ZyXEL VMG4927-B50A User Guide - Page 163

Chapter 11 Network Address Translation (NAT) Figure 85 Network Setting > NAT > Port Triggering The following table describes the labels in this screen. Table 57 Network Setting > NAT > Port Triggering LABEL DESCRIPTION Add New Rule # Status Service Name WAN Interface Trigger Start Port Click this to create a new rule. This is the index number of the entry. This field displays whether the port triggering rule is active or not. A yellow bulb signifies that this rule is active. A gray bulb signifies that this rule is not active. This field displays the name of the service used by this rule. This field shows the WAN interface through which the service is forwarded. The trigger port is a port (or a range of ports) that causes (or triggers) the VMG to record the IP address of the LAN computer that sent the traffic to a server on the WAN. Trigger End Port Trigger Proto. Open Start Port This is the first port number that identifies a service. This is the last port number that identifies a service. This is the trigger transport layer protocol. 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 VMG forwards the traffic with this port (or range of ports) to the client computer on the LAN that requested the service. Open End Port Open Protocol Modify This is the first port number that identifies a service. This is the last port number that identifies a service. This is the open transport layer protocol. Click the Edit icon to edit this rule. Click the Delete icon to remove an existing rule. 11.4.1 Add/Edit Port Triggering Rule 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. VMG4927-B50A / VMG9827-B50A User's Guide 163