Chapter 22 UPnP

When a UPnP device joins a network, it announces its presence with a multicast message. For security reasons, the ZyWALL 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.

22.1.4 UPnP and ZyXEL

ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum UPnP™ Implementers Corp. (UIC). ZyXEL's UPnP implementation supports IGD 1.0 (Internet Gateway Device).

See the following sections for examples of installing and using UPnP.

22.2 Configuring UPnP

Click ADVANCED > UPnP to display the UPnP screen.

Figure 265 ADVANCED > UPnP

The following table describes the fields in this screen.

Table 128 ADVANCED > UPnP

LABEL

DESCRIPTION

UPnP Setup

 

 

 

Device Name

This identifies the ZyXEL device in UPnP applications.

 

 

Enable the Universal

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

Plug and Play (UPnP)

UPnP application to open the web configurator's login screen without

feature

entering the ZyWALL's IP address (although you must still enter the

 

password to access the web configurator).

 

 

Allow users to make

Select this check box to allow UPnP-enabled applications to automatically

configuration

configure the ZyWALL so that they can communicate through the ZyWALL,

changes through

for example by using NAT traversal, UPnP applications automatically

UPnP

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

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

through Firewall

bypass the firewall.

 

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

 

(for example, MSN packets).

 

 

400

 

ZyWALL 2 Plus User’s Guide