[ih] Fwd: Question - reference source for formal decommissioning of ARPANET in 1990?

[vinton cerf]

NSA had an NCP* (modified NCP) for quite a while although they were also
involved during the evolution of the TCP/IP suite.
v


On Sat, Dec 5, 2020 at 12:09 PM Craig Partridge via Internet-history <
internet-history at elists.isoc.org> wrote:

> My understanding is that by 1983 there were also free standing networks
> using ARPANET technology (e.g. in various parts of the military) and they
> kept using NCP for some time after ARPANET cut over.  Indeed, given it is
> only 37 years later, I wouldn't be surprised if there's an NCP link
> somewhere in the world :-).
>
> Craig
>
> On Sat, Dec 5, 2020 at 9:50 AM Andrew G. Malis via Internet-history <
> internet-history at elists.isoc.org> wrote:
>
> > Dan,
> >
> > I managed the NCP->TCP transition on the ARPANET that started on 1/1/83.
> I
> > wrote the IMP code that enforced the transition by adding a filter to
> drop
> > NCP packets, which was managed on a host-by-host basis. We had an
> official
> > list from DARPA of hosts that were approved to continue using NCP. I
> spent
> > New Year's Day in the NOC, turning off NCP for unapproved hosts, and I
> > fielded calls from unhappy site managers as their NCP traffic stopped
> > flowing (as they had been warned many times). I told them the process of
> > how to contact DARPA to at least temporarily get on the approved list,
> and
> > I turned the filters off and back on as directed by DARPA. Sadly, I don't
> > recall when we finished the process of turning on the NCP filter for all
> > hosts.
> >
> > Cheers,
> > Andy
> >
> >
> > On Fri, Dec 4, 2020 at 7:31 PM Dan Lynch via Internet-history <
> > internet-history at elists.isoc.org> wrote:
> >
> > > I only use real data😂🙀
> > >
> > > Dan
> > >
> > > Cell 650-776-7313
> > >
> > > > On Dec 4, 2020, at 4:26 PM, Dave Crocker <dhc at dcrocker.net> wrote:
> > > >
> > > > On 12/4/2020 4:22 PM, Dan Lynch via Internet-history wrote:
> > > >> It amazes me to hear there were sites still running NCP in the late
> > 80s
> > > in Texas.
> > > >
> > > > A reference like that, about Texas, affords such a target-rich
> > > opportunity, I'm overwhelmed.
> > > >
> > > > d/
> > > >
> > > > --
> > > > Dave Crocker
> > > > Brandenburg InternetWorking
> > > > bbiw.net
> > >
> > > --
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> > > Internet-history at elists.isoc.org
> > > https://elists.isoc.org/mailman/listinfo/internet-history
> > >
> > --
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> >
>
>
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