RE: IPv4 address length technical design

["Tony Hain" <alh-ietf () tndh net>]

> Sadiq Saif [mailto:sadiq () asininetech com] wrote:
>
> On Wed, Oct 3, 2012 at 12:13 PM, Chris Campbell <chris () ctcampbell com>
> wrote:
> > Is anyone aware of any historical documentation relating to the choice of 32
> bits for an IPv4 address?
> > Cheers.
>
> I believe the relevant RFC is RFC 791 - https://tools.ietf.org/html/rfc791

Actually that was preceded by RFC 760, which in turn was a derivative of IEN 123. I believe the answer to the original 
question is partially available on a series of pages starting at :   http://www.networksorcery.com/enp/default1101.htm 
IEN 2 is likely to be of particular interest ...