mån 2018-02-05 klockan 10:31 -0700 skrev Grant Taylor via cctalk:
> On 01/18/2018 12:23 PM, Dennis Boone via cctalk wrote:
> > You all talk about Proxy ARP in the past tense for some reason. :)
>
> You might find it entertaining to know that I was just talking with
> colleagues that are currently
On 01/18/2018 12:23 PM, Dennis Boone via cctalk wrote:
You all talk about Proxy ARP in the past tense for some reason. :)
You might find it entertaining to know that I was just talking with
colleagues that are currently using Proxy ARP to solve the lack of
subnet problem at 40 Gbps line rate.
On 01/19/2018 01:25 AM, Christian Corti via cctalk wrote:
Why do you want to convert between the two frame types? They can happily
coexist on the same segment. In fact I'm using this setup on some Linux
servers that provide both ordinary IP services (like NFS) and Novell
shares (using Mars NWE)
On Thu, 18 Jan 2018, Grant Taylor wrote:
I'm wondering if it might be possible to use an old NetWare 4.x / 5.x box as
a router to convert from one Ethernet frame type to another Ethernet frame
type. I.e. from IP over Ethernet II frames to IP over 802.3 frames.
Why do you want to convert betwe
> On Jan 18, 2018, at 9:39, Grant Taylor via cctalk
> wrote:
>
> On 01/17/2018 11:33 AM, Noel Chiappa via cctalk wrote:
>> E.g. it probably only supports class A addresses, for instance, which is
>> going to influence the code for picking the first-hop router.
>
> I was not aware that there wa
> On Jan 18, 2018, at 9:27, Grant Taylor via cctalk
> wrote:
>
> On 01/17/2018 01:12 PM, Frank McConnell via cctalk wrote:
>> So here's a real example: I have an HP 3000 Micro GX with MPE G.A3.09
>> (V-delta-9) which is very 1990. And it has a LANIC, and V-delta-9 is late
>> enough for it to
On 01/18/2018 12:53 PM, Eric Smith via cctalk wrote:
Proxy ARP is (or was, at the time) something that had to be configured
for individual IP addresses or ranges. What I did was have it reply to an
ARP for any IP address outside the subnet(s) configured on that interface.
Intriguing.
I guess
On Thu, Jan 18, 2018 at 11:35 AM, Grant Taylor via cctalk <
cctalk@classiccmp.org> wrote:
> On 01/18/2018 11:00 AM, Eric Smith wrote:
>
>> Years ago I added a configurable "bozo-arp" feature to the Telebit
>> NetBlazer router, which would respond to ARP requests for non-local
>> addresses and repl
On 01/18/2018 12:23 PM, Dennis Boone via cctalk wrote:
You all talk about Proxy ARP in the past tense for some reason. :)
Please don't interpret the fact that I am inadvertently talking about
Proxy ARP in the past tense to mean anything.
I personally started solving the problem that Proxy AR
Noel wrote:
> but I dunno how one would hook _that_ simulation up to a simulated host
> running a simulated ARPANET interface.
It would seem silly to simulate a bit by bit interface, so just come
up with an encapsulation of 1822 messages in TCP?
Two-octet count(*), plus 1822 leaders .
(*) an
On Thu, Jan 18, 2018 at 10:27 AM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> > From: Grant Taylor
>
>
> The ARPANET supported several different kinds of interfaces between the
> IMPs
> (the switching nodes in the ARPANET) and hosts, but the 'usual' one was
> either 'Local Host'
> > which would respond to ARP requests for non-local addresses and
> > reply with the router's MAC address (on that interface),
> > specifically in order to make classful-only hosts work on a
> > CIDR network.
> Yeah, Proxy ARP (an early RFC here:
You all talk about Proxy AR
> From: Eric Smith
> which would respond to ARP requests for non-local addresses and reply
> with the router's MAC address (on that interface), specifically in
> order to make classful-only hosts work on a CIDR network.
Yeah, Proxy ARP (an early RFC here:
https://www.rfc-editor
Grant Taylor wrote:
> Do the necessary emulators support the ARPANET interface?
Ken Harrenstien's PDP-10 emulator does. ITS uses the IMP interface for
TCP/IP to this day.
On Thu, Jan 18, 2018 at 11:27 AM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
>
> Easier, to get this old TCP/IP running, might be to write a Unix V6 driver
> for
> an Ethernet card (one the simulators do support - I know Ersatz-11 does the
> Interlan NI1010A/2010A, which is nice and si
On 01/18/2018 11:00 AM, Eric Smith wrote:
Years ago I added a configurable "bozo-arp" feature to the Telebit
NetBlazer router, which would respond to ARP requests for non-local
addresses and reply with the router's MAC address (on that interface),
specifically in order to make classful-only hos
> From: Grant Taylor
>> It is TCP/IPv4, so it's got compatible headers
> Are you referring to the 802.3 Ethernet (vs Ethernet II) frame type
No, I meant the IP and TCP headers. Those are end-end; the Ethernet stuff is
just a local wrapping, and can be substituted.
> I was not aw
On 01/18/2018 10:53 AM, Peter Coghlan via cctalk wrote:
I thought that what Novell refers to as "IEEE 802.3 raw" was an early day
foulup on their part where they put IPX data directly into IEEE 802.3
frames with nothing to indicate what protocol was being transported.
That's my understanding a
Here's a link with a lot of gory details on NetWare's support of
multiple Ethernet frame types.
Link - Migrating Ethernet Frame Types from 802.3 Raw to IEEE 802.2
- https://support.novell.com/techcenter/articles/ana19930905.html
Here are the four frame types that NetWare supports:
- Ethe
> On Jan 18, 2018, at 12:27 PM, Grant Taylor via cctalk
> wrote:
>
> On 01/17/2018 01:12 PM, Frank McConnell via cctalk wrote:
> ...
>> So you might think I'd be able to move files between it and a modern FreeBSD
>> box, right? I mean, it's all just Ethernet, right?
>
> Ethernet != Ethernet
On Thu, Jan 18, 2018 at 10:39 AM, Grant Taylor via cctalk <
cctalk@classiccmp.org> wrote:
> I was not aware that there was code that supported /only/ Class A (/8)
> addresses and /not/ Class B (/16) or Class C (/24) addresses.
>
> I /thought/ that everything was either classful (as in supports all
On 01/17/2018 11:33 AM, Noel Chiappa via cctalk wrote:
This just a guess, but 'sort of'? It is TCP/IPv4, so it's got compatible
headers, but I don't know if other parts have changed enough to make it
not work.
Are you referring to the 802.3 Ethernet (vs Ethernet II) frame type that
Frank ment
On 01/17/2018 01:12 PM, Frank McConnell via cctalk wrote:
So here's a real example: I have an HP 3000 Micro GX with MPE G.A3.09
(V-delta-9) which is very 1990. And it has a LANIC, and V-delta-9 is
late enough for it to be able to do IP over Ethernet (vs. V-delta-4 and
before which could only d
On Wed, Jan 17, 2018 at 1:12 PM, Frank McConnell via cctalk <
cctalk@classiccmp.org> wrote:
> > On Jan 17, 2018, at 10:18, Warner Losh via cctalk
> wrote:
> >
> > On Wed, Jan 17, 2018 at 5:40 AM, Noel Chiappa via cctalk <
> > cctalk@classiccmp.org> wrote:
> >
> >> http://minnie.tuhs.org/cgi-bin/
> On Jan 17, 2018, at 10:18, Warner Losh via cctalk
> wrote:
>
> On Wed, Jan 17, 2018 at 5:40 AM, Noel Chiappa via cctalk <
> cctalk@classiccmp.org> wrote:
>
>> http://minnie.tuhs.org/cgi-bin/utree.pl?file=BBN-V6
>>
>> (The latter includes NCP as well as TCP/IP.)
>>
>
> I'm curious: does it
On Wed, Jan 17, 2018 at 10:16 AM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> > From: Charles Anthony
>
> > it was shipped has an "unbundled" product.
>
> Ah. I assumed that what had happened was that the set of source files at
> MIT
> was just what was in the 'last release',
> From: Warner Losh
> I'm curious: does it inter-operate with modern TCP/IP implementations?
This just a guess, but 'sort of'? It _is_ TCP/IPv4, so it's got compatible
headers, but I don't know if other parts have changed enough to make it not
work.
E.g. it probably only supports class A
On Wed, Jan 17, 2018 at 5:40 AM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> http://minnie.tuhs.org/cgi-bin/utree.pl?file=BBN-V6
>
> (The latter includes NCP as well as TCP/IP.)
>
I'm curious: does it inter-operate with modern TCP/IP implementations?
Warner
> From: Charles Anthony
> it was shipped has an "unbundled" product.
Ah. I assumed that what had happened was that the set of source files at MIT
was just what was in the 'last release', and the NCP code had been discarded
by then.
I wonder if it's on a backup tape that MIT retained, som
On Wed, Jan 17, 2018 at 4:40 AM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> > From: Lars Brinkhoff
>
> > - Multics NCP has not been located.
>
> Really? It wasn't in the code dump at MIT?
>
>
Nope; it was shipped has an "unbundled" product.
-- Charles
Noel Chiappa wrote:
>> - Multics NCP has not been located.
> Really? It wasn't in the code dump at MIT?
I asked my Multics guy about it, and he said it was missing. I don't
know about the code dump.
> I'm not sure a VMS machine was ever on the NCP ARPANet? So maybe they
> were front-ended someho
On Wed, Jan 17, 2018 at 7:50 AM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> > From: Phil Budne
>
> > I asked around for v6 Unix with "NCP" code when the IMP code was
> > resurected, but never found it
>
> Yeah, that one was retrieved only recently, when Chuck managed
> From: Phil Budne
> I asked around for v6 Unix with "NCP" code when the IMP code was
> resurected, but never found it
Yeah, that one was retrieved only recently, when Chuck managed to read an old
dump tape I had of the MIT-CSR PWB1 Unix PDP-11. We didn't run NCP on that
machine,
> From: Lars Brinkhoff
> - Multics NCP has not been located.
Really? It wasn't in the code dump at MIT?
> - Unix?
For V6 NCP, we have several versions:
http://minnie.tuhs.org/cgi-bin/utree.pl?file=SRI-NOSC
http://minnie.tuhs.org/cgi-bin/utree.pl?file=BBN-V6
(The latter include
> - Unix?
I asked around for v6 Unix with "NCP" code when the IMP code was
resurected, but never found it
Hello,
What software, hardware, simulators, emulators, etc are there that could
run ARPAnet today?
- ITS has support for NCP, but I don't know if it works.
- There's source code for the IMP.
- TENEX seems ok at a quick glance.
- WAITS, likewise.
- Multics NCP has not been located.
- Unix?
- IBM m
36 matches
Mail list logo
