Chapter 16 Universal Plug-and-Play (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.

16.2 UPnP and ZyXEL

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.

16.3 UPnP Screen

Click the Management > UPnP to display the UPnP screen.

Figure 88 Configuring UPnP

The following table describes the labels in this screen.

Table 66 Configuring UPnP

LABEL

DESCRIPTION

Active the Universal Plug

Select this check box to activate UPnP. Be aware that anyone could

and Play (UPnP) Feature

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

Select this check box to allow UPnP-enabled applications to

configuration changes

automatically configure the ZyXEL Device so that they can

through UPnP

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

Select this check box to allow traffic from UPnP-enabled applications to

Firewall

bypass the firewall.

 

Clear this check box to have the firewall block all UPnP application

 

packets (for example, MSN packets).

 

 

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ZyXEL NBG-334SH User’s Guide