ZyXEL Communications P-662HW-63, User Manual

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Prestige 662HW Series User’s Guide
133 Chapter 10 Network Address Translation (NAT) Screens
10.3.3 Configuring Servers Behind SUA (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.
IP address assigned by ISP.
Figure 46 Multiple Servers Behind NAT Example
10.4 Selecting the NAT Mode
You must create a firewall rule in addition to setting up SUA/NAT, to allow traffic from the
WAN to be forwarded through the Prestige.
Click NAT to open the following screen.
SNMP trap 162
PPTP (Point-to-Point Tunneling Protocol) 1723
Table 32 Services and Port Numbers (continued)
SERVICES PORT NUMBER