ZyXEL Communications ADSL VoIP IAD with 802.11g Wireless 2602HW Series - Manual (Page 124)

Prestige 2602HW Series User’s Guide
124 Chapter 8 Network Address Translation (NAT) Screens
8.3.3 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 42 Multiple Servers Behind NAT Example
8.4 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 27 Services and Port Numbers (continued)
SERVICES PORT NUMBER