ZyXEL Communications ZyXEL ZyWALL 5 - Manual (Page 356)

ZyWALL 5 User’s Guide
Chapter 22 UPnP 355
22.4 Displaying UPnP Port Mapping
Click UPnP and then Ports to display the screen as shown next. Use this screen to view the
NAT port mapping rules that UPnP creates on the ZyWALL.
Figure 186 UPnP Ports
The following table describes the labels in this screen.
Enable the Universal
Plug and Play
(UPnP) feature
Select this checkbox to activate UPnP. Be aware that anyone could use a
UPnP application to open the web configurator's login screen without
entering the ZyWALL'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 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).
Apply Click Apply to save your changes back to the ZyWALL.
Reset Click Reset to begin configuring this screen afresh.
Table 125 Configuring UPnP
LABEL DESCRIPTION
Table 126 UPnP Ports
LABEL DESCRIPTION
Reserve UPnP
NAT rules in flash
after system
bootup
Select this checkbox 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.
The following read-only table displays information about the UPnP-created NAT mapping rule entries in
the ZyWALL’s NAT routing table.
# This is the index number of the UPnP-created NAT mapping rule entry.