Chapter 8 Network Address Translation (NAT)
P-870H/HW Series User’s Guide
127
The following table describes the labels in this screen.
Table 40
NAT > Port Triggering > Add
LABEL
DESCRIPTION
Active
Clear the check box to disable the rule. Select the check box to enable it.
Service
Name
Enter a name to identify this rule. This field is read-only if you click the Edit
icon in the Trigger Port screen.
WAN
Interface
Select a WAN interface for which you want to configure port triggering rules.
Trigger
Start Port
The trigger port is a port (or a range of ports) that causes (or triggers) the
ZyXEL Device to record the IP address of the LAN computer that sent the
traffic to a server on the WAN.
Type a port number or the starting port number in a range of port numbers.
Trigger End
Port
Type a port number or the ending port number in a range of port numbers.
Trigger
Protocol
Select the IP protocol from TCP, UDP, or TCP/UDP.
Open Start
Port
The open port is a port (or a range of ports) that a server on the WAN uses
when it sends out a particular service. The ZyXEL Device forwards the traffic
with this port (or range of ports) to the client computer on the LAN that
requested the service.
Type a port number or the starting port number in a range of port numbers.
Open End
Port
Type a port number or the ending port number in a range of port numbers.
Open
Protocol
Select the IP protocol from TCP, UDP, or TCP/UDP.
Back
Click Back to return to the previous screen.
Apply
Click Apply to save your changes to the ZyXEL Device.
Cancel
Click Cancel to begin configuring this screen afresh.
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