ZyXEL P-2302R Bedienungsanleitung Seite 134

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P-2302R Series User’s Guide
133 Chapter 12 Network Address Translation (NAT) Screens
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 for port numbers commonly used for particular services.
DNS (Domain Name System) 53
Finger 79
HTTP (Hyper Text Transfer Protocol or WWW, Web) 80
POP3 (Post Office Protocol) 110
NNTP (Network News Transport Protocol) 119
SNMP (Simple Network Management Protocol) 161
SNMP trap 162
PPTP (Point-to-Point Tunneling Protocol) 1723
Table 34 Services and Port Numbers
SERVICES PORT NUMBER
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