4 advanced – ZyXEL Communications NBG4115 User Manual
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Chapter 11 NAT
User’s Guide
131
11.4 Advanced
To change your NBG4115’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 48 Network > NAT > Advanced
LABEL
DESCRIPTION
#
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 NBG4115 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 NBG4115 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.