User’s Guide 169
CHAPTER 18

UPnP

18.1 Overview

This chapter introduces the UPnP feature in the Web Configurator.
Universal Plug and Play (UPnP) is a distributed, open networking standard that
uses TCP/IP for simple peer-to-peer network connectivity between devices. A
UPnP device can dynamically join a network, obtain an IP address, convey its
capabilities and learn about other devices on the network. In turn, a device can
leave a network smoothly and automatically when it is no longer in use.
18.1.1 What You Can Do in this Chapter
Use the UPnP screen (Section 18.2 on page 170) to enable UPnP on the
NBG4115.
18.1.2 What You Need to Know
The following terms and concepts may help as you read through this chapter.
How do I know if I'm using UPnP?
UPnP hardware is identified as an icon in the Network Connections folder
(Windows X P). Each UP nP compati ble device installed on your net work will a ppear
as a separate icon. Selecting the icon of a UPnP device will allow you to access the
information and properties of that device.
NAT Traversal
UPnP NAT traversal automates the process of allowing an application to operate
through NAT. UPnP network devices can automatically co nfigure network
addressing, announce their presence in the network to other UPnP devices and
enable exchange of simple product and service descriptions. NAT traversal allows
the following:
Dynamic port mapping