TCP or UDP, depending on
which protocol is used by the service you wish to block.
• Port No. Range – Enter the range of port numbers used by the
service you wish to block. If only a single port is required, enter it in
both fields.
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