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Settings – Access Filter
Access Group
This allows you have different access rights for different Groups of PCs.
• If you want the same restrictions to apply to everyone, select Default
for the Group. In this case, there is no need to enter any Hosts on
the Host IP screen.
• If you wish to apply different restrictions to different Groups, select
the desired Group. The screen will update data for the selected
Group.
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 known services by using the checkboxes, or you may
define your own filters.
ICMP Filters
If you enable ICMP Filter that means it will block ICMP request packet
types specified by users from local host to remote side.
User-Defined Filter
This section is optional. It allows you to define your own filters as
required. For each filter, the following information is required:
• Filter Name – Enter a name for this filter.
• Protocol Type – Select a protocol type you wish to block.
• Port No. Range – Enter the range of port numbers used that you
wish to block. If only a single port is required, enter it in both fields.
User-Defined Filter List
This List shows the details of all User-Defined Filter configurations which
are currently defined. You can modify its configuration data by clicking
on a selected row.