Dmz Ip Address - D-Link DSL-504 User Manual

DSL-504 ADSL Router User's Guide
If your network uses web servers, FTP servers or other proxies used for data
requests from outside the private network, you can use NAT in conjunction with
Port Redirection to allow appropriate use of your servers by outside users. See
the section on Port Redirection for more information.
For the purposes of network administration, NAT is almost indispensable. Hosts
and servers on the internal network can be moved easily. Using NAT together
with DHCP can greatly reduce the workload of a network manager while
allowing tremendous flexibility.
NAT Configuration Window
The NAT function is enabled by default on the Router. If you want to disable
NAT, open the NAT Configuration window, select disabled in the NAT Function
pull-down menu. Click the OK button to implement your choice. There are
security risks associated with disabling NAT, so it is important that you have
other network protection mechanisms in place before you do this.

DMZ IP Address

NAT may conflict with certain interactive applications such as video conferencing
or playing Internet video games. For these applications a NAT bypass can be set
up using a DMZ IP address. The DMZ IP address is a "visible" address and does
not benefit from the full protection of the NAT function. Therefore it is advisable
that other security precautions be enabled to protect the other computers and
devices on the LAN. It may be wise to use isolate the device with the DMZ IP
address from the rest of the LAN.
For example, if you want to use video conferencing and still use NAT, you can use
the DMZ IP address function. In this case, you must have a PC or server through
which video conferencing will take place. The IP address of this PC or server will
then be the DMZ IP address. You can designate the server's IP address as the
DMZ by typing in the IP address in the DMZ IP Address space provided and
clicking the OK button.
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