ZyXEL P-660HW-T1 v2 User Guide - Page 131
Configuring Port Forwarding
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P-660HW-T v2 User's Guide 8.4.3 Configuring Servers Behind Port Forwarding (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 73 Multiple Servers Behind NAT Example 8.5 Configuring Port Forwarding Note: The Port Forwarding screen is available only when you select SUA Only in the NAT > General screen. If you do not assign a Default Server IP address, the ZyXEL Device discards all packets received for ports that are not specified here or in the remote management setup. Click Network > NAT > Port Forwarding to open the following screen. See Table 43 on page 130 for port numbers commonly used for particular services. Figure 74 NAT Port Forwarding Chapter 8 Network Address Translation (NAT) Screens 131