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Dear Craig,<br>
<br>
thanks, that's helpful. I've learnt something today. :-)<br>
<br>
Now I am aware of the AMPR's work (nicely summarised on
<a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/AMPRNet">https://en.wikipedia.org/wiki/AMPRNet</a> ). It hints at TCP/IP & a
non routeable Class A being allocated to the AMPR network, with some
people using NAT to carry traffic across -- but was that really done
on a larger scale? I recall regulatory issues at the time, where
Packet Radio was seen as a broadcast medium & you needed your
radio license to operate a TNC. Thus whilst it was legally possible
to send out an email to the Internet from a Packet Radio node, as
you held a license to do so, it was deemed illegal to receive your
emails from the Internet to your TNC - as the sender did not hold a
radio license. I am speaking of 1989 so 10+ years later than Bob
Kahn's work.<br>
Is the restriction still in place now?<br>
Kindest regards,<br>
<br>
Olivier<br>
<br>
<div class="moz-cite-prefix">On 31/08/2016 15:50, Craig Partridge
wrote:<br>
</div>
<blockquote
cite="mid:14316BEF-D99C-4F91-8182-6FC0B08DF31A@aland.bbn.com"
type="cite">
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Hi Olivier:
<div class=""><br class="">
</div>
<div class="">What the article hints at, but doesn’t quite say, is
that TCP was the answer to a question, namely how to do we link
packet radio networks (and some other</div>
<div class="">types of networks) to a network like ARPANET?</div>
<div class=""><br class="">
</div>
<div class="">As I recall the story (I arrived on the scene
later), Bob Kahn was in the process of funding Packet Radio
Networks and he and Vint needed to solve the</div>
<div class="">interconnection problem and that motivated the TCP
paper.</div>
<div class=""><br class="">
</div>
<div class="">Thanks!</div>
<div class=""><br class="">
</div>
<div class="">Craig</div>
<div class=""><br class="">
</div>
<div class="">PS: Footnote — originally TCP contained both TCP and
what we now call IP. IP was made a standalone protocol after a
hallway debate in (I believe) 1977.</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
<div>
<blockquote type="cite" class="">
<div class="">On Aug 31, 2016, at 3:33 AM, Olivier MJ
Crepin-Leblond <<a moz-do-not-send="true"
href="mailto:ocl@gih.com" class="">ocl@gih.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
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http-equiv="Content-Type" class="">
<div bgcolor="#FFFFFF" text="#000000" class=""> <br
class="">
<br class="">
<div class="moz-cite-prefix">On 31/08/2016 05:13,
Barbara Denny wrote:<br class="">
</div>
<blockquote
cite="mid:2144299268.2585311.1472613209553@mail.yahoo.com"
type="cite" class=""><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]-->
<div style="background-color: rgb(255, 255, 255);
font-family: 'times new roman', 'new york', times,
serif; font-size: 13px;" class="">
<div id="yui_3_16_0_ym19_1_1472513460489_184598"
class="">For those interested, here is another
article related to the Packet Radio/ARPANET August
Internet demo. BTW, the SFgate article didn't
make it clear that another packet radio located at
Stanford was used to reach SRI. The November 1977
demo also added a satellite, SATNET, to make it a
3 network test.<br class="">
</div>
<div id="yui_3_16_0_ym19_1_1472513460489_184599"
class=""><br class="">
</div>
<div id="yui_3_16_0_ym19_1_1472513460489_184601"
dir="ltr" class="">barbara<br class="">
</div>
<br class="">
<a moz-do-not-send="true"
id="yui_3_16_0_ym19_1_1472513460489_184585"
class="enhancr2_c076a826-2b50-5996-f32f-873c2dcddda2"
href="https://www.theguardian.com/technology/2016/jul/15/how-the-internet-was-invented-1976-arpa-kahn-cerf?CMP=share_btn_link">How
the internet was invented</a><br class="">
</div>
</blockquote>
<br class="">
Thanks for this link. The mentioning of packet radio
raised my interest and I was not aware of the Stanford
experiments. Yet I am somehow puzzled as packet radio
used AX.25. Thus whilst I understand the packet
transmission of data was proven, is packet radio really
that closely related to TCP/IP? <br class="">
Kindest regards,<br class="">
<br class="">
Olivier<br class="">
</div>
_______<br class="">
internet-history mailing list<br class="">
<a moz-do-not-send="true"
href="mailto:internet-history@postel.org" class="">internet-history@postel.org</a><br
class="">
<a class="moz-txt-link-freetext" href="http://mailman.postel.org/mailman/listinfo/internet-history">http://mailman.postel.org/mailman/listinfo/internet-history</a><br class="">
Contact <a class="moz-txt-link-abbreviated" href="mailto:list-owner@postel.org">list-owner@postel.org</a> for assistance.<br class="">
</div>
</blockquote>
</div>
<br class="">
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Olivier MJ Crépin-Leblond, PhD
<a class="moz-txt-link-freetext" href="http://www.gih.com/ocl.html">http://www.gih.com/ocl.html</a>
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