[ih] IP version 7

[Scott O. Bradner]

the sequence was that once we (the IPng directorate, Allison & I) had decided on what we were going to 
recommend as IPng I went to Jon and asked for an IP version number  - he said that the next available 
number was 10 (5 was ST2 and the others had been assigned to the experimental IPng protocols SIPP,
TUBA and Catnip) 

I went back to the group and said that Jon had given us 10

someone pointed out that this could be a real problem since Van had used the high order bit of the version
number to indicate header compression 

I went back to Jon - he suggested asking the SIPP folk to release 6 since the experimental SIPP IPng 
protocol was not going to go anywhere - I asked Steve & Bob if that would be OK and they agreed

so IPng became IPv6

Scott

> On Dec 18, 2020, at 9:15 AM, Marco Davids (Private) via Internet-history <internet-history at elists.isoc.org> wrote:
> 
> Hello,
> 
> Today I learned of:
> 
> https://tools.ietf.org/html/draft-iab-ipversion7
> (also referred to in RFC1726).
> 
> It was written well before IPv6.
> 
> I know why IPv5 was skipped, but does anyone happen to know why IPv7 was ultimately dubbed IPv6?
> 
> -- 
> Marco
> -- 
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