ZyXEL p-334wh Guia Do Utilizador

P-334WH User’s Guide

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Chapter 17 UPnP

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. 

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.

Click the UPnP link under Management to display the UPnP screen.

Figure 94   Configuring UPnP

The following table describes the labels in this screen.

Table 72   Configuring UPnP

Enable the Universal 

Plug and Play (UPnP) 

feature 

Select this checkbox to activate UPnP. Be aware that anyone could use a 

UPnP application to open the web configurator's login screen without entering 

the ZyXEL Device's IP address (although you must still enter the password to 

access the web configurator).

Allow users to make 

configuration 

changes through 

UPnP

Select this check box to allow UPnP-enabled applications to automatically 

configure the ZyXEL Device so that they can communicate through the ZyXEL 

Device, for example by using NAT traversal, UPnP applications automatically 

reserve a NAT forwarding port in order to communicate with another UPnP 

enabled device; this eliminates the need to manually configure port forwarding 

for the UPnP enabled application.