Configuring Servers Behind Sua (Example); Configuring Sua Server; Figure 48 Multiple Servers Behind Nat Example - ZyXEL Communications VoIP Station Gateway P-2302R Series User Manual

P-2302R Series User's Guide
Table 34 Services and Port Numbers
SERVICES
DNS (Domain Name System)
Finger
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)

12.3.3 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

Figure 48 Multiple Servers Behind NAT Example

12.4 Configuring SUA Server

Note: If you do not assign a default server IP address, the Prestige discards all
packets received for ports that are not specified in this screen or remote
management.
Click SUA/NAT to open the SUA Server screen.
Refer to Table 34 on page 132
133
for port numbers commonly used for particular services.
Chapter 12 Network Address Translation (NAT) Screens
PORT NUMBER
53
79
80
110
119
161
162
1723