[HECnet] Configuring py-decnet.

[David Moylan]

PyDECnet certainly does GRE. That's why we all love Paul's work so much. It contains support for GRE, Multinet and your bridge code all in the one product.
I was able to move from my old Cisco router across to PyDECnet and maintain all of my existing GRE tunnels with no reconfiguration.

>From what I interpret, Thord is running an emulated RSTS/E system on simh and wants to run PyDECnet on the same host to establish a connection upstream.

Thord - I have a similar setup, but I'm running VMS. Here's how I have it setup:

- my host running is Ubuntu 18.04.2
- physical Ethernet (it's called "ens160" because I run VMware)
- tap interfaces for each of my VMS simh machines
- a tap interface for PyDECnet
- I bring all of my tap interfaces and my physical ethernet together into a bridge interface
- the bridge interface has my IP address bound to it.

PyDECnet is setup with the first circuit connected to the tap adapter I reserved for PyDECnet above.
I then have circuit entries for each of the connections to the other area routers and end nodes I am connected to on HECnet.

I assume that you should be able to achieve the same with RSTS/E on simh.

Let me know if you want more specific details (and let me know what your OS version etc is). I can provide more granular configuration information on my setup which you should be able to use as a template for your own setup.

Cheers, Wiz!!

> -----Original Message-----
> From: owner-hecnet at Update.UU.SE [mailto:owner-
> hecnet at Update.UU.SE] On Behalf Of Johnny Billquist
> Sent: Saturday, 22 August 2020 9:27 PM
> To: hecnet at Update.UU.SE
> Subject: Re: [HECnet] Configuring py-decnet.
> 
> Indeed I did. I must admit that the picture is unclear. If we're talking
> GRE using pydecnet (does it do GRE?), then why the ethernet jump between
> pydecnet and GRE? There do need to some something between the
> ethernet
> and GRE tunnel. My assumption was probably premature.
> 
>    Johnny
> 
> On 2020-08-22 13:23, David Moylan wrote:
> > I think you assumed he has a Cisco router :-)
> >
> >
> >> -----Original Message-----
> >> From: owner-hecnet at Update.UU.SE [mailto:owner-
> >> hecnet at Update.UU.SE] On Behalf Of Johnny Billquist
> >> Sent: Saturday, 22 August 2020 9:22 PM
> >> To: hecnet at Update.UU.SE
> >> Subject: Re: [HECnet] Configuring py-decnet.
> >>
> >> Hi, Thord.
> >>
> >> The RSX manuals are probably partially usable, but there are certainly
> >> some significant differences in how this works in RSX and RSTS/E as well.
> >> I noticed that you have phase III manuals for RSTS/E V7 on bitsavers.
> >> They might be partially helpful as well? (I suspect you already know
> these.)
> >>
> >> About your setup. Not sure why you have pydecnet there between the
> >> virtual tap ethernet and real ethernet. Is it implicit that you have two
> >> pydecnet instances in there, with some distance between them? Because
> >> from the delqa you can get to the physical ethernet, and if your Cisco
> >> is on that same ethernet, then I'd say pydecnet is not needed.
> >>
> >>     Johnny
> >>
> >>
> >>
> >>
> >> On 2020-08-22 12:29, Thord Nilson wrote:
> >>> Hello all!
> >>> I am trying to test up decnet iv on a rsts/e 10.1 system on simh and
> >>> hopefully connect to hecnet. Currently borrowing a node name/number
> >> from
> >>> Peter L.
> >>>
> >>> Is the following setup workable/suitable?
> >>>
> >>> rsts/e --> delqua --> virtual tap ethernet --> pydecnet -->
> >>> real-ethernet --> GRE tunnel.
> >>>
> >>> Anyone who has done this and willing to share the setup used?
> >>> Or any good links?
> >>>
> >>> I have not found a decnet-iv manual for rsts/e online, but maybe the rsx
> >>> manuals are usable. Anyone know?
> >>>
> >>> Best regards,
> >>> Thord.
> >>>
> >>>
> >>>
> >>
> >> --
> >> Johnny Billquist                  || "I'm on a bus
> >>                                     ||  on a psychedelic trip
> >> email: bqt at softjar.se             ||  Reading murder books
> >> pdp is alive!                     ||  tryin' to stay hip" - B. Idol
> 
> --
> Johnny Billquist                  || "I'm on a bus
>                                    ||  on a psychedelic trip
> email: bqt at softjar.se             ||  Reading murder books
> pdp is alive!                     ||  tryin' to stay hip" - B. Idol