ZyXEL GS-105I User Guide - Page 173

Chapter 11 Network Address Translation (NAT) Figure 97 Port Triggering: Add/Edit The following table describes the labels in this screen. Table 59 Port Triggering: Configuration Add/Edit LABEL DESCRIPTION Active Service Name WAN Interface Trigger Start Port Select Enable or Disable to activate or deactivate the rule. Enter a name to identify this rule using keyboard characters (A-Z, a-z, 1-2 and so on). Select a WAN interface for which you want to configure port triggering rules. 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. Trigger End Port Trigger Protocol Open Start Port Type a port number or the starting port number in a range of port numbers. Type a port number or the ending port number in a range of port numbers. Select the transport layer protocol from TCP, UDP, or TCP/UDP. 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. Open End Port Open Protocol Cancel OK Type a port number or the starting port number in a range of port numbers. Type a port number or the ending port number in a range of port numbers. Select the transport layer protocol from TCP, UDP, or TCP/UDP. Click Cancel to exit this screen without saving. Click OK to save your changes. 11.4 DMZ Settings A client in the Demilitarized Zone (DMZ) is no longer behind the Zyxel Device and therefore can run any Internet applications such as video conferencing and Internet gaming without restrictions. This, however, may pose a security threat to the Zyxel Device. PX7511-B0 User's Guide 173