ZyWALL 5 User’s Guide
450 Chapter 33 Network Address Translation (NAT)
Follow these steps to configure a server behind NAT:
1 Enter 15 in the main menu to go to Menu 15 - NAT Setup.
2 Enter 2 to go to Menu 15.2 - NAT Server Setup and configure the address mapping
rules for the WAN port.
3 Select Edit Rule in the Select Command field; type the index number of the NAT server
you want to configure in the Select Rule field and press [ENTER] to open Menu 15.2.x -
NAT Server Configuration (see the next figure).
Figure 261 Menu 15.2.x: NAT Server Configuration
The following table describes the fields in this screen.
4 Enter a port number in the Start Port field. To forward only one port, enter it again in the
End Port field. To specify a range of ports, enter the last port to be forwarded in the End
Port field.
15.2.1 - NAT Server Configuration
Wan= 1 Index= 1
------------------------------------------------
Name= 1
Active= Yes
Start port= 21 End port= 25
IP Address= 192.168.1.33
Press ENTER to Confirm or ESC to Cancel:
Table 178 Menu 15.2.1: NAT Server Configuration
FIELD DESCRIPTION
WAN This is the WAN port (server set).
Index This is the index number of an individual port forwarding server entry.
Name Enter a name to identify this port-forwarding rule.
Active Press [SPACE BAR] and then [ENTER] to select Yes to enable the NAT server entry.
Start Port Enter a port number in the Start Port field. To forward only one port, enter it again in
the End Port field. To specify a range of ports, enter the last port to be forwarded in
the End Port field.
End Port
IP Address Enter the inside IP address of the server.
When you have completed this menu, press [ENTER] at the prompt “Press ENTER to Confirm…” to
save your configuration, or press [ESC] at any time to cancel.
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