Cautions With Upnp; Upnp Screen - ZyXEL Communications UAG4100 User Manual

20.2.2 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 UAG 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.

20.3 UPnP Screen

Use this screen to enable UPnP and NAT-PMP on your UAG.
Click Configuration > Network > UPnP to display the screen shown next.
Figure 124 Configuration > Network > UPnP
Chapter 20 UPnP
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