Network Address Translation (Nat) Screens; Virtual Server: Services And Port Numbers; Virtual Servers Example; Configuring Virtual Servers - ZyXEL Communications P-663HN-51 User Manual

Chapter 7 Network Address Translation (NAT) Screens
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.

7.2.1 Virtual Server: Services and Port Numbers

See Appendix E on page 281

7.2.2 Virtual Servers Example

Let's say you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in
the example), port 80 to another (B in the example) and assign a default server IP
address of 192.168.1.35 to a third (C in the example). You assign the LAN IP
addresses and the ISP assigns the WAN IP address. The NAT network appears as a
single host on the Internet.
Figure 35 Multiple Servers Behind NAT Example

7.3 Configuring Virtual Servers

Note: The NAT screens are available only when you enable NAT in the WAN
configuration.
84
for commonly used port numbers.
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