D-Link DSL-2750U User Manual page 109

DSL-2750U Wireless ADSL2+ Router with 3G/LTE/Ethernet WAN Support
and USB Port
User Manual
Figure 86. The page for creating a new LTE connection. The Miscellaneous section.
Parameter
NAT
Firewall
Ping
When all needed settings are configured, click the APPLY button.
Miscellaneous
If the switch is moved to the right, the network address translation
function is enabled. Do not disable the function unless your ISP
requires this.
If the switch is moved to the right, protection against external
connections for the LAN devices is enabled (for example, against
attempts to get information about the LAN devices or to hack a
device from the LAN). For security reasons, it is recommended not
to disable this function.
If the switch is moved to the right, the router responds to ping
requests from the external network through this connection. For
security reasons, it is recommended to disable this function.
Page 109 of 210
Configuring via Web-based Interface
Description