Wan Interface - D-Link DRO-210i User Manual

Select Interface → → → → DMZ to configure DMZ Settings as explained below.
To add a DMZ Server in the network, the administrator can
a) Assign Private IP Addresses to the DMZ network. And configure a One-To-One
NAT entry to map a Global IP Address to the Private DMZ Server IP Address.
Refer NAT Configuration
b) Or assign Private IP Addresses to the DMZ network. And configure a Virtual
Server entry to map a Global IP Address/Port to the Private DMZ Server IP
Address/Port. Refer
c) Or assign Global IP Address to the DMZ network. And add a NAT Exception (i.e
disable NAT) between WAN and DMZ.
Note:
To make the private DMZ Server accessible from the internet, use One-To-One
NAT only when multiple services are hosted by a single DMZ Server. When only one
service is provided by the DMZ Server, it is preferable to use Virtual Server feature.
This would enable you to save the number of Global IP Addresses required to expose
your DMZ services.

2.4 WAN Interface

This Interface is used for WAN Connectivity through an ISP. Typically ISPs support 3
modes of WAN Connectivity – Static, Dynamic and PPPoE. The WAN Interface
configurations for these modes are explained in the following sections. These
configurations are explained for WAN1 interface, and the same explanation holds good
for WAN2 also.
Maximum Transmission Unit:
MTU (or Maximum Transmission Unit) is the largest sized packet that can be transmitted
through the internet. A higher MTU brings higher bandwidth efficiency. However large
packets can block up a slow interface for some time, increasing the lag on other packets.
Packets with sizes greater than the MTU will be fragmented by the router.
Caution: Follow the ISP's advice on whether to change the default MTU value and
what to change it to.
for more details.
Virtual Server Configuration for more details.