ZyXEL Communications P-660HW-DX User Manual

Chapter 16 Universal Plug-and-Play (UPnP)

P-660HW-Dx User’s Guide

When a UPnP device joins a network, it announces its presence with a multicast message. For 
security reasons, the ZyXEL Device allows multicast messages only on the LAN.
All UPnP-enabled devices may communicate freely with each other without additional 
configuration. Disable UPnP if this is not your intention. 
You must have IIS (Internet Information Services) enabled on the Windows web server for 
UPnP to work.

ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum UPnP™ 
Implementers Corp. (UIC). ZyXEL's UPnP implementation supports IGD 1.0 (Internet 
Gateway Device). 
See the following sections for examples of installing and using UPnP.

Click Advanced > UPnP to display the screen shown next.
See 

 for more information. 

Figure 119   Configuring UPnP

The following table describes the fields in this screen.

Table 89   Configuring UPnP

Active the Universal Plug 

and Play (UPnP) Feature 

Select this check box 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.