ZyXEL Communications NBG-419N User Manual page 148

Chapter 15 Network Address Translation (NAT)
Note: Only one LAN computer can use a trigger port (range) at a time.
Figure 95 Network > NAT > Advanced
The following table describes the labels in this screen.
Table 59 Network > NAT > Advanced
LABEL
#
Name
Incoming
Start Port
End Port
Trigger
Start Port
End Port
Apply
Reset
148
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.
NBG-419N User's Guide