There's a copy of ultrix-11, which is v7 based with some 4.1BSD additions,
including sockets and a TCP/IP stack. Don't know if it runs on the smaller
PDP-11, but it looks like it might. The sources are in the TUHS archives.
Seems like the best low-end v7ish kernel with TCP/IP around, but I've not
used it extensively.
Warner
On Fri, May 19, 2017 at 1:04 PM, Ron Natalie <ron(a)ronnatalie.com> wrote:
To my knowledge no. We had already gone to code
overlays on the 11/34’s
just to get the pre-TCP unix working. When we needed yet another segment
to map mbufs (which we could do on the 11/70), there just weren’t any
left. It was then that I scarfed up all the 11/23, 24, 34’s that were
available and turned them into routers.