ZyXEL Communications P-870HW-51a v2 User Manual

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Chapter 14 Universal Plug-and-Play (UPnP)
P-870HW-51a v2 User’s Guide
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Windows Messenger is an example of an application that supports NAT traversal 
and UPnP. 
See the NAT chapter for more information on NAT.
Cautions with UPnP
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 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. 
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.
14.3  The UPnP Screen
Click Advanced > UPnP to display the screen shown next.
See 
 for more information. 
Figure 73   Advanced > UPnP