IPv4 address length technical design

Cutler James R james.cutler at consultant.com
Wed Oct 3 23:10:04 UTC 2012


On Oct 3, 2012, at 4:17 PM, Dave Crocker <dhc2 at dcrocker.net> wrote:
>>>> Is anyone aware of any historical documentation relating to the
>>>> choice of 32
>>> bits for an IPv4 address?
> ...
>> 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
> ...
> 
> 
> My theory is that there is a meta-rule to make new address spaces have 4
> times as many bits as the previous generation.
> 
> We have three data points to establish this for the Internet, and that's
> the minimum needed to run a correlation:  Arpanet, IPv4, IPv6...
> 
> d/


Didn't work for DecNet Phase III, Decnet Phase IV, Decnet Phase V (8, 16, 128).


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