P-660HW-T v2 User’s Guide
208 Chapter 16 Universal Plug-and-Play (UPnP)
16.1.3 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 only on the LAN.
All UPnP-enabled devices may communicate freely with each other without additional
configuration. Disable UPnP if this is not your intention.
You must have IIS (Internet Information Services) enabled on the Windows web server for
UPnP to work.
16.2 UPnP and ZyXEL
ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum UPnPâ„¢
Implementers Corp. (UIC). ZyXEL's UPnP implementation supports IGD 1.0 (Internet
Gateway Device).
See the following sections for examples of installing and using UPnP.
16.2.1 Configuring UPnP
Click Advanced > UPnP to display the screen shown next.
See Section 16.1 on page 207 for more information.
Figure 116 Configuring UPnP
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