On Jun 22, 2012, at 4:07 PM, Rob Jarratt wrote:
DDCMP over some kind of serial line? Would need appropriate hardware and
driver code to work against that.
DDCMP over sync, yes. But DDCMP also works on an async line, and that just requires protocol code that can talk to a raw mode TTY device. That would work for what I need -- I have async DDCMP on my PRO-380 running RSTS, and in fact it's a standard feature of some of the PDP11 DECnet products. (I'm not sure if it was ever official in DECnet/E, but the machinery is there in the latest versions of the kernel.)
paul
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
On Behalf Of Rob Jarratt
Sent: 22 June 2012 20:27
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] DECnet User Mode Router - Encapsulation Formats
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-
hecnet at Update.UU.SE]
On Behalf Of Dave McGuire
Sent: 22 June 2012 19:34
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] DECnet User Mode Router - Encapsulation Formats
On 06/22/2012 02:31 PM, Rob Jarratt wrote:
I am making a little progress on a user mode DECnet router that will
run on Raspberry Pi and on Windows. There is still a long way to go,
but I want to get the basic design right in terms on the network
interfacing.
Can someone tell me how Cisco and Multinet encapsulate DECnet
packets sent over the internet?
Ciscos can encapsulate DECnet within either GRE or L2TP.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
I hope GRE and L2TP aren't too complex. It *looks* like GRE can be
transported over UDP. L2TP looks a bit more complex, but I have skimmed
the Wikipedia page for all of 15 seconds so I may have missed something.
Regards
Rob
Sorry, just realised that is silly, if I am correct GRE is another protocol
type at the same level as UDP. I was confusing IP with UDP!
Regards
Rob
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
On Behalf Of Paul_Koning at Dell.com
Sent: 22 June 2012 20:37
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] DECnet User Mode Router - Encapsulation Formats
On Jun 22, 2012, at 3:28 PM, Rob Jarratt wrote:
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-
hecnet at Update.UU.SE]
On Behalf Of Paul_Koning at Dell.com
Sent: 22 June 2012 19:44
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] DECnet User Mode Router - Encapsulation Formats
Are you planning to have it speak unencapsulated, too? That would be
nice for talking to real DECnet nodes.
paul
On Jun 22, 2012, at 2:31 PM, Rob Jarratt wrote:
I am making a little progress on a user mode DECnet router that will
run
on
Raspberry Pi and on Windows. There is still a long way to go, but I
want
to
get the basic design right in terms on the network interfacing. Can
someone
tell me how Cisco and Multinet encapsulate DECnet packets sent over
the internet?
Thanks
Rob
Yes, that should be the simplest one. For that I am assuming that the
router would be connected directly to the Ethernet segment, not
missing anything am I?
Regards
Rob
Right, that's what I had in mind. An Ethernet segment with a PDP11 on it
along with your creation.
Extra credit would be support of point to point links... which I could
actually
use, since my current PDP11 speaks DDCMP but not yet Ethernet (no driver
for its NIC yet). That's off the wall enough that I wouldn't expect you
to do
it, but I would probably take it on as an additional feature.
paul
DDCMP over some kind of serial line? Would need appropriate hardware and
driver code to work against that.
Regards
Rob
On Jun 22, 2012, at 3:28 PM, Rob Jarratt wrote:
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
On Behalf Of Paul_Koning at Dell.com
Sent: 22 June 2012 19:44
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] DECnet User Mode Router - Encapsulation Formats
Are you planning to have it speak unencapsulated, too? That would be nice
for talking to real DECnet nodes.
paul
On Jun 22, 2012, at 2:31 PM, Rob Jarratt wrote:
I am making a little progress on a user mode DECnet router that will run
on
Raspberry Pi and on Windows. There is still a long way to go, but I want
to
get the basic design right in terms on the network interfacing. Can
someone
tell me how Cisco and Multinet encapsulate DECnet packets sent over the
internet?
Thanks
Rob
Yes, that should be the simplest one. For that I am assuming that the router
would be connected directly to the Ethernet segment, not missing anything am
I?
Regards
Rob
Right, that's what I had in mind. An Ethernet segment with a PDP11 on it along with your creation.
Extra credit would be support of point to point links... which I could actually use, since my current PDP11 speaks DDCMP but not yet Ethernet (no driver for its NIC yet). That's off the wall enough that I wouldn't expect you to do it, but I would probably take it on as an additional feature.
paul
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
On Behalf Of Paul_Koning at Dell.com
Sent: 22 June 2012 19:44
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] DECnet User Mode Router - Encapsulation Formats
Are you planning to have it speak unencapsulated, too? That would be nice
for talking to real DECnet nodes.
paul
On Jun 22, 2012, at 2:31 PM, Rob Jarratt wrote:
I am making a little progress on a user mode DECnet router that will run
on
Raspberry Pi and on Windows. There is still a long way to go, but I want
to
get the basic design right in terms on the network interfacing. Can
someone
tell me how Cisco and Multinet encapsulate DECnet packets sent over the
internet?
Thanks
Rob
Yes, that should be the simplest one. For that I am assuming that the router
would be connected directly to the Ethernet segment, not missing anything am
I?
Regards
Rob
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
On Behalf Of Dave McGuire
Sent: 22 June 2012 19:34
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] DECnet User Mode Router - Encapsulation Formats
On 06/22/2012 02:31 PM, Rob Jarratt wrote:
I am making a little progress on a user mode DECnet router that will
run on Raspberry Pi and on Windows. There is still a long way to go,
but I want to get the basic design right in terms on the network
interfacing.
Can someone tell me how Cisco and Multinet encapsulate DECnet packets
sent over the internet?
Ciscos can encapsulate DECnet within either GRE or L2TP.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
I hope GRE and L2TP aren't too complex. It *looks* like GRE can be
transported over UDP. L2TP looks a bit more complex, but I have skimmed the
Wikipedia page for all of 15 seconds so I may have missed something.
Regards
Rob
Are you planning to have it speak unencapsulated, too? That would be nice for talking to real DECnet nodes.
paul
On Jun 22, 2012, at 2:31 PM, Rob Jarratt wrote:
I am making a little progress on a user mode DECnet router that will run on Raspberry Pi and on Windows. There is still a long way to go, but I want to get the basic design right in terms on the network interfacing. Can someone tell me how Cisco and Multinet encapsulate DECnet packets sent over the internet?
Thanks
Rob
On 06/22/2012 02:31 PM, Rob Jarratt wrote:
I am making a little progress on a user mode DECnet router that will run
on Raspberry Pi and on Windows. There is still a long way to go, but I
want to get the basic design right in terms on the network interfacing.
Can someone tell me how Cisco and Multinet encapsulate DECnet packets
sent over the internet?
Ciscos can encapsulate DECnet within either GRE or L2TP.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
I am making a little progress on a user mode DECnet router that will run on Raspberry Pi and on Windows. There is still a long way to go, but I want to get the basic design right in terms on the network interfacing. Can someone tell me how Cisco and Multinet encapsulate DECnet packets sent over the internet?
Thanks
Rob
