ZyXEL Communications max318m2w User Manual page 90

Chapter 7 Network Settings
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.
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 received UPnP certification from the official UPnP Forum (http://
www.upnp.org). ZyXEL's UPnP implementation supports IGD 1.0 (Internet
Gateway Device).
The WiMAX Device only sends UPnP multicasts to the LAN.
Content Filter
Internet content filtering allows you to create and enforce Internet access policies
tailored to their needs. Content filtering is the ability to block certain specific URL
keywords.
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MAX318M2W User's Guide