D-Link DVG-N5402G/ACF User Manual page 125

DVG-N5402G/ACF Wireless AC1200 Dual Band Gigabit Router
with Fiber WAN Port, 3G/LTE Support, 2 FXS Ports, 1 PSTN
(lifeline) Port, and USB Port
User Manual
Parameter
NAT
Firewall
Ping
When all needed settings are configured, click the Apply button.
Select the checkbox if you want one WAN IP address to be used for
all computers of your LAN.
Select the checkbox to enable protection against ARP and DDoS
attacks.
Select the checkbox to allow the router to answer ping requests from
the external network through this connection. For security reasons,
it is recommended not to select this checkbox.
Page 125 of 259
Configuring via Web-based Interface
Description