ZyXEL P-335U User Guide - Page 117
NAT Application Screen
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P-334U/P-335U User's Guide The following table describes the labels in this screen. Table 41 NAT General LABEL DESCRIPTION Network Address Translation Default Server Apply Reset Network Address Translation (NAT) allows the translation of an Internet protocol address used within one network (for example a private IP address used in a local network) to a different IP address known within another network (for example a public IP address used on the Internet). Select the check box to enable NAT. In addition to the servers for specified services, NAT supports a default server. A default server receives packets from ports that are not specified in the Application screen. If you do not assign a Default Server IP address, the ZyXEL Device discards all packets received for ports that are not specified in the Application screen or remote management. Click Apply to save your changes back to the ZyXEL Device. Click Reset to begin configuring this screen afresh. 9.4 NAT Application Screen Port forwarding allows you to define the local servers to which the incoming services will be forwarded. To change your ZyXEL Device's port forwarding settings, click Network > NAT > Application. The screen appears as shown. Note: If you do not assign a Default Server IP address in the NAT > General screen, the ZyXEL Device discards all packets received for ports that are not specified in this screen or remote management. Refer to Appendix G on page 309 for port numbers commonly used for particular services. Chapter 9 Network Address Translation (NAT) 117