Working with IP Filters and Filter Sets
Enter new name for the filter set, for example Filter Set 1.
To save the filter set, click the Submit button. The saved filter set is empty (contains no filters), but you can return to it later to add filters (see “Adding filters to a filter set”).
☛NOTE:
As you begin to build a filter set, and as you add filters, after your first entry,
the Alert icon 
will appear in the upper right corner of the web page. It will remain until all of your changes are entered and validated. You need not imme- diately restart the Gateway until your filter set is complete. See “Associating a Filter Set with an Interface” on page 171.
Adding filters to a filter set
There are two kinds of filters you can add to a filter set: input and output. Input filters check packets received from the Internet, destined for your network. Output filters check packets transmitted from your network to the Internet.
