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...

How Fast is Your Modem?

A V.32 or V.32bis modem can usually talk to the NAT at 57,600 bits per second (called 57.6Kbps), where a faster V.FC or V.34 modem can talk to the NAT at 115,200 bps. If we set the NAT to talk too slowly, you will not get the full benefit of the modem's data compression skills. If we set the NAT to talk too fast, it simply won't work at all. If you feel that you have chosen wrong, try the other setting. If you don't pick anything, we'll default to 115.2Kbps for a V.34 modem.

38.4Kbps for V.32 modem
57.6Kbps for V.32bis modem
115.2Kbps for V.34, V.FC or V.FAST modem

The modem is on which port?

If you don't specify, we'll configure it on COM2.

Modem on COM1 IRQ 4
Modem on COM2 IRQ 3

Idle Timeout

This is a very important piece of information. The DialNAT will disconnect your PPP connection after this much idle time. Setting this to an extremely large number may result in a very large bill from your Internet Service Provider. Setting it to a very small number is result in annoying premature disconnects. You should experiment with this value to find what works best for you. We suggest an initial value of 15 minutes, which is 900 seconds.

What will keep the link up? Any surfing or pinging by you. What won't keep it up? Pinging of you by someone on the net and RIP packets from your ISP.

Idle Timeout in SECONDS: No timeout! Never disconnect!
5 minutes (300 seconds)
10 minutes (600 seconds)
15 minutes (900 seconds)
30 minutes (1800 seconds)

Your Internet Service Provider

If you have a typical Internet Service Provider, you will put the account information in the dialer control file. If, however, you use an ISP that uses CHAP or PAP to verify that you are who you claim to be, the account information needs to go in the startup.htm file.

I use a "normal" ISP
I use internetMCI or another CHAP ISP
I use a PAP ISP

CHAP and PAP Account Information

If you are connecting to a CHAP or PAP ISP, you will need to put account and password information in the startup.htm file. This information is used in the authentication process that identifies you as a valid user. The CHAP information consists of a "system name" and a shared encryption secret. This "secret" is a large, unlikely value, that you and the CHAP ISP use in a simple but effective method of authentication. For a PAP ISP, put your PPP user ID in the first field, and your password in the second.

System Name or PAP ID
Password

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:\dialnat directory.

This page was last modified on June 18, 1997.

This information is proprietary to Network Safety Corporation. Network Safety, WebElite, DialNAT and NetNAT are trademarks of Network Safety Corporation. For information on our products and services, please contact our sales department.

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