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Re: Try again: IP between Pi <--> klh10 TOPS-20

From David Todd <hdtodd@gmail.com>
Newsgroups alt.sys.pdp10
Subject Re: Try again: IP between Pi <--> klh10 TOPS-20
Date 2026-01-03 17:07 -0500
Organization A noiseless patient Spider
Message-ID <d900ddf6-18b5-4521-91f8-a467b126f1b1@gmail.com> (permalink)
References (3 earlier) <87fr8qfsmp.fsf@atr2.ath.cx> <36bf44a9-b22b-4529-8b69-c3b5598f6a04@gmail.com> <87ldih48o8.fsf@atr2.ath.cx> <fc5af379-0925-4d89-b674-ea3da6ab3db1@gmail.com> <871pk6mxd0.fsf@atr2.ath.cx>

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On 1/3/26 12:15 PM, jayjwa wrote:
>> KLH10# devdef ni0 564 ni20 dedic=true ifmeth=tap ifc=tap0 decnet=true
> You might try the macvlan off the eth0 approach. Something like
> devdef ni0 564 ni20 dedic=true ifmeth=pcap ifc=macvlan0 decnet=true
> 
> My PyDECnet uses it and PyDECnet can see other (DECnet) nodes.
> # ip -c link add name macvlan0 link eth0 type macvlan
> # ip -c link set dev macvlan0 address AA:00:04:00:02:04
> # ip -c link set macvlan0 up
> circuit macvlan-0 Ethernet pcap:macvlan0 --mop
> 
> I never tried this way with KLH10 but it should send IP and DEC DNA as
> well. You might have to play with the config a bit.

I tried this and klh10/dpni20 rejects pcap; says it just takes
tun, tap, or tap+bridge.

I experimented with macvlan all morning, and I the result is similar
to the tap0 getting you tap1 and needing to bring it into the bridge
in real time.  The 'ip' command sets it up, but it doesn't get
instantiated until dpni20 starts it.  At least, that was my
experience this morning.

It did seem like a really clean way to set it up, though.  I'll try
it again, though, with your model.

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Thread

Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2025-12-29 18:31 -0500
  Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2025-12-30 12:54 -0500
    Re: Try again: IP between Pi <--> klh10 TOPS-20 Rich Alderson <news@alderson.users.panix.com> - 2025-12-30 20:43 -0500
      Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2025-12-31 12:50 -0500
        Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-01 09:59 -0500
          Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-01 11:08 -0500
            Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-01 11:27 -0500
              Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-02 13:04 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-02 17:36 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-03 05:37 +0000
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-03 07:09 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-03 08:40 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-03 11:33 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-03 06:59 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 09:07 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 09:20 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 Johnny Billquist <bqt@softjar.se> - 2026-01-04 16:26 +0100
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 10:57 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-05 06:38 +0000
            Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-02 07:46 -0500
              Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-02 12:54 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-02 17:05 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 Rich Alderson <news@alderson.users.panix.com> - 2026-01-02 20:32 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-02 22:21 -0500
            Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-02 17:47 -0500
              Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-03 12:15 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-03 16:57 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-03 17:00 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-04 11:21 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-05 17:52 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-05 18:13 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-06 12:53 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-06 18:12 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <HDTodd@gmail.com> - 2026-01-06 18:15 -0500
                MM vs. MS/MX [was Re: Try again: IP between Pi <--> klh10 TOPS-20] Rich Alderson <news@alderson.users.panix.com> - 2026-01-07 18:28 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-03 17:07 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-04 11:28 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 13:52 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-03 18:12 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 scott@slp53.sl.home (Scott Lurndal) - 2026-01-04 00:00 +0000
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 08:48 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 scott@slp53.sl.home (Scott Lurndal) - 2026-01-04 16:00 +0000
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 14:02 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-04 11:56 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 14:21 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-01-04 16:16 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 16:58 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 14:28 -0500
                Re: Try again: IP between Pi <--> klh10 TOPS-20 scott@slp53.sl.home (Scott Lurndal) - 2026-01-05 15:33 +0000
                Re: Try again: IP between Pi <--> klh10 TOPS-20 Andy Valencia <vandys@vsta.org> - 2026-01-05 15:45 -0800
                Re: Try again: IP between Pi <--> klh10 TOPS-20 David Todd <hdtodd@gmail.com> - 2026-01-04 08:59 -0500

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