[Info-vax] Reading Gordon Bell's VAX strategy document

Johnny Billquist bqt at softjar.se
Thu Sep 28 10:20:51 EDT 2023


On 2023-09-28 14:04, Single Stage to Orbit wrote:
> On Thu, 2023-09-28 at 12:58 +0200, Johnny Billquist wrote:
>> There were of course development, and testing done between machines
>> and so on. But that was not "ARPANET". ARPANET was running NCP until
>> flag day, when it officially switched to IP. And at some point after
>> that, all of ARPANET because just the 10.* addresses on the Internet,
>> and then ARPANET was turned off, and it was decided that 10.* should
>> not exist on the Internet anymore...
> 
> That 10.* address range still lives on in private networks to this very
> day. Hadn't realised until now that ARPAnet actually had that address
> range.

Yes. It's a private range for exactly the reason that when ARPANET was 
decomissioned/turned off, its address range was decided to not be 
reused. Which made it available for private use as it is today.


One bit of ARPANET still exists today. The weird reverse DNS lookups on 
IP addresses are done within the arpa.net domain. :-)

Gromit:/Users/johnny.billquist> nslookup -query=ptr 8.8.8.8.in-addr.arpa.net
Server:         195.186.1.111
Address:        195.186.1.111#53

Non-authoritative answer:
8.8.8.8.in-addr.arpa.net        name = localhost.

Authoritative answers can be found from:


   Johnny




More information about the Info-vax mailing list