3Com OfficeConnect 3CR856-95 User Manual page 42

Figure 35 Network Address Translation Screen
Setting up One-to-Many NAT
This is very easy to set up and the Gateway's default mode. It
works with any IP Allocation Mode and will map all the
addresses on your LAN to the Internet address of your Gateway.
To set up One-to-Many NAT:
Select One-to-Many NAT from the NAT Mode drop-down box.
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2 Click the Apply button to save your changes.
Setting up One-to-One NAT
The following criteria must be met to be able to use One-to-One
NAT:
You must have a static Internet IP address for every computer
I
on your network plus one for the Gateway itself.
The addresses must be in one continuous block in the same
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subnet
You must have selected Static IP Address as your IP Allocation
I
Mode and have given your Gateway the first of the Internet
addresses allocated by your ISP.
Figure 36 One-to-One NAT Screen
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