User's Guide

3e-531AP Wireless Access Point

Chapter 4: Gateway Con guration

29000125-001 C

Demilitarized Zone (DMZ)

The

Demilitarized Zone (DMZ) host allows one computer on the

Private Network to be totally exposed to the wired net work or Internet

for un re strict ed two-way communication. This con  g u ra tion is typ i cal ly

used when a computer is operating a proprietary client software or 2-way

com mu ni ca tion such as

video-tele con fer enc ing, where multiple TCP port

as sign ments are required for com mu ni ca tion. To assign a PC the DMZ

host status,  ll in the Private IP address which is identi ed as the ex posed

host and click the

Apply

button. However, any Internet user who knows

the WAN IP address of the gateway can connect to the DMZ host since

the  rewall feature is disabled for this device, causing a potential security

risk to data residing on that host.

Again, it is recommended that IP addresses of DMZ host computers

on the Private Network be manually (statically) assigned to coincide with

a static DMZ host mapping to that speci c IP address. DMZ hosts should

not rely on the dynamic IP assignment of DHCP server function which

could create incorrectly mapped IP address assignments to non-DMZ

hosts.