ZyXEL NBG-417N Manuale Utente

 Chapter 11 Network Address Translation (NAT)

NBG-417N User’s Guide

To change your NBG-417N’s trigger port settings, click Network > NAT > 
Advanced. The screen appears as shown.

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

Figure 69   Network > NAT > Advanced 

The following table describes the labels in this screen.

Table 45   Network > NAT > Advanced

#

This is the rule index number (read-only).

Name

Type a unique name (up to 15 characters) for identification purposes. 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 NBG-417N forwards the 
traffic with this port (or range of ports) to the client computer on the 
LAN that requested the service. 

Start Port

Type a port number or the starting port number in a range of port 
numbers.

End Port

Type 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 NBG-417N to record the IP address of the LAN computer that sent 
the traffic to a server on the WAN.

Start Port

Type a port number or the starting port number in a range of port 
numbers.

End Port

Type a port number or the ending port number in a range of port 
numbers.