To start of NAT Configurator

Build Our NAT Configuration

Now we start filling in the blanks and building the actual configuration file.

Your Organization

We need the name of your organization, so we can put comments and copyright information into the file. Also, we need a one-word nickname for your organization. At Network Safety Corporation, we use NSC. It can be anything, as long as it's one word.

The name of your organization:
A Nickname for your organization:
The email address of the administrator:


Your Internal Network

Here we give you the IP Addresses that you will use in your internal network. These are from a "Class C" Network defined in RFC 1597.

The NAT's ethernet interface will have last legal host address in the network. The NAT will be what's called the "default gateway" or "default router" for all of the other computers on your network. This means that those computers will use the NAT to access anybody that is not right there on your network.

This information will be important to you as you install and operate you internal network, so you will wish to print this page.

Your IP Network 192.168.32.0
Your Netmask 255.255.255.0
Default Gateway 192.168.32.254
Broadcast Address 192.168.32.255

You will assign an address to each of your hosts and work stations from the 192.168.32.0 network, starting with 192.168.32.1. Any address from 192.168.32.1 through 192.168.32.253 is valid. For example, you might assign:

Work station 1 192.168.32.1
Work station 2 192.168.32.2
Work station 3 192.168.32.3
Work station 4 192.168.32.4
And, so on...


Your Public Network

Here you tell us about the IP Addresses you're using on your external Public network. In addition to the IP Address and Netmask that we should use for the NAT, we need the IP Address of the router on this network that is your default gateway to the Internet.

Public IP Address for the NAT:
The netmask for that network:
The IP Address of the Default Gateway:


Do It!

When you press "Build my Configuration," we will build and return a Web page that you should save on your computer's disk. That file will need to be renamed "startup.htm" and installed on your NAT in the c:\netnat directory.


This page was last modified on June 18, 1997.

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