ZyXEL Communications Corporation P663HN51 Manual De Usuario

Chapter 7 Network Address Translation (NAT) Screens

P-663HN-51 User’s Guide

The following table describes the labels in this screen.  

In addition to the virtual servers for specified services, NAT supports a DMZ host 
IP address. The DMZ host receives packets from ports that are not specified in the 
applications in the virtual server configuration.

Note: If you do not assign a DMZ host IP address, the ZyXEL Device discards all 

packets received for ports that are not specified here or in the remote 
management setup.

Table 26   Advanced Setup > NAT > Port Triggering > Add 

Application 
Name

Either select a pre-defined application or select Custom Application and 
enter a name manually. 

Save/Apply When using a pre-defined service, if you do not want to modify the port 

numbers, you can click this button to save the changes and have the ZyXEL 
Device start using them.

Trigger 

The trigger port is a protocol and 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.

Trigger 

Port 

Start

Type a port number or the starting port number in a range of port numbers.

Trigger 

Port End

Type a port number or the ending port number in a range of port numbers.

Trigger 

Protocol

Select the protocol.

Open

Open 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. 

Open 

Start 

Port

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 protocol.

Save/Apply Click this button to save the changes and have the ZyXEL Device start using 

them.