Figure 9-3 Multiple Servers Behind Nat Example - ZyXEL Communications Prestige 652H series User Manual

Prestige 652H/HW Series User's Guide
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HTTP (Hyper Text Transfer protocol or WWW, Web)
POP3 (Post Office Protocol)
NNTP (Network News Transport Protocol)
SNMP (Simple Network Management Protocol)
SNMP trap
PPTP (Point-to-Point Tunneling Protocol)
9.3.2 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.
9-6
Table 9-3 Services and Port Numbers
SERVICES

Figure 9-3 Multiple Servers Behind NAT Example

PORT NUMBER
79
80
110
119
161
162
1723
IP address assigned
by ISP.
NAT