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2 upnp and zyxel, 3 upnp screen, 2 upnp and zyxel 17.3 upnp screen – ZyXEL Communications NBG-318S User Manual

Page 168: Figure 89 management > upnp > general, Table 68 management > upnp > general

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Chapter 17 Universal Plug-and-Play (UPnP)

NBG-318S User’s Guide

168

When a UPnP device joins a network, it announces its presence with a multicast message. For
security reasons, the NBG-318S 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.

17.2 UPnP and ZyXEL

ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum UPnP™
Implementers Corp. (UIC). ZyXEL's UPnP implementation supports Internet Gateway Device
(IGD) 1.0.
See the following sections for examples of installing and using UPnP.

17.3 UPnP Screen

Click the Management > UPnP to display the UPnP screen.

Figure 89 Management > UPnP > General

The following table describes the labels in this screen.

Table 68 Management > UPnP > General

LABEL

DESCRIPTION

Enable the Universal Plug

and Play (UPnP) Feature

Select this check box to activate UPnP. Be aware that anyone could

use a UPnP application to open the web configurator's login screen

without entering the NBG-318S's IP address (although you must still

enter the password to access the web configurator).

Allow users to make

configuration changes

through UPnP

Select this check box to allow UPnP-enabled applications to

automatically configure the NBG-318S so that they can communicate

through the NBG-318S, for example by using NAT traversal, UPnP

applications automatically reserve a NAT forwarding port in order to

communicate with another UPnP enabled device; this eliminates the

need to manually configure port forwarding for the UPnP enabled

application.

Allow UPnP to pass through

Firewall

Select this check box to allow traffic from UPnP-enabled applications to

bypass the firewall.
Clear this check box to have the firewall block all UPnP application

packets (for example, MSN packets).