ZyXEL 2WG Guida Utente

 Chapter 24 UPnP Screens

ZyWALL 2WG User’s Guide

Click ADVANCED > UPnP > Ports to display the UPnP Ports screen. Use this screen to 
view the NAT port mapping rules that UPnP creates on the ZyWALL. 

Figure 292   ADVANCED > UPnP > Ports

The following table describes the labels in this screen.  

Allow users to make 

configuration 

changes through 

UPnP

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

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

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).

Outgoing WAN 

Interface

Select through which WAN port you want to send out traffic from UPnP-

enabled applications. If the WAN port you select loses its connection, the 

ZyWALL attempts to use the other WAN port. If the other WAN port also 

does not work, the ZyWALL drops outgoing packets from UPnP-enabled 

applications.

Apply

Click Apply to save your changes back to the ZyWALL.

Reset

Click Reset to begin configuring this screen afresh.

Table 148   ADVANCED > UPnP

Table 149   ADVANCED > UPnP > Ports

Reserve UPnP 

NAT rules in flash 

after system 

bootup

Select this check box to have the ZyWALL retain UPnP created NAT rules even 

after restarting. If you use UPnP and you set a port on your computer to be fixed 

for a specific service (for example FTP for file transfers), this option allows the 

ZyWALL to keep a record when your computer uses UPnP to create a NAT 

forwarding rule for that service. 

WAN Interface in 

Use

This field displays through which WAN interface the ZyWALL is currently sending 

out traffic from UPnP-enabled applications. This field displays None when UPnP is 

disabled or neither of the WAN ports has a connection.

The following read-only table displays information about the UPnP-created NAT mapping rule entries in 

the ZyWALL’s NAT routing table.