[TUHS] Unix with TCP/IP for small PDP-11s

Clem Cole clemc at ccc.com
Tue May 23 00:09:30 AEST 2017

On Mon, May 22, 2017 at 5:28 AM, Paul Ruizendaal <pnr at planet.nl> wrote:

> There are two other routes to TCP/IP on a PDP11 without split I/D:
> - 3COM's TCP/IP package (initially an overlay over V7, soon after also
> over 2BSD);
​It's called UNET​

> I believe the source to this is lost.
​So far that is true, there are a couple of leads including a couple of
unread tapes in my own basement.   The original authors and I have been in
touch.   Assuming we can find and recover it, there is still an open issue
of copyright.​

> ​.....​
> Note that these last two options have very different API's

> and would not be so easy to work with.
​Mumble ... it just means post-Joy sockets code does not 'just work.'  UNET
uses the Rand interface, which is similar to the interface MIT used for
Chaos and Chesson used for the ARPAnet code at UofI, so there are programs
that talk to it.   We had mail, ftp and telnet working just fine.​

​ Back in the day and IIRC we were playing with a port of the MIT SUPDUP
code but I do not remember if that ever worked on the small address
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