
The following procedures show how to configure a server behind NAT.
Step 1. Enter 15 in the Main Menu to go to Menu 15-NAT Setup.
Step 2. Enter 2 to go to Menu 15.2-NAT Server Setup.
Step 3. Enter the service port number in the Port# field and the inside IP address of the server in the IP
Address field.
Step 4. Press [SPACEBAR] at the 'Press ENTER to confirm...' prompt to save your configuration after
you define all the servers or press ESC at any time to cancel.
Menu 15.2 - NAT Server Setup
Rule Start Port No. End Port No. IP Address
---------------------------------------------------
1. Default Default 0.0.0.0
2. 80 80 192.168.1.33
3. 21 21 192.168.1.34
4. 0 0 0.0.0.0
5. 0 0 0.0.0.0
6. 0 0 0.0.0.0
7. 0 0 0.0.0.0
8. 0 0 0.0.0.0
9. 0 0 0.0.0.0
10. 0 0 0.0.0.0
11. 0 0 0.0.0.0
12. 0 0 0.0.0.0
Press ENTER to Confirm or ESC to Cancel:
The most often used port numbers are shown in the following table. Please refer RFC 1700 for further
information about port numbers.
Service Port Number
FTP 21
Telnet 23
SMTP 25
DNS (Domain Name Server) 53
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