
Chapter 18 Universal
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 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.
18.2 The UPnP Screen
Use the following screen to configure the UPnP settings on your ZyXEL Device. Click Advanced > UPnP to display the screen shown next.
See Section 18.1 on page 257 for more information.
Figure 152 Advanced > UPnP > General
The following table describes the fields in this screen.
Table 97 Advanced > UPnP > General
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). |
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Allow users to make | Select this check box to allow |
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. |
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