ZyXEL Communications NBG-417N manual UPnP Screen, 162

Chapter 18 Universal Plug-and-Play (UPnP)

•Dynamic port mapping

•Learning public IP addresses

•Assigning lease times to mappings

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 NBG-417N 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.

18.4 UPnP Screen

Use this screen to enable UPnP. Click the Management > UPnP to open the following screen.

Figure 87 Management > UPnP > General

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NBG-417N User’s Guide