Chapter 9. Upnp Service Setup; Introduction - Draytek Vigor2100V User Manual

Vigor2100V series
Chapter 9
UPnP Service Setup

9.1 Introduction

The UPnP (Universal Plug and Play) protocol is supported to bring to
network connected devices the ease of installation and configuration
which is already available for directly connected PC peripherals with the
existing Windows 'Plug and Play' system.
For NAT routers, the major feature of UPnP on the router is "NAT
Traversal". This enables applications inside the firewall to automatically
open the ports that they need to pass through a router. It is more
reliable than requiring a router to work out by itself which ports need to be
opened. Further, the user does not have to manually set up port
mappings or a DMZ.
UPnP is available on Windows XP and the router provides the associated
support for MSN Messenger to allow full use of the voice, video and
messaging features.
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