Chapter 10 Network Address Translation (NAT)
The most often used port numbers and services are shown in Appendix D on page 219. Please refer to RFC 1700 for further information about port numbers.
Note: Many residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to your ISP.
10.4.1Configuring Servers Behind Port Forwarding (Example)
Let's say you want to assign ports
Figure 36 Multiple Servers Behind NAT Example
A=192.168.1.33 LAN |
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B=192.168.1.34 |
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192.168.1.1
C=192.168.1.35
IP Address assigned by ISP
The following table summarizes the settings described in the above example.
Table 23 Multiple Servers Behind NAT Example
| SERVERS | PORTS | DEFAULT SERVER |
| IP | ||
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A | FTP | 192.168.1.33 | |
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B | Telnet | 23 | 192.168.1.34 |
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C | SMTP | 25 | 192.168.1.35 |
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