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

[Dan Lynch]

Andy, I knew there were exceptional cases and that BBN was the watchdog. I had heard a rumor that many military sites were running classified applications on NCP and would probably never be able to use TCP. 

Dan

Cell 650-776-7313

> On Dec 5, 2020, at 8:50 AM, Andrew G. Malis <agmalis at gmail.com> 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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