SMC Networks SMC7004VBR V.2 - Manual (Page 44)

Navigating the Web-based Administration
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The section also has a [Server Configuration] section that
automatically opens the port options checked in the [Virtual
Server] section. Simply enter in the IP address of your server,
such as a web server, and then click on the port option
[HTTP Port 80] so users can access your server from
the WAN connection (Internet).
UPnP
The Barricade™ supports UPnP (Universal Plug and Play),
a networking architecture that provides compatibility amongst
networking equipment. This feature allows an UPnP based
operating system, like Windows XP to automatically
communicate with the Barricade™ and open the required
services when needed.