ZyXEL NBG-460N User Guide - Page 240
UPnP Screen
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Chapter 19 Universal Plug-and-Play (UPnP) • 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. 19.3.2 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-460N 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. 19.4 UPnP Screen Use this screen to enable UPnP. Click the Management > UPnP to open the following screen. Figure 145 Management > UPnP > General 240 NBG-460N User's Guide