ZyXEL Communications P-2812HNU-51c 191

Chapter 8 Network Address Translation (NAT)

The following table describes the labels in this screen.

Table 53 NAT > Port Triggering > Add

LABEL	DESCRIPTION
Active	Clear the check box to disable the rule. Select the check box to enable it.
	This field is not editable if you are configuring a User Define rule.

Service	Enter a name to identify this rule. This field is read-only if you click the Edit
Name	icon in the Trigger Port screen.

WAN	Select a WAN interface for which you want to configure port triggering rules.
Interface

Trigger	The trigger port is a port (or a range of ports) that causes (or triggers) the
Start Port	P-2812HNU-51c 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	Type a port number or the ending port number in a range of port numbers.
Port

Trigger	Select the transport layer protocol from TCP, UDP, or TCP/UDP.
Protocol

Open Start	The open port is a port (or a range of ports) that a server on the WAN uses
Port	when it sends out a particular service. The P-2812HNU-51c 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	Type a port number or the ending port number in a range of port numbers.
Port

Open	Select the transport layer protocol from TCP, UDP, or TCP/UDP.
Protocol

Back	Click Back to return to the previous screen.

Apply	Click Apply to save your changes to the P-2812HNU-51c.

Cancel	Click Cancel to begin configuring this screen afresh.