ZyXEL P-663HN-51 User Guide - Page 83
Network Address Translation (NAT) Screens, 7.1 NAT Overview, 7.2 NAT Virtual Servers
View all ZyXEL P-663HN-51 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 83 highlights
CHAPTER 7 Network Address Translation (NAT) Screens This chapter discusses how to configure NAT on the ZyXEL Device. 7.1 NAT Overview NAT (Network Address Translation - NAT, RFC 1631) is the translation of the IP address of a host in a packet, for example, the source address of an outgoing packet, used within one network to a different IP address known within another network. 7.2 NAT Virtual Servers Configure NAT virtual server (port forwarding) entries to have the ZyXEL Device forward traffic from the WAN to LAN computers. You might do this to get particular games or services to work through NAT. You can also make servers, for example, web or FTP, 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 P-663HN-51 User's Guide 83