NEW! Demo the NetNAT!

The Net NAT
Internet Firewall

The Net NAT is the 32-bit version of our NAT product that has ethernet interfaces only. We have shipped versions with from two to four ethernets. The two-ethernet versions perform pure NAT functions, while extra ethernets give the administrator the ability to segment the local network without having to buy an expensive multi-ethernet router from another vendor.

The drawing at left illustrates the use of the Net NAT with two ethernet interfaces. The Public interface is on a Public Segment, which uses a router to connect to the Internet.

The Private interface is on your Intranet. The devices on your Intranet use the NAT as their "default gateway" to the outside world. The topology and computer makeup of your private Intranet are invisible to all in the Internet.

Public vs Private Interfaces

We call the interface that the Internet can see the "public" interface. This is the one with a registered address, usually loaned to you by your Internet Service Provider. We call the interface or interfaces that attach to your local intranet "private" interfaces. Private interfaces may use most any IP Network Addresses that you wish, including those registered to others, although we encourage the use of those specified in Internet Standard RFC 1597. No addresses from your "private" network will be seen by the outside world. If desired, and if you have multiple private ethernet interfaces on your Net NAT, your private networks may "see" each other without restriction. This feature allows you to subnet your intranet very inexpensively.

Competition Comparison

In the NAT world our competition is Network Translation Inc, which manufactures the Personal Internet Exchange (PIX). We have each been shipping since 1994, except that our products have evolved with the needs of the Internet community. A feature and price comparison is provided for your reading.

Model Lineup

Current Models of the Net NAT product are:

This page was last modified on February 9, 1998.


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