On Sat, 21 Feb 2015, Saeed Khademi wrote:
Now if some organizations are selling their IP address spaces, it means they don't need them. Even worse, they may have been lying in the first place.
Or they just decide that putting their existing customers behind CGN and selling their IPv4 addresses is a better business decision than keeping their customers on globally unique IPv4 address per customer. The only reason they would be doing this work (and possible customer experience degradation) is that the IPv4 address has value. So if IPv4 address has no value (as per your implication above), then this work will never get done. So your proposal will never work in real life unless you start to change the definion of "justification", for instance to say that we no longer consider giving IPv4 GUA to residential consumers or mobile handsets justifiable, and that all that space must be handed back. I don't see how you will ever get consensus for that policy change though. -- Mikael Abrahamsson email: swmike@swm.pp.se