Filter Inbound; Incoming Ip Filtering Setup - D-Link DSL-2540B - ADSL2/2+ Modem With EN Router User Manual

Section 7 - Advanced Setup
The following screen will appear when you create
an IP filter. This screen lists the IP filters that were
added from the previous screen. To change your
settings, click on the Add or Remove buttons.

Filter Inbound

Incoming IP Filtering Setup

Incoming IP filter allows specified the WAN traffic
to pass through the firewall. Click the Add button to
add incoming filter settings.
D-Link DSL-540B ADSL+ 4-Port Router User Manual 38