ZyXEL Communications Prestige 861H-G1, User Manual

Page: 168 / 275

Prestige 861H User’s Guide
22-8 Network Address Translation (NAT)
Figure 22-9 Menu 15.2.1 NAT Server Setup
1. Enter a port number in an unused Start Port No field. To forward only one port, enter it
again in the End Port No field. To specify a range of ports, enter the last port to be
forwarded in the End Port No field.
2. Enter the inside IP address of the server in the IP Address field. In the following figure, you
have a computer acting as an FTP, Telnet and SMTP server (ports 21, 23 and 25) at
192.168.1.33.
3. Press [ENTER] 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.
4.
Figure 22-10 Multiple Servers Behind NAT Example
22.5 General NAT Examples
The following are some examples of NAT configuration.
Menu 15.2 - NAT Server Setup
Rule Start Port No. End Port No. IP Address
---------------------------------------------------
1. Default Default 0.0.0.0
2. 21 21 192.168.1.33
3. 0 0 0.0.0.0
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: