ZyXEL Communications 2 Plus manual 538

Chapter 36 Network Address Translation (NAT)

"Only one LAN computer can use a trigger port (range) at a time.

Enter 3 in menu 15 to display Menu 15.3 - Trigger Port Setup and configure trigger port rules for the WAN port.

Figure 364 Menu 15.3.1: Trigger Port Setup

		Menu 15.3	- Trigger		Port Setup
Rule	Name	Start	Incoming			Trigger
			Port	End Port		Start Port End Port

--------------------------------------------------------------

1.	Real Audio	6970	7170	7070	7070
2.		0	0	0	0
3.		0	0	0	0
4.		0	0	0	0
5.		0	0	0	0
6.		0	0	0	0
7.		0	0	0	0
8.		0	0	0	0
9.		0	0	0	0
10.		0	0	0	0
11.		0	0	0	0
12.		0	0	0	0
		Press ENTER to Confirm or ESC to Cancel:
HTTP:80 FTP:21		Telnet:23 SMTP:25	POP3:110	PPTP:1723

The following table describes the fields in this menu.

Table 201 Menu 15.3: Trigger Port Setup

FIELD	DESCRIPTION
Rule	This is the rule index number.
Name	Enter a unique name for identification purposes. You may enter up to 15 characters in
	this field. All characters are permitted - including spaces.
Incoming	Incoming is a port (or a range of ports) that a server on the WAN uses when it sends out
	a particular service. The ZyWALL forwards the traffic with this port (or range of ports) to
	the client computer on the LAN that requested the service.
Start Port	Enter a port number or the starting port number in a range of port numbers.
End Port	Enter a port number or the ending port number in a range of port numbers.
Trigger	The trigger port is a port (or a range of ports) that causes (or triggers) the ZyWALL to
	record the IP address of the LAN computer that sent the traffic to a server on the WAN.
Start Port	Enter a port number or the starting port number in a range of port numbers.
End Port	Enter a port number or the ending port number in a range of port numbers.

Press [ENTER] at the message “Press ENTER to Confirm...” to save your configuration, or press [ESC] at any time to cancel.

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	ZyWALL 2 Plus User’s Guide