ZyXEL Communications 2 manual 151

Chapter 11 Network Address Translation (NAT)

Figure 72 Network Setting > NAT > Port Forwarding: Add/Edit

The following table describes the fields in this screen.

Table 53 Network Setting > NAT > Port Forwarding: Edit

LABEL	DESCRIPTION
Active	Click this check box to enable the rule.
Service Name	Enter a name to identify this port-forwarding rule.
External Start	Enter a port number in this field.
Port	To forward only one port, enter the port number again in the End Port field.
	To forward a series of ports, enter the start port number here and the end port number in
	the End Port field.
External End Port	Enter a port number in this field.
	To forward only one port, enter the port number in the Start Port field above and then
	enter it again in this field.
	To forward a series of ports, enter the last port number in a series that begins with the
	port number in the Start Port field above.
Server IP	Enter the IP address of the server in your local network.
Address
Trigger Protocol	Select the protocol of the service, TCP, UDP or ALL (TCP+UDP).
Open Start Port	Enter the first port number here to which you want the device to translate the incoming
	port. For a range of ports, you only need to enter the first number of the range to which
	you want the incoming ports translated, the device automatically calculates the last port of
	the translated port range.
Open End Port	Enter the last port number here to which you want the device to translate the incoming
	port. For a range of ports, you only need to enter the first number of the range to which
	you want the incoming ports translated, the device automatically calculates the last port of
	the translated port range.
Back	Click this to return to the previous screen without saving.
Apply	Click this to save your changes.
Cancel	Click this to restore your previously saved settings.

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AMG1312-T Series User’s Guide