ZyXEL Communications wireless n gigbit router zyxel manual NAT Application Screen, 165

	Chapter 11 Network Address Translation (NAT)
Table 58 Network > NAT > General
LABEL	DESCRIPTION
Server IP	In addition to the servers for specified services, NAT supports a default
Address	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 NBG-460N
	discards all packets received for ports that are not specified in the
	Application screen or remote management.
Wake up this	Select this to use WoL (Wake On LAN) to turn on the server specified in
target by Wake	the Server IP Address field when packets are received on ports not
On LAN	specified in the Application screen.
	Note: For more information on Wake On LAN see Section 22.6 on
	page 295.
Apply	Click Apply to save your changes back to the NBG-460N.
Reset	Click Reset to begin configuring this screen afresh.

11.4 NAT Application Screen

Port forwarding allows you to define the local servers to which the incoming services will be forwarded.

A port forwarding set is a list of inside (behind NAT on the LAN) servers, for example, web or FTP, that you can make accessible to the outside world even though NAT makes your whole inside network appear as a single machine to the outside world.

Use the Application screen to forward incoming service requests to the server(s) on your local network. You may enter a single port number or a range of port numbers to be forwarded, and the local IP address of the desired server. The port number identifies a service; for example, web service is on port 80 and FTP on port 21. In some cases, such as for unknown services or where one server can support more than one service (for example both FTP and web service), it might be better to specify a range of port numbers.

In addition to the servers for specified services, NAT supports a default server. A service request that does not have a server explicitly designated for it is forwarded to the default server. If the default is not defined, the service request is simply discarded.

Note: Many residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to your ISP.

NBG-460N User’s Guide

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