Chapter 16 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
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). |
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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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Allow UPnP to pass through | Select this check box to allow traffic from |
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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