[ih] IP versions 1-3

[Craig Partridge]

IEN-28  of February 1978 is "Draft Internet Protocol Specification" and
preceeds IEN's 40 and 54, both of which are labelled IPv4 (interesting
to figure out what, if anything changed between those two and RFC 791).

So at least one earlier version was circulated.  Alas, I can't find IEN-28
online.

Craig

In message <45250CC1.1090707 at uninett.no>, Stig Venaas writes:

>I tried to such through the archive, but I haven't found any discussion 
>on what happened to IP versions 1-3. Do there exist protocols or 
>proposals for IP protocols prior to what became v4, or what was the 
>reason for naming it IPv4? Is e.g. NCP regarded as one of those pre v4 
>versions?
>
>Stig