ZyXEL Communications NBG-419N User Manual page 129

Note: Only one LAN computer can use a trigger port (range) at a time.
Figure 96 Network > NAT > Advanced
The following table describes the labels in this screen.
Table 60 Network > NAT > Advanced
LABEL
#
Name
Incoming
Start Port
End Port
Trigger
Start Port
End Port
Apply
Reset
NBG-419N User's Guide
DESCRIPTION
This is the rule index number (read-only).
Type a unique name (up to 15 characters) for identification purposes. All
characters are permitted - including spaces.
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-419N 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.
Type a port number or the ending port number in a range of port numbers.
The trigger port is a port (or a range of ports) that causes (or triggers) the NBG-
419N 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.
Type a port number or the ending port number in a range of port numbers.
Click Apply to save your changes back to the NBG-419N.
Click Reset to begin configuring this screen afresh.
Chapter 15 Network Address Translation (NAT)
129