Chapter 8 Network Address Translation (NAT)
Table 56 Services and Port Numbers
SERVICES | PORT NUMBER |
SNMP trap | 162 |
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PPTP (Point-to-Point Tunneling Protocol) | 1723 |
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Port Forwarding 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 88 Multiple Servers Behind NAT Example
A=192.168.1.33
192.168.1.1
B=192.168.1.34
IP address assigned by ISP
C=192.168.1.35 D=192.168.1.36
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P-2812HNU-51c User’s Guide | |
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