D-Link DIR-815 User Manual page 57

Section 3 - Configuration
Protocol: Select the protocol of the firewall port (All, TCP, UDP, or ICMP).
Port Range: Enter the first port of the range that will be used for the firewall rule in the top port range field and enter the last port in the field
underneath.
Select Schedule:
Use the drop-down menu to schedule the time that the Firewall rule will be enabled. The schedule may be set to Always, which will
allow the particular service to always be enabled. Click the New Schedule button to create your own times in the Tools > Schedules
section.
When you have finished configuring the firewall rules, click the Save Settings button at the top or bottom of the window to
save any changes made.
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