10 Oct
2019
10 Oct
'19
5:59 p.m.
Hi,
Ok, so I've noticed... and I'm curious about DECnet/Python. Are there any
details?
Keith
10 Oct
10 Oct
6:24 p.m.
There are some, yes. You can find the code and documentation -- admittedly somewhat brief
-- on my Subversion server at svn://akdesign.dyndns.org/pydecnet/trunk/pydecnet
<svn://akdesign.dyndns.org/pydecnet/trunk/pydecnet> .
Very briefly, it's a DECnet implementation implemented entirely in Python 3, the full
stack (including some applications). Phase IV, but unlike others it will talk to Phase II
nodes. For that matter, it can be run as a Phase III or Phase II node if you like.
There currently isn't a formal kit; you can install it from the Subversion working
directory, or run it directly in there if you like. See doc/*.txt for details.
Feel free to email me with questions, and of course any bug reports.
paul
On Oct 10, 2019, at 11:59 AM, Keith Halewood
<Keith.Halewood at pitbulluk.org> wrote:
Hi,
Ok, so I?ve noticed? and I?m curious about DECnet/Python. Are there any details?
Keith
7:24 p.m.
Hi Paul,
Thanks for making this available. It looks fantastic. I?ll have a go at setting up a
node.
Regards,
Keith
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Paul
Koning
Sent: 10 October 2019 17:25
To: hecnet at update.uu.se
Subject: Re: [HECnet] Curious about DECnet/Python
There are some, yes. You can find the code and documentation -- admittedly somewhat brief
-- on my Subversion server at svn://akdesign.dyndns.org/pydecnet/trunk/pydecnet .
Very briefly, it's a DECnet implementation implemented entirely in Python 3, the full
stack (including some applications). Phase IV, but unlike others it will talk to Phase II
nodes. For that matter, it can be run as a Phase III or Phase II node if you like.
There currently isn't a formal kit; you can install it from the Subversion working
directory, or run it directly in there if you like. See doc/*.txt for details.
Feel free to email me with questions, and of course any bug reports.
paul
On Oct 10, 2019, at 11:59 AM, Keith Halewood <Keith.Halewood at
pitbulluk.org<mailto:Keith.Halewood at pitbulluk.org>> wrote:
Hi,
Ok, so I?ve noticed? and I?m curious about DECnet/Python. Are there any details?
Keith
11 Oct
11 Oct
12:20 p.m.
Some late night replacements and I?ve converted the TAP handling to use the /dev/net/tun
arrangement of the tap/tun facilities of raspbian (buster).
So if you have an arrangement such as this in /etc/network/interfaces:
auto lo tap1 tap2 br0
iface lo inet loopback
iface eth0 inet manual
iface tap1 inet manual
pre-up ip tuntap add tap1 mode tap user simh
iface tap2 inet manual
pre-up ip tuntap add tap2 mode tap user simh
iface br0 inet static
bridge_ports eth0 tap1 tap2
bridge_fd 0
address ??
netmask ??.
gateway ??.
Then the pydecnet config line:
circuit tap-0 Ethernet tap:tap1 --random-address
will connect.
I?ll do some more testing.
Keith
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of
Keith Halewood
Sent: 10 October 2019 18:24
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] Curious about DECnet/Python
Hi Paul,
Thanks for making this available. It looks fantastic. I?ll have a go at setting up a
node.
Regards,
Keith
From: owner-hecnet at Update.UU.SE<mailto:owner-hecnet at Update.UU.SE>
[mailto:owner-hecnet at Update.UU.SE] On Behalf Of Paul Koning
Sent: 10 October 2019 17:25
To: hecnet at update.uu.se<mailto:hecnet at update.uu.se>
Subject: Re: [HECnet] Curious about DECnet/Python
There are some, yes. You can find the code and documentation -- admittedly somewhat brief
-- on my Subversion server at svn://akdesign.dyndns.org/pydecnet/trunk/pydecnet .
Very briefly, it's a DECnet implementation implemented entirely in Python 3, the full
stack (including some applications). Phase IV, but unlike others it will talk to Phase II
nodes. For that matter, it can be run as a Phase III or Phase II node if you like.
There currently isn't a formal kit; you can install it from the Subversion working
directory, or run it directly in there if you like. See doc/*.txt for details.
Feel free to email me with questions, and of course any bug reports.
paul
On Oct 10, 2019, at 11:59 AM, Keith Halewood <Keith.Halewood at
pitbulluk.org<mailto:Keith.Halewood at pitbulluk.org>> wrote:
Hi,
Ok, so I?ve noticed? and I?m curious about DECnet/Python. Are there any details?
Keith
14 Oct
14 Oct
2:53 p.m.
So I?m keen to know ? what changes did you make?
I?m running a test box under Ubuntu 18 which is very similar to Debian Buster. When I use
pydecnet with a line such as:
circuit tap-0 Ethernet tap:tap1022 --random-address
pydecnet complains that it can?t find the device. Apart from /dev/net/tun I can?t find any
suitable reference for pydecnet to connect to.
Was this major code lifting? Or some small subtle changes?
Very interested to see what you?ve done.
Cheers, Wiz!!
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of
Keith Halewood
Sent: Friday, 11 October 2019 9:20 PM
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] Curious about DECnet/Python
Some late night replacements and I?ve converted the TAP handling to use the /dev/net/tun
arrangement of the tap/tun facilities of raspbian (buster).
So if you have an arrangement such as this in /etc/network/interfaces:
auto lo tap1 tap2 br0
iface lo inet loopback
iface eth0 inet manual
iface tap1 inet manual
pre-up ip tuntap add tap1 mode tap user simh
iface tap2 inet manual
pre-up ip tuntap add tap2 mode tap user simh
iface br0 inet static
bridge_ports eth0 tap1 tap2
bridge_fd 0
address ??
netmask ??.
gateway ??.
Then the pydecnet config line:
circuit tap-0 Ethernet tap:tap1 --random-address
will connect.
I?ll do some more testing.
Keith
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of
Keith Halewood
Sent: 10 October 2019 18:24
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] Curious about DECnet/Python
Hi Paul,
Thanks for making this available. It looks fantastic. I?ll have a go at setting up a
node.
Regards,
Keith
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Paul
Koning
Sent: 10 October 2019 17:25
To: hecnet at update.uu.se
Subject: Re: [HECnet] Curious about DECnet/Python
There are some, yes. You can find the code and documentation -- admittedly somewhat brief
-- on my Subversion server at svn://akdesign.dyndns.org/pydecnet/trunk/pydecnet .
Very briefly, it's a DECnet implementation implemented entirely in Python 3, the full
stack (including some applications). Phase IV, but unlike others it will talk to Phase II
nodes. For that matter, it can be run as a Phase III or Phase II node if you like.
There currently isn't a formal kit; you can install it from the Subversion working
directory, or run it directly in there if you like. See doc/*.txt for details.
Feel free to email me with questions, and of course any bug reports.
paul
On Oct 10, 2019, at 11:59 AM, Keith Halewood <Keith.Halewood at pitbulluk.org>
wrote:
Hi,
Ok, so I?ve noticed? and I?m curious about DECnet/Python. Are there any details?
Keith
9:26 p.m.
Remember that TUN and TAP are two different facilities. I have TAP support (which
admittedly hasn't been tried in a while), but never did TUN support.
Keith mentioned (offline) a short change to add it; I'll look into adding TUN as a
separate option.
Meanwhile, if you want to talk to an actual Ethernet interface, you might try the
"pcap" option. I've used that recently with good results.
paul
On Oct 14, 2019, at 8:53 AM, David Moylan <djm at
wiz.net.au> wrote:
So I?m keen to know ? what changes did you make?
I?m running a test box under Ubuntu 18 which is very similar to Debian Buster. When I use
pydecnet with a line such as:
circuit tap-0 Ethernet tap:tap1022 --random-address
pydecnet complains that it can?t find the device. Apart from /dev/net/tun I can?t find
any suitable reference for pydecnet to connect to.
Was this major code lifting? Or some small subtle changes?
Very interested to see what you?ve done.
Cheers, Wiz!!
9:37 p.m.
Hi Paul.
I added a change to make TAP work under Linux involving ?cloning? /dev/net/tun? and
setting an interface name in TAP mode.
Keith
On 14 Oct 2019, at 20:28, Paul Koning <paulkoning at comcast.net> wrote:
? Remember that TUN and TAP are two different facilities. I have TAP support (which
admittedly hasn't been tried in a while), but never did TUN support.
Keith mentioned (offline) a short change to add it; I'll look into adding TUN as a
separate option.
Meanwhile, if you want to talk to an actual Ethernet interface, you might try the
"pcap" option. I've used that recently with good results.
paul
On Oct 14, 2019, at 8:53 AM, David Moylan <djm at wiz.net.au<mailto:djm at
wiz.net.au>> wrote:
So I?m keen to know ? what changes did you make?
I?m running a test box under Ubuntu 18 which is very similar to Debian Buster. When I use
pydecnet with a line such as:
circuit tap-0 Ethernet tap:tap1022 --random-address
pydecnet complains that it can?t find the device. Apart from /dev/net/tun I can?t find any
suitable reference for pydecnet to connect to.
Was this major code lifting? Or some small subtle changes?
Very interested to see what you?ve done.
Cheers, Wiz!!
9:47 p.m.
All 6 of my DECnet/Python nodes (currently 5 x Linux/i686, 1 x Linux IBM s390x, 1 x
ARM/Raspbian) run with pcap on VDE2 switch ports. I run them as root, have to investigate
if capability settings allow them to work from non-privileged accounts.
DECnet/Python is so awesome - MULTINET, GRE, ethernet, Johnny's bridge, even SIMH
internal protocol - all in one Python program - amazing!
Supratim
---
Supratim Sanyal, W1XMT
39.19151 N, 77.23432 W
QCOCAL::SANYAL via HECnet
On Oct 14, 2019, at 3:26 PM, Paul Koning
<paulkoning at comcast.net> wrote:
Remember that TUN and TAP are two different facilities. I have TAP support (which
admittedly hasn't been tried in a while), but never did TUN support.
Keith mentioned (offline) a short change to add it; I'll look into adding TUN as a
separate option.
Meanwhile, if you want to talk to an actual Ethernet interface, you might try the
"pcap" option. I've used that recently with good results.
paul
> On Oct 14, 2019, at 8:53 AM, David Moylan <djm at wiz.net.au> wrote:
>
> So I?m keen to know ? what changes did you make?
>
> I?m running a test box under Ubuntu 18 which is very similar to Debian Buster. When I
use pydecnet with a line such as:
> circuit tap-0 Ethernet tap:tap1022 --random-address
>
> pydecnet complains that it can?t find the device. Apart from /dev/net/tun I can?t
find any suitable reference for pydecnet to connect to.
>
> Was this major code lifting? Or some small subtle changes?
>
> Very interested to see what you?ve done.
>
> Cheers, Wiz!!
>
13 Oct
13 Oct
7:09 p.m.
I'm going to have to try to get this up on a pair of my rack units.
Blackfin (Ubuntu 16.04.6 LTS), if I can get it running, will also be
called INKY::
And if I get it working, Bigeye (Ubuntu 16.04.6 LTS) will be BLINKY::
On 10/10/2019, Paul Koning <paulkoning at comcast.net> wrote:
Very briefly, it's a DECnet implementation
implemented entirely in Python 3,
the full stack (including some applications). Phase IV, but unlike others
it will talk to Phase II nodes. For that matter, it can be run as a Phase
III or Phase II node if you like.
There currently isn't a formal kit; you can install it from the Subversion
working directory, or run it directly in there if you like. See doc/*.txt
for details.
--
Tony Blews
tonyblews at gmail.com http://www.tonyblews.co.uk/
Mob: +44(0)7832 237251 Twit: @tonyblews
11:03 p.m.
I?ve got it running on a raspberry pi 4 as HECnet node 29.1 with point to point multinet
links to the outside world, TAP interface to the mixed real/in memory Ethernet and a
bridge interface to a SIMH 3.9+blinken instance behind a PiDP11.
It?s a great piece of work Paul has done and I?m extremely grateful he?s made it
available.
Keith
On 13 Oct 2019, at 18:10, Tony Blews <tonyblews at
gmail.com> wrote:
?I'm going to have to try to get this up on a pair of my rack units.
Blackfin (Ubuntu 16.04.6 LTS), if I can get it running, will also be
called INKY::
And if I get it working, Bigeye (Ubuntu 16.04.6 LTS) will be BLINKY::
On 10/10/2019, Paul Koning <paulkoning at
comcast.net> wrote:
Very briefly, it's a DECnet implementation implemented entirely in Python 3,
the full stack (including some applications). Phase IV, but unlike others
it will talk to Phase II nodes. For that matter, it can be run as a Phase
III or Phase II node if you like.
There currently isn't a formal kit; you can install it from the Subversion
working directory, or run it directly in there if you like. See doc/*.txt
for details.
--
Tony Blews
tonyblews at gmail.com http://www.tonyblews.co.uk/
Mob: +44(0)7832 237251 Twit: @tonyblews
11:39 p.m.
On 10/13/2019 05:03 PM, Keith Halewood wrote:
I?ve got it running on a raspberry pi 4 as HECnet node
29.1 with point to point multinet links to the outside world, TAP interface to the mixed
real/in memory Ethernet and a bridge interface to a SIMH 3.9+blinken instance behind a
PiDP11.
As you know, it also makes Cisco-style GRE tunnels trivial. If you wish,
you can have a GRE tunnel to IMPRTR
(http://sanyalnet-cloud-vps3.freeddns.org/routing/internals%3Fsystem=IMPRTR.…).
Supratim
It?s a great piece of work Paul has done and I?m
extremely grateful he?s made it available.
Keith
> On 13 Oct 2019, at 18:10, Tony Blews <tonyblews at gmail.com> wrote:
>
> ?I'm going to have to try to get this up on a pair of my rack units.
> Blackfin (Ubuntu 16.04.6 LTS), if I can get it running, will also be
> called INKY::
> And if I get it working, Bigeye (Ubuntu 16.04.6 LTS) will be BLINKY::
>
>
>
>> On 10/10/2019, Paul Koning <paulkoning at comcast.net> wrote:
>> Very briefly, it's a DECnet implementation implemented entirely in Python 3,
>> the full stack (including some applications). Phase IV, but unlike others
>> it will talk to Phase II nodes. For that matter, it can be run as a Phase
>> III or Phase II node if you like.
>>
>> There currently isn't a formal kit; you can install it from the Subversion
>> working directory, or run it directly in there if you like. See doc/*.txt
>> for details.
>
> --
>
> Tony Blews
> tonyblews at gmail.com http://www.tonyblews.co.uk/
> Mob: +44(0)7832 237251 Twit: @tonyblews
--
Sent via Thunderbird/MX-Linux on an overheated Compaq Presario CQ61
1865
days inactive
1869
days old
10 comments
5 participants
participants (5)
-
djm＠wiz.net.au -
Keith.Halewood＠pitbulluk.org -
paulkoning＠comcast.net -
supratim＠riseup.net -
tonyblews＠gmail.com