On 10/21/2010 09:25 PM, George Bonser wrote: >> However, consider the fact that there will be v6 only hosts popping up >> after IANA/RIR/ISP exhaustion. There will be new entrants in the > public >> internet space that cannot obtain v4 addresses and will be reachable >> via v6 >> only ... > Yep, you can't do NAT64 if you don't have "4". But that said, just > because ARIN is exhausted doesn't mean PA space is exhausted so there > will be addresses available though it will be tight. > > That is exactly what the last 5 /8's are for as I understand it.
The last 5 /8's will be allocated to each RIR immediately and I think by now every RIR has a policy for that last /8 which pretty much says: only for transitional purposes
