Re: ipv4 and ipv6 Coexistence.

[Stewart Bryant <stewart.bryant@xxxxxxxxx>]

On 26 Feb 2020, at 09:56, tom petch <daedulus@xxxxxxxxxxxxx> wrote:

On 26/02/2020 09:35, Stewart Bryant wrote:

Before my time, but was IPv4 designed before or after the Internet was released from the government to the public?

Way before, if I understand your question aright.

I see the start of the public internet as April, 1995, when commercial activity, over and above applying for NSF grants, was permitted.  This enabled ISPs as we now know them.

IPv4?  I date to RFC791, September 1981 although much of the technology was fixed before then.

Tom Petch

My question was semi-rhetorical because I did not remember the exact timing, but I think this conforms my suspicion that the key technical decisions behind the Internet were made whilst it was under government control.

- Stewart