Netopia 2200 - Manual (Page 76)

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Configure Specific Pinholes. Planning for Your Pinholes. Determine if any
of the ser vice applications that you want to provide on your LAN stations use TCP or UDP
protocols. If an application does, then you must configure a pinhole to implement por t for-
warding. This is accessed from the
Advanced -> Pinholes page.
Example: A LAN Requiring Three Pinholes . The procedure on the following
pages describes how you set up your NAT-enabled Netopia Gateway to suppor t three sepa-
rate applications. This requires passing three kinds of specific IP traffic through to your
LAN.
Application 1: You have a Web server located on your LAN behind your Netopia Gateway
and would like users on the Internet to have access to it. With NAT “On”, the only externally
visible IP address on your network is the Gateway’s WAN IP (supplied by your Ser vice Pro-
vider). All traffic intended for that LAN Web ser ver must be directed to that IP address.
Application 2: You want one of your LAN stations to act as the “central repository” for all
email for all of the LAN users.
Application 3: One of your LAN stations is specially configured for game applications. You
want this specific LAN station to be dedicated to games.
A sample table to plan the desired pinholes is:
For this example, Internet protocols TCP and UDP must be passed through the NAT security
feature and the Gateway’s embedded Web (HTTP) por t must be re-assigned by configuring
new settings on the Internal Ser vers page.
WAN Traffic Type Protocol Pinhole Name
LAN Internal IP
Address
Web TCP my-webser ver 192.168.1.1
Email TCP my-mailser ver 192.168.1.2
Games UDP my-games 192.168.1.3