ZyXEL 793H Guía Del Usuario

Chapter 16 Universal Plug-and-Play (UPnP)

P-793H 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 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 in the ZyXEL Device. Click Advanced > UPnP to display the 
screen shown next.
See 

 for more information. 

Figure 108   UPnP > General

The following table describes the fields in this screen.

Table 80   UPnP > General

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. 

Allow UPnP to pass through 

Firewall

Select this to allow UPnP-enabled applications to automatically pass 

through the ZyXEL Device’s firewall. This is less secure, but you do not 

have to configure firewall rules for these applications.