Chapter 8 Network Address Translation (NAT)
P-870HN-5xb User’s Guide
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Click NAT > Trigger Port to open the following screen. Use this screen to view
and configure your Device’s trigger port settings.
Figure 74 Trigger Port
The following table describes the labels in this screen.
Table 42 NAT Trigger Port
LABEL DESCRIPTION
Service Name Select a pre-defined service from the drop-down list box. The pre-
defined service port number(s) and protocol will display in the Trigger
port, Open port and Protocol fields.
Otherwise, select User Define to open the Rule Setup screen where
you can manually enter the port number(s) and select the IP protocol.
WAN Interface Select the WAN interface through which the service is forwarded.
Trigger Port The trigger port is a port (or a range of ports) that causes (or triggers)
the Device to record the IP address of the LAN computer that sent the
traffic to a server on the WAN.
Start This is the first port number that identifies a service.
End This is the last port number that identifies a service.
Protocol This is the IP protocol.
Open Port The open port is a port (or a range of ports) that a server on the WAN
uses when it sends out a particular service. The Device forwards the
traffic with this port (or range of ports) to the client computer on the
LAN that requested the service.
Start This is the first port number that identifies a service.
End This is the last port number that identifies a service.
Protocol This is the IP protocol.
Add Click this button to add a rule to the table below.
No. This is the rule index number (read-only).
Active This field indicates whether the rule is active or not.
Clear the check box to disable the rule. Select the check box to enable it.
Server Name This field displays the name of the service used by the packets for this
virtual server.
WAN Interface This field displays the WAN interface through which the service is
forwarded.
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