NetNAT Archive Installation

Installing the NetNAT

Whether you are evaluating the NetNAT for your use or retrieving it for a production installation, these instructions are for you. If the NetNAT is started without a valid serial number and authentication key, it will run in a "shareware" mode that supports a maximum of 2 internal users on your private network. This allows you to try out the NetNAT without committing to the product.

Preliminary Information

The PC that you need for your NetNAT platform should have at least the following characteristics.

A 486DX33 or faster computer. A Pentium P5-100 is a very good choice.
Caldera OpenDOS or MS-DOS version 6.22 or newer.
At least 8 megabytes of RAM. More memory will increase the capacity for bursty traffic.
At least 5 megabytes of available Hard Disk.
Two ethernet or fast ethernet NICs (Network Interface Controllers) with packet drivers.

The Archive

The NetNAT installation archive will create two directories on your NAT PC's c-drive. Those are c:/netnat and c:/safe. The c:/netnat directory contains all the executables, configuration files and online manual pages for the NetNAT software. The c:/safe directory contains a preliminary password file that has a "root" password for you to use for Web Browser administration of the NetNAT, and for ftp to or from your NetNAT from within your private network.

The archive does not create or modify any other files or directories on your NAT target PC.

Retrieval and Installation

To retrieve and install the NetNAT archive, perform the following steps:

Retrieve the README file from our ftp server to see if there are any updates to this information.
Retrieve the latest 32-bit archive from our ftp server.
Retrieve any updated executables that may be available as mentioned in the README file.
Unzip the archive file onto a floppy disk.
Gather your configuration information so that you may enter it during the install process.
Run install.exe from the floppy on the PC you will use as your NAT.
Answer the questions with your configuration information. Use F1 to get help during the configuration script process.
Examine the config.tst and autoexec.tst files that are created in the new c:/Netnat directory. These files are proposed config.sys and autoexec.bat files for the NAT.
Edit the config.tst and autoexec.tst files to fit your actual PC configuration, including the loading of the packet drivers for your ethernet cards. The packet drivers need to be told to be visible to the NAT on software interrupt 96 and 97 (hex 60 and hex 61), with 96 being your public interface and 97 being your private interface.
Install the config.tst and autoexec.tst into the root of the c-drive as config.sys and autoexec.bat when you are satisfied with them.
Examine the startup.tst file that the configuration script created in the c:/Netnat directory. This is a proposed startup.htm file, which is the runtime configuration file for the NAT.
Rename the startup.tst file to startup.htm, leaving it in the c:/netnat directory.
Reboot to apply the changes that come about through the new config.sys and autoexec.bat files. The NAT should start automatically.
At the keyboard of the NAT, type "if" and press enter. This will display the known interfaces. Look for interfaces called "en0" and "en1" which are your ethernets. If both are not displayed, then one or both of your packet drivers aren't installed correctly. Consult the NIC documentation to determine the proper installation options.
Configure a workstation on your private network to use the NetNAT's private IP Address as the default gateway, and try to access the Internet.