ZyXEL Communications P-870HW-I User Manual

P-870HW-I1 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.

Use this screen to set up UPnP on your ZyXEL Device. To open this screen, click 
Management > UPnP > General.

Figure 124   Management > UPnP

The following table describes the fields in this screen.

Table 103   Configuring UPnP

Enable the Universal Plug 

and Play (UPnP) Feature 

Select this 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 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.