ZyWALL 2 Series User’s Guide

18.1.3 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.

All UPnP-enabled devices may communicate freely with each other without additional configuration. Disable UPnP if this is not your intention.

18.2 UPnP Implementation

The device has UPnP certification from the Universal Plug and Play Forum Creates UPnP™ Implementers Corp. (UIC). This UPnP implementation supports IGD 1.0 (Internet Gateway Device). At the time of writing the UPnP implementation supports Windows Messenger 4.6 and 4.7 while Windows Messenger 5.0 and Xbox are still being tested.

UPnP broadcasts are only allowed on the LAN.

Please see later in this User’s Guide for examples of installing UPnP in Windows XP and Windows Me as well as an example of using UPnP in Windows.

18.3 Configuring UPnP

Click UPnP to display the screen shown next.

18-2

UPnP