22

Universal Plug-and-Play (UPnP)

22.1 Overview

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.

22.1.1 What You Can Do in this Chapter

The UPnP screen lets you enable UPnP on the P-2812HNU-51c (Section 22.3 on page 340).

22.2 What You Need to Know

Identifying UPnP Devices

UPnP hardware is identified as an icon in the Network Connections folder (Windows XP). Each UPnP compatible device installed on your network will appear 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 configure 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

•Learning public IP addresses

•Assigning lease times to mappings

 

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P-2812HNU-51c User’s Guide