Not Making Use of 240/4 NetBlock

bzs at bzs at
Sun Mar 13 23:28:37 UTC 2022

Personally I'd rather hear from the RIRs regarding the value or not of
making more IPv4 space such as 240/4 available. They're on the front
lines of this.

I think sometimes what we're manipulating in these debates is the time
factor: Someone with a worthy, immediate, urgent need versus some
distant horizon which might be preferable in the big picture but is
demanding possibly unreasonable sacrifices of some in the short term.

I don't believe we are pondering making this IPv4 space available and
then returning to the 1980s/1990s relative free-for-all.

This all might be more interesting if driven by consideration of those

On March 13, 2022 at 13:54 johnl at (John Levine) wrote:
 > It appears that Joe Maimon <jmaimon at> said:
 > >Saku Ytti wrote:
 > >> What if many/most large CDN, cloud, tier1 would commonly announce a 
 > >> plan to drop all IPv4 at their edge 20 years from now? How would that 
 > >> change our work? What would we stop doing and what would we start doing? 
 > >
 > >I cant see how it would change or do anything IPv6-related for myself 
 > >for at least 19 years. And I suspect most others would fall somewhere 
 > >between that and never.
 > Yet the four largest cable networks and all of the mobile networks in the
 > US have had full IPv6 support for years as do AWS, Google, Azure, Digital
 > Ocean, Linode, and many other hosting providers.
 > Could you explain what "most" means where you are?
 > R's,
 > John

        -Barry Shein

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