On Mon, May 22, 2017 at 5:28 AM, Paul Ruizendaal <pnr@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

​Indeed...​

 

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 machines.​