ZyXEL Communications ZyXEL ZyWALL P1, User Manual

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ZyWALL P1 User’s Guide
Chapter 14 UPnP 217
14.4 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 111 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).
Apply Click Apply to save your changes back to the ZyWALL.
Reset Click Reset to begin configuring this screen afresh.
Table 78 Configuring UPnP
LABEL DESCRIPTION
Table 79 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.
WAN Interface in
Use
This field displays through which WAN port 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.