D-Link DSL-2740B User Manual page 62

Section 3 – Configurations
ADD INBOUND IP FILTER
Press the Add button to set inbound IP filter Setup setting
Enter the Filter name and at least one of the following criteria:
Protocol, Source/Destination IP Address and Subnet Mask, and
Source/Destination Port.
The source IP/PORT means that the packet is from WAN.
You also can select Always or Never on the Schedule or you can
press the link to launch the Advanced/Schedule settings to configure
a period time which you want.
You also can choose which WAN interface you want to configure the
Inbound IP filter policy.
Press the Add/Apply button to add and apply settings.
Note: This section only applies when the Firewall is enabled.
D-Link DSL-2640B User Manual 62