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3 the upnp screen – ZyXEL Communications Prestige P-870HW-51a v2 User Manual

Page 150

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Chapter 14 Universal Plug-and-Play (UPnP)

P-870HW-51a v2 User’s Guide

150

Windows Messenger is an example of an application that supports NAT traversal
and UPnP.

See the NAT chapter for more information on NAT.

Cautions with UPnP

The automated nature of NAT traversal applications in establishing their own
services and opening firewall ports may present network security issues. Network
information and configuration may also be obtained and modified by users in some
network environments.

When a UPnP device joins a network, it announces its presence with a multicast
message. For security reasons, the ZyXEL Device allows multicast messages on
the LAN only.

All UPnP-enabled devices may communicate freely with each other without
additional configuration. Disable UPnP if this is not your intention.

UPnP and ZyXEL

ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum
UPnP™ Implementers Corp. (UIC). ZyXEL's UPnP implementation supports
Internet Gateway Device (IGD) 1.0.

See the following sections for examples of installing and using UPnP.

14.3 The UPnP Screen

Click Advanced > UPnP to display the screen shown next.

See

Section 14.1 on page 149

for more information.

Figure 73 Advanced > UPnP