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Multiple Network Address Translation
Select ADD NAT PUBLIC RANGE and press Return. You are returned to the Network Address Translation screen.
Next, select Show/Change Map List and choose
Add NAT Map
First Private Address: | 192.168.1.1 |
Last Private Address: | 192.168.1.5 |
Use NAT Public Range...
ADD NAT MAP | CANCEL |
Select Use NAT Public Range and from the
This will statically map the first five public IP addresses to the first five corresponding private IP addresses and will map 206.1.1.6 to the remaining private IP addresses using PAT.
Notes on the example
The
The PAT part of this example setup will allow any user on the Netopia Router's LAN with an IP address in the range of 192.168.1.6 through 192.168.1.254 to initiate traffic flow to the outside world (for example, the Internet). No one on the Internet would be able to initiate a conversation with them.
The Static mapping part of this example will allow any of the machines in the range of addresses from 192.168.1.1 through 192.168.1.5 to communicate with the outside world as if they were at the addresses
206.1.1.1through 206.1.1.5, respectively. It also allows any machine on the Internet to access any service (port) on any of these five machines.
You may decide this poses a security risk. You may decide that anyone can have complete access to your FTP server, but not to your router, and only limited access to the desired services (ports) on the Web and Mail servers.