Buffalo WBMR-HP-GN User Manual page 24

Port Forwarding allows you to route external (Internet) calls for services such
as a web server (port 80), FTP server (Port 21), or other applications, through
your Router to your internal network. Since your internal computers are pro-
tected by a firewall, machines from the Internet cannot get to them because
they cannot be 'seen' . If you need to configure the port forwarding function
for a specific application, you will need to contact the application vendor
to find out which port settings you need. You can manually input this port
information into the Router.
DMZ
If you have a client PC that cannot run an Internet application properly from
behind the firewall, you can open the client up to unrestricted two-way Inter-
net access. This may be necessary if the NAT feature is causing problems with
an application such as a game or video conferencing application. Use this
feature on a temporary basis as a DMZ host is highly exposed to the dangers
of the Internet
To put a computer in the DMZ, enter its LAN IP address and click "Apply" for
the change to take effect.
UPnP
Setting up the internet gateway function of UPnP: On a PC which supports
UPnP (Windows XP, etc.), the AirStation is automatically recognized on the
LAN as an internet gateway. Also, if a network application which supports
UPnP is used, it can acquire the Internet port status of the AirStation and
the Internet IP address obtained from your ISP, and perform port translation
automatically.
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