Figure 72 NAT General
The following table describes the labels in this screen.
Table 50 NAT General
LABEL | DESCRIPTION |
|
|
Active | Select this check box to enable NAT. |
Network |
|
Address |
|
Translation |
|
(NAT) |
|
SUA Only | Select this radio button if you have just one public WAN IP address for your ZyXEL |
| Device. |
Full Feature | Select this radio button if you have multiple public WAN IP addresses for your ZyXEL |
| Device. |
Apply | Click Apply to save your changes back to the ZyXEL Device. |
|
|
Cancel | Click Cancel to reload the previous configuration for this screen. |
|
|
7.4 Port Forwarding
A port forwarding set is a list of inside (behind NAT on the LAN) servers, for example, web or FTP, that you can make visible to the outside world even though NAT makes your whole inside network appear as a single computer to the outside world.
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. You can allocate a server IP address that corresponds to a port or a range of ports.
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.
Chapter 7 Network Address Translation (NAT) Screens | 137 |