Selecting The Nat Mode; Figure 7-3 Multiple Servers Behind Nat Example - ZyXEL Communications Prestige 660R User Manual

Prestige 660R ADSL 2+ Access Gateway
POP3 (Post Office Protocol)
NNTP (Network News Transport Protocol)
SNMP (Simple Network Management Protocol)
SNMP trap
PPTP (Point-to-Point Tunneling Protocol)
7.3.2 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.
7.4

Selecting the NAT Mode

You must create a firewall rule in addition to setting up SUA/NAT, to allow traffic
Click NAT to open the following screen.
7-6
Table 7-3 Services and Port Numbers
SERVICES

Figure 7-3 Multiple Servers Behind NAT Example

from the WAN to be forwarded through the Prestige.
PORT NUMBER
110
119
161
162
1723
IP address assigned
by ISP.
NAT