ZyXEL Communications Corporation VSG1435B101 Manuel D’Utilisation

 Chapter 12 Network Address Translation (NAT)

VSG1435-B101 Series User’s Guide

This screen lets you create new port triggering rules. Click Add new rule in the 
Port Triggering screen or click a rule’s Edit icon to open the following screen.

Figure 70   Port Triggering: Add/Edit 

WAN Interface

This field shows 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 ZyXEL 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.

Trigger Proto.

This is the trigger transport layer protocol. 

Open

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. 

Start

This is the first port number that identifies a service.

End

This is the last port number that identifies a service.

Open Proto.

This is the open transport layer protocol.

Modify

Click the Edit icon to edit this rule.

Click the Delete icon to delete an existing rule. 

Table 46   Network Settings > NAT > Port Triggering (continued)