Port Filter - D-Link DFL-600 Manual

Next, select a period of time for the policy to be active. Always instructs the
router to enforce a policy any time that policy is enabled. One Time
instructs the router to enforce the policy only during the current session −
when the DFL-600 is restarted, a One Time policy will no longer be
enforced. One Week instructs the router to enforce the policy for the period
of time between the Start Time and the End Time, specified using the drop-
down menus. These times and dates are relative System Date Time
displayed in the System Date Time field. The system date and time can be
set in the DFL-600 using the page displayed by clicking on the Time button
on the Home page, as described above.
Incoming Packet Filtering

Port Filter

Once you have specified a schedule for the policy to be enforced, you can
then configure the policy itself. In allows you to configure a policy for
incoming packets (from the WAN side of the router). Out allows you to
configure a policy for outgoing packets (from the LAN side of the router).
Clicking on the In button corresponding to a given policy will open the Port
Filter and Restricted Web Type page, as shown below.