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1995-04-20
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INTRODUCTION TO PACKET RADIO - Part 16 - by Larry Kenney, WB9LOZ
PUTTING TCP/IP ON THE AIR
INTRODUCTION
Getting your station set up for TCP/IP operation will require some time
and effort on your part. You just can't put a disk in your computer and go
on the air. You have to get an IP address, set up specific directories,
get some needed files, and make up a few necessary files for your own
operation. You also need a TNC that operates in KISS mode. Most now have
the KISS command available, but check your TNC operating manual before you
start anything else to ensure that the KISS command is available in your
TNC. Also while you have the manual out, learn how to use the KISS
command; it works differently from most commands you're familiar with.
THE SOFTWARE
The first thing you need, of course, is the software. The KA9Q Inter-
net Package, commonly called NET, has been the most common program in use,
but a later version of the program, called NOS, has now become the standard.
There are versions available for the PC and clones, the Macintosh, Amiga and
Unix computers. Where do you get it? The easiest source is a local ham
that has a copy of the version you need. Put a message on your local BBS
to see if there is anyone in your area that is already on TCP/IP. Not only
will you be able to get the software from him, but you'll have someone to
ask questions of if you have problems.
The Tucson Amateur Packet Radio Association (TAPR) has the version for
the PC and clones available for $4.00. You can write to them at TAPR, PO
Box 51114, Denton, TX 76206-0114, or call them at (817) 383-0000.
If you have a telephone modem, there are several sources available to
you. You can download the package from some of the ham related telephone
BBSs. It's available from Dennis Humphrey, WA6RDH's BBS in California at
(916) 678-1535, from Howard Leadmon, WB3FFV's BBS in Maryland at (301)
335-0858, or from Gary Sanders, N8EMR's BBS in Ohio at (614)-457-4227.
All use 8 bits, no parity, 1 stop bit. The software is also available
from Compuserve in the Hamnet section.
IP ADDRESS
In addition to the software, you also need to obtain an IP address.
This is a series of numbers that will uniquely identify your station on the
air. To get an address assigned, you need to contact the IP address
coordinator in your area. Ask around to find out who the local coordinator
is, or contact Brian Kantor, WB6CYT, the national IP address coordinator,
at 7108 Werner Street, San Diego, CA 92122.
Send the following information with your request:
- Your first name, last name and callsign.
- Your full mailing address.
- The city where your TCP/IP station is going to be located.
- Whether or not it's a home or work location.
- The callsign of your home BBS.
- Your Internet address, if you have one.
FILES NEEDED
A copy of the HOSTS.NET file is required for the NET program or a copy
of DOMAIN.TXT is need for NOS. They're available for downloading on many
of the packet BBSs. Check for a TCP/IP directory using the W command. If
you can't locate the file, ask your local sysop for assistance. The file is
fairly lengthy, so plan on spending a little time downloading it. The file
is used by the program to look up the IP address for each station you wish
to contact, so you'll need it before you go on the air with your TCP/IP
station.
If you're using the PC/clone version of NET, I strongly suggest that
you also get a copy of the file BEGIN.DOC, written by Gary Ford, N6GF. It
explains what you need to do to set up your station in clear, easy to
understand terminology and then goes into details on all of the commands
used with the NET program. There is documentation that comes with the
software, but I found it to be difficult to understand in many places. It
also isn't as complete as Gary's and the descriptions of some of the
functions are missing. Gary's documentation takes all of the guess work
out of the process. Gary's documentation is also available in booklet
form from the Northern California Packet Association, P.O. Box 61716,
Sunnyvale, CA 94088-1761 for $5.00.
There are two other files you'll also find very helpful once you're up
and running. One is called FINGER.DOC, describing the user identification
application, and the other is BM.DOC, the "BM User Manual" by Dave Trulli,
NN2Z.
- - -
Continued in Part 17.
- - -