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

Warner Losh imp at bsdimp.com
Sun May 21 06:29:20 AEST 2017

On Sat, May 20, 2017 at 1:05 PM, <arnold at skeeve.com> wrote:

> Warner Losh <imp at bsdimp.com> wrote:
> > I read the sources to see the TCP/IP support was there (that's the bit
> > about adding Berkeley Sockets). I see nowhere that it's excluded for the
> > non I/D machines, but haven't tried it first hand. I got interested not
> > because of the PDP-11, but because I have an old Rainbow that recently
> > started running Venix (v7-based version) and was trolling around for some
> > way to do TCP/IP to it (though w/o readily available ethernet cards, I'm
> > not sure it is a viable project).
> Boy is the memory going.  What was the TCP/IP implementation people
> ran on DOS to do connections over serial lines?  Could that be found
> and revived for such a system?

That would be mTCP with CSLIP. And under DOS people have that running
already, but there's limitations and it's not designed for a Unix kernel....

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