D-Link DIR-640L User Manual page 73

Section 4 - Advanced
Source: Use the Source drop-down menu to specify the interface that connects to the source addresses of the firewall rule.
Schedule:
Use the drop-down menu to select the time schedule that the IPv6 Firewall Rule will be enabled on. The schedule may be set to
Always, which will allow the particular service to always be enabled. You can create your own times in the Maintenance > Schedules
section.
IP Address Range: Enter the source IP Address range.
Destination: Use the Destination drop-down menu to specify the interface that connects to the destination IP addresses of the firewall rule.
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 first box and enter the last port in the field in the second
box.
New Schedule:
Click this button to create a new schedule.
D-Link DIR-640L User Manual 68