ZyXEL Communications NBG6503 Manuel D’Utilisation

Chapter 21 Universal Plug-and-Play (UPnP)

NBG6503 User’s Guide

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 Router 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. 

Use this screen to enable UPnP on your Router.

Click Management > UPnP to display the screen shown next. 

Figure 101   Management > UPnP

The following table describes the fields in this screen.

The sections show examples of using UPnP.  

This section shows you how to use the UPnP feature in Windows XP. You must already have UPnP 
installed in Windows XP and UPnP activated on the Router.

Table 64   Management > UPnP

Enable 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 Router's IP address 
(although you must still enter the password to access the web configurator).

Apply

Click Apply to save the setting to the Router.

Reset

Click Reset to return to the previously saved settings.