[HECnet] Attaching to hecnet

hvlems at zonnet.nl hvlems at zonnet.nl
Sun Jul 4 11:20:29 PDT 2010


Thank you for clarifying that detail. I wrote earlier that I ccouldn't find a manual for the program. Possibly the code is clear enough but I don't believe that source text is a replacement for a manual. Hans

Citeren Sampsa Laine <sampsa at mac.com>:

You don't need your own port, I run mine on 4711 and it works fine -   the key thing is that the other end knows where you are, i.e. address   and port..

The port is passed as the command line parameter to the bridge   program, e.g.:

	./bridge 4711

runs it on the standard port.

Sampsa





On 1 Jul 2010, at 21:10, H Vlems wrote:

OK, I understand that part (I think) of the bridge program.
I wasn't aware that I'd need my own port number. I'll opt for 4744,   if that
is alright.
Do I need to configure this somewhere (like in the .conf file)?
Hans

PS
My apologies for all these questions but I haven't seen a manual   about the
bridge program....


-----Oorspronkelijk bericht-----
Van: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]   Namens
Johnny Billquist
Verzonden: donderdag, juli 2010 15:45
Aan: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Attaching to hecnet

Hi.

H Vlems wrote:
OK, let's try the bridge option first. Could you give me a   sample .conf
file
that I can use?

Hmm. Not one that you can use straight away, no.

However, it should look something like this:
================
[bridge]
local <your ethernet interface name>
update psilo.update.uu.se:4711
[decnet]
local
update
=================

And that's it. What your local ethernet name is, I have no idea.

My external IP address is:

Name:       osmium.homeip.net
Address:   87.209.50.192

That is something I need for my side of the bridge. In addition, I   also
need to know what port number you will be using.

I assume that a NAT entry is needed on my ADSL router, right? Would   that
be
for port 4711 (as in eau de cologne ??)

Yes, 4711 is named after the water from Cologne. :-)
(Very oldish hacker folklore that I suspect people nowadays might not
know...)

And yes, if you have NAT running, you will need to forward traffic
between your box, at whatever port you are using, and
psilo.update.uu.se:4711. And this is UDP traffic.

	Johnny

Hans

-----Oorspronkelijk bericht-----
Van: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]   Namens
Johnny Billquist
Verzonden: woensdag, juni 2010 14:16
Aan: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Attaching to hecnet

Hi, Hans.

H Vlems wrote:
OK Johnny, talk to me :-)
This is my plan: I intend to modify two systems to try the   connection to
HECnet.
1) I have a linux system under Fedora 9 that will run the bridge   software
and an Alpha Server 1200 under VMS V8.3 and DECnet phase IV, address
1.1010.

That should work without any strange problems. You'll probably want   to
connect the bridge to me in that case. Let me know when you are   ready to
try.

2) a VAXstation 4000 model 90A, running VMS V7.3 and DECnet phase   V, in
area
44.
I'd like to try that connection without the linux system.

You need to find someone who can act as the other end in this case.
Which I suspect meaning someone running phase V and as an area   router. I
don't know who might be doing this. Maybe someone who do can speak   up.

Anyone know if this would be compatible with DECnet over IP as   Multinet
does it?

Option 2 is my preferred situation since it removes a by and large
unknown
factor from the equation (the linux box).

Sure. We just need to identify someone you can connect to.

So, what do I need to know and to do to make this work?

Someone to connect to...

	Johnny

Hans

-----Oorspronkelijk bericht-----
Van: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]   Namens
Johnny Billquist
Verzonden: maandag, juni 2010 21:03
Aan: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Attaching to hecnet

H Vlems wrote:
What I meant with the phase III-IV-V answer is that direct   connectivity
between a phase V and phase III system won't work. But poor man's
routing
will work with a phase IV node in between. Functionality of   course is
limited by the phase III host :-)
I wonder if phase III to phase V neccesarily will not work.   However, DEC
never guaranteed that it will work, nor did they ever try it.

But you're absolutely right that very few people will have a   phase III
system, RT-11 being the most likely candidate?
Probably. Or if someone is running some old versions of other   systems.

I've seen the bridge program, but am not sure how to make   the .conf file
work. Is it possible to use DECnet address 1.1010 to try and make   this
work?

Yes. 1.1010 is not used by anyone, so that node number would be ok   to
use to test.
But you also need to talk with me (or someone else) with the bridge
running, to act as the remote end.

	Johnny

Hans

-----Oorspronkelijk bericht-----
Van: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]   Namens
Johnny Billquist
Verzonden: maandag, juni 2010 11:02
Aan: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Attaching to hecnet

Hi.

H Vlems wrote:
DECnet phase IV nodes are backwards compatible with phase III.
Yes. But the question here was if phase V will interoperate with   phase
III. I don't know the answer to that one, but on the other hand,   I don't

think anyone around is running phase III anyway.

There are no restrictions in functionality between phase IV   nodes and
phase
V as seen by the unpriviledged user. Area routing may be an   issue on
Alpha,
and of course ncl is more of a pain to remember than ncp ;-)
True, as far as that goes.
However, I am not sure that a phase V node can operate as a phase   IV
area router.

Someone else pointed out that although DEC claimed that alphas   could not

be area routers, that information is incorrect, and you can just   tell an

Alpha VMS phase IV node to be an area router, if you want to.

However, DECnet+ is phase V, and all bets are off. :-)

And yes, not only are the NCL commands more difficult to remember
(atleast for me), the node name management is way more difficult as
well. Do anyone know how you copy a nodename database from another
machine with DECnet+?

Two questions:
1-May I use area 44?
Sure.

2-Is there a short guide to set up DECnet over IP to connect to   HECnet?
Not that I know of. Maybe Mark Wickens have something on hecnet.eu?
My page (http://www.update.uu.se/~bqt/hecnet.html) only have   information

about the bridge.

	Johnny

Hans
-----Oorspronkelijk bericht-----
Van: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
Namens
Marc Chametzky
Verzonden: maandag, juni 2010 0:04
Aan: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Attaching to hecnet

DECnet-Plus isn't
able to connect, or at least reliably connect to all OS's that   can
potentially be on HECnet. I forget what all OS's I was having   issues
with, I know one was RSTS/E v10.1, but I want to say it also   included
VAX/VMS. Once I *upgraded* my Alpha running OpenVMS to DECnet   Phase
IV,
all these issues went away. These were things as simple as SET   HOST.
It's probably that DECnet-Plus (Phase V) cannot speak with   DECnet Phase

III (such as on RSTS/E and TOPS-10/20). That's my guess anyway.

Phase V should be able to communicate with VAX/VMS since that's   Phase
IV, which is the gold standard of DECnet, IMHO.

--Marc
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