2012/09/22 ARIN enters IPv4 exhaustion phase two

This week we saw another step towards IPv4 address exhaustion. The American Registry for Internet Numbers (ARIN) reached 3.00 /8s of space remaining, this triggers phase two of its exhaustion planning. This sees requests move to a first in first out model and overall criteria for allocations tightening. Not exhaustion, but considering just how quickly addresses dissappeared this week (from 3.02 /8s to 2.89 /8s over night) we will be there soon enough. For more details on what this really means: