User's Guide

Chapter 9 Network Address Translation (NAT)
LTE Series User’s Guide
113
Figure 85 Port Triggering: Add/Edit
The following table describes the labels in this screen.
9.4 DMZ
Use this screen to specify the IP address of a default server to receive packets from ports not specified in
the Port Triggering screen. The DMZ (DeMilitarized Zone) is a network between the WAN and the LAN
that is accessible to devices on both the WAN and LAN with firewall protection. Devices on the WAN
Table 36 Port Triggering: Add/Edit
LABEL DESCRIPTION
Active Click to enable (blue switch) or disable (gray switch) to activate or deactivate the rule.
Service Name Enter a name to identify this rule using keyboard characters (A-Z, a-z, 1-2 and so on).
WAN Interface Select a WAN interface for which you want to configure port triggering rules.
Trigger Start Port The trigger port is a port (or a range of ports) that causes (or triggers) the Zyxel Device 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.
Trigger End Port Type a port number or the ending port number in a range of port numbers.
Trigger Protocol Select the transport layer protocol from TCP, UDP, or TCP/UDP.
Open Start 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 Zyxel Device 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.
Open End Port Type a port number or the ending port number in a range of port numbers.
Open Protocol Select the transport layer protocol from TCP, UDP, or TCP/UDP.
Cancel Click Cancel to exit this screen without saving.
OK Click OK to save your changes.