On 2017-05-20 20:18, Warner Losh wrote:

On Sat, May 20, 2017 at 4:46 AM, Johnny Billquist <bqt@update.uu.se
<mailto:bqt@update.uu.se>> wrote:

    On 2017-05-20 04:00, Warner Losh <imp@bsdimp.com
    <mailto:imp@bsdimp.com>> wrote:

        https://ia601901.us.archive.org/10/items/bitsavers_decpdp11ulLTRIX112.0SPDSep84_870730/AE-X370C-TC_ULTRIX-11_2.0SPD_Sep84.pdf
        <https://ia601901.us.archive.org/10/items/bitsavers_decpdp11ulLTRIX112.0SPDSep84_870730/AE-X370C-TC_ULTRIX-11_2.0SPD_Sep84.pdf>

        Looks like it requires MMU, but not split I/D space as it lists the
        following as compatible: M11, 11/23+, 11/24, 11/34, 11/40 and
        11/60. It
        does require 256kb of memory. See table 2, page 6 for details.



    Uh...? Where do you see that there is any TCP/IP support in
    Ultrix-11? If any was done by someone else, there is no saying that
    it would be usable on a machine without split I/D. To be honest,
    I've never seen any mention of TCP/IP on any machine without split
    I/D space. I guess it could be done, but it would be a rather big
    headache...


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).

You do know that the Rainbow is not a PDP-11, right?