[ih] RFC 1918 addresses

Craig Partridge craig at tereschau.net
Fri Oct 6 05:59:31 PDT 2017


As I recall, 10/8 was because it was the only prefix still around of that
size (having until recently been the ARPANET's IP network number).  I
suspect similar reasons drove the other two, but don't know as I wasn't
close to this process.

Craig

On Fri, Oct 6, 2017 at 8:42 AM, John Kristoff <jtk at depaul.edu> wrote:

> Elsewhere someone asked why the prefixes defined in RFC 1918 (10/8,
> 172.12/12, 192.168/16) were the codified private prefixes.  Does anyone
> know the definitive reason, if there was one, why these prefixes were
> selected over or instead of any other?
>
> Thank you,
>
> John
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