ZyXEL P-334W User Guide - Page 169

Part4.pdf, Universal Plug and Play Overview, How Do I Know If I'm Using UPnP?, NAT Traversal, UPnP

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Prestige 334W User's Guide Chapter 12 UPnP This chapter introduces the Universal Plug and Play feature. 12.1 Universal Plug and Play 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. 12.1.1 How Do I Know If I'm Using UPnP? 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. 12.1.2 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 Windows Messenger is an example of an application that supports NAT traversal and UPnP. See the SUA/NAT chapter for further information about NAT. UPnP 12-1

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Prestige 334W User’s Guide
UPnP
12-1
Chapter 12
UPnP
This chapter introduces the Universal Plug and Play feature.
12.1
Universal Plug and Play 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.
12.1.1 How Do I Know If I'm Using UPnP?
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.
12.1.2 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:
¾
Dynamic port mapping
¾
Learning public IP addresses
¾
Assigning lease times to mappings
Windows Messenger is an example of an application that supports NAT traversal and UPnP.
See the
SUA/NAT
chapter for further information about NAT.