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1994-11-13
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Date: Wed, 13 Jul 94 04:30:31 PDT
From: Ham-Digital Mailing List and Newsgroup <ham-digital@ucsd.edu>
Errors-To: Ham-Digital-Errors@UCSD.Edu
Reply-To: Ham-Digital@UCSD.Edu
Precedence: Bulk
Subject: Ham-Digital Digest V94 #231
To: Ham-Digital
Ham-Digital Digest Wed, 13 Jul 94 Volume 94 : Issue 231
Today's Topics:
44.x subnets
IP Address es AmprNet
One-way automated digital=bad
Send Replies or notes for publication to: <Ham-Digital@UCSD.Edu>
Send subscription requests to: <Ham-Digital-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Ham-Digital Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-digital".
We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party. Your mileage may vary. So there.
----------------------------------------------------------------------
Date: 13 Jul 1994 02:24:31 GMT
From: gateway.wiltel.com!chrisw@uunet.uu.net
Subject: 44.x subnets
To: ham-digital@ucsd.edu
Brian Kantor (brian@nothing.ucsd.edu) wrote:
: How many of the regional subnets are connected by routers? How many are
: served by the SAME router? And why are those served by the same router
: then separate subnets?
: Subnetting: do it only when there's an advantage to it.
: - Brian
Geez, Brian, I can't believe you of all people are saying this--
there already is an advantage to it.
If we start suggesting now that people use their old ip
address when they move into a new area, we're going to end up with
a real mess. It's already hard enough to teach some hams what
ip numbering and a netmask is all about, nevermind if we start
throwing together a mess of different subnets in the same area.
When I put a Internet/AMPR gateway on the air a couple years
ago in Kansas, it was partly the consistancy of the subnetting
which allowed it to work. Can you image if I had to advertise
routes for the 44.122.1.0 subnet and also these three or four ip addresses
of guys who moved into the area but kept their old ip number?
You don't want to go strictly by geographic region, but you should
let the local coordinaters then subdivide according to their
specific situation. Just keep it in some kind of order so that
as things develop we don't have to worry about all kinds of
renegade addresses.
--
Chris Whittenburg Telecom Engineer
chris_whittenburg@wiltel.com (918) 588-5845
---
"ATM simply doesn't buy us anything over a scaled up version of IP"
-Van Jacobson in a discssion panel on June 28th, 1993.
------------------------------
Date: 13 Jul 1994 01:13:19 GMT
From: ihnp4.ucsd.edu!usc!cs.utexas.edu!howland.reston.ans.net!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!news.cic.net!phillips@network.ucsd.edu
Subject: IP Address es AmprNet
To: ham-digital@ucsd.edu
st3qi@elroy.uh.edu (Brad Killebrew N5LJV) writes:
>Is there a FAQ for AmprNet floating arond? If you have it, would appreciate
>it if you could e-mail it to me (st3qi@jetson.uh.edu). Would also like to
>know if there is a master list of IP addresses for AmprNet. Thanks es 73.
You can ftp the current "master" list, both forward and reverse translation
versions, from ucsd.edu. It's available both in text format and as a zip
archive.
I haven't seen a FAQ, but there is plenty of good documentation. Several
fine beginner's guides are also available at ucsd.edu, and I heartily
recommend Ian Wade's book NOSIntro.
--
Gary Lee Phillips <phillips@colum.edu>
Computer Services Librarian (312) 663-1600 x359
Columbia College, Chicago #include <std_disclaimers.here>
------------------------------
Date: Wed, 13 Jul 1994 02:34:04 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!usenet.ins.cwru.edu!news.csuohio.edu!sww@network.ucsd.edu
Subject: One-way automated digital=bad
To: ham-digital@ucsd.edu
: Notice that there is no incentive to create "smart systems" that can find one
: another and communicate while dodging interference and other QSO's in the HF
: bands. This is easily doable, but apparently stands to cut into the big profi
Don't be too sure. Remember, the FCC had things frozen for eight years.
Advancement was essentially prohibited. You had only the provisions of the
stay with only the annointed few.
73,
Steve
NO8M.#NEOH.OH.USA.NA
------------------------------
Date: 12 Jul 1994 15:20:26 GMT
From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!howland.reston.ans.net!EU.net!Germany.EU.net!Munich.Germany.EU.net!thoth.mch.sni.de!news.sni.de!nanette!norton!schro@network.ucsd.edu
To: ham-digital@ucsd.edu
References <1994Jul8.121842.16383@rsd.dl.nec.com>, <2vk7iq$f0u@darkstar.UCSC.EDU>, <r5m7kexGLrM1067yn@cris.com>Muni
Reply-To : schroeder.pad@sni.de
Subject : Re: GTOR--A big improvement?
In <r5m7kexGLrM1067yn@cris.com> Muphaus@cris.com (Marv Uphaus) writes:
[some deleted]
>AMTOR is out because most people never figured it out and those who did
>don't have the Upper/Lower case capabilities that digital modes need
>today...
This is no longer true. All the APLINK (Amtor Packet Link) mailboxes
around the world use an extended amtor code with upper/lower case and
extended punctuation. It has all printable us-ascii characters and is
compatible to older equipment. This feature is supported for example
by PK-232s and HamComm 3.0.
I also don't see what's so difficult to get amtor going. It requires a
transceiver with fast rx/tx switching, but that is not a problem with
newer models. I have used an FT-747, TS-440 and TS-950 without any trouble.
Those who don't know what they are doing will have problems with any mode :-)
73 de Django
DL5YEC
------------------------------
Date: 12 Jul 1994 14:36:14 GMT
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!math.ohio-state.edu!magnus.acs.ohio-state.edu!csn!col.hp.com!jms@network.ucsd.edu
To: ham-digital@ucsd.edu
References <rogjdCsoHrC.Iw7@netcom.com>, <JUK8kiubGA7G066yn@access.digex.net>, <rogjdCst5MG.65x@netcom.com>io-state
Subject : Re: One-way automated digital=bad
Roger Buffington (rogjd@netcom.com) wrote:
: I just don't understand why the semi-automated crowd was so adament about
: being allowed to operate in the keyboard/keyboard segment as opposed to
: the automated segment of the band.
They didn't want to be interfered with by the automated stations
coming up on top of them?
Mike, K0TER
------------------------------
Date: Wed, 13 Jul 1994 02:13:53 GMT
From: ihnp4.ucsd.edu!pacbell.com!amdahl!netcomsv!netcom.com!rogjd@network.ucsd.edu
To: ham-digital@ucsd.edu
References <JUK8kiubGA7G066yn@access.digex.net>, <rogjdCst5MG.65x@netcom.com>, <2vu9ou$sn3@hp-col.col.hp.com>
Subject : Re: One-way automated digital=bad
Mike Stansberry (jms@col.hp.com) wrote:
: Roger Buffington (rogjd@netcom.com) wrote:
: : I just don't understand why the semi-automated crowd was so adament about
: : being allowed to operate in the keyboard/keyboard segment as opposed to
: : the automated segment of the band.
: They didn't want to be interfered with by the automated stations
: coming up on top of them?
Grin.....
Yeah, I think that was probably it.
I am truly baffled regarding how anyone could object to putting the
semi-auto boys up there with the auto boys. But they were ADAMANT about
wanting the same sub band as the humans.
Oh well....
--
rogjd@netcom.com
Glendale, CA
AB6WR
------------------------------
Date: Wed, 13 Jul 1994 02:10:34 GMT
From: netcomsv!netcom.com!rogjd@decwrl.dec.com
To: ham-digital@ucsd.edu
References <2vk7iq$f0u@darkstar.UCSC.EDU>, <r5m7kexGLrM1067yn@cris.com>, <2vucbq$gvl@nanette.pdb.sni.de>
Subject : Re: GTOR--A big improvement?
W.F.Schroeder (schro@norton.sni.de) wrote:
: In <r5m7kexGLrM1067yn@cris.com> Muphaus@cris.com (Marv Uphaus) writes:
: [some deleted]
: >AMTOR is out because most people never figured it out and those who did
: >don't have the Upper/Lower case capabilities that digital modes need
: >today...
: This is no longer true. All the APLINK (Amtor Packet Link) mailboxes
: around the world use an extended amtor code with upper/lower case and
: extended punctuation. It has all printable us-ascii characters and is
: compatible to older equipment. This feature is supported for example
: by PK-232s and HamComm 3.0.
: I also don't see what's so difficult to get amtor going. It requires a
: transceiver with fast rx/tx switching, but that is not a problem with
: newer models. I have used an FT-747, TS-440 and TS-950 without any trouble.
: Those who don't know what they are doing will have problems with any mode :-)
: 73 de Django
: DL5YEC
Here in the States it's pretty rare to have a keyboard-to-keyboard amtor
qso in upper/lower case, although I know that the PK232, at least, does
support it.
Not sure why. I know at one point there was a question as to whether or
not that is legal in the USA.
Perhaps the real answer is that most of those who would have gotten up to
speed on upper/lower case amtor simply switched to Pactor?
73
--
rogjd@netcom.com
Glendale, CA
AB6WR
------------------------------
Date: 13 Jul 1994 10:10:48 GMT
From: nothing.ucsd.edu!brian@network.ucsd.edu
To: ham-digital@ucsd.edu
References <9407081953.AA21468@dns>, <2vnt14$9p8@network.ucsd.edu>, <2vvj8v$7c4@gateway.wiltel.com>
Subject : Re: 44.x subnets
I don't advocate retaining your old address when you move, nor do I
object to subnets that make sense.
But there are people who want to do truly clueless subnetting like
dividing Los Angeles into tiny little districts that can already talk to
each other and which won't be routed via community routers. That's the
kind of subnetting you want to avoid.
As I say, subnet when there's a reason for it. Don't when there's not.
- Brian
------------------------------
End of Ham-Digital Digest V94 #231
******************************