Structure of IPv4 address is not the best one (but neither is it very bad) Policy to assign the Ipva address is not the best one first come. first serve Management of IPv4 addresses by academic institutions in the early days, compared today with private agencies No deployment plans at global level, (from the bottom up Preoccupation of a large amount of IPv4 addresses by those who do not have the capacity to build up their proper infrastructure Government involvement is missed International cooperation is not sufficient In short, IPv4 problems are not caused by technical factors only My observations on IPv4 problems TSB11 TSB ¾ Structure of IPv4 address is not the best one, (but neither is it very bad) ¾ Policy to assign the IPv4 address is not the best one: first come, first serve ¾ Management of IPv4 addresses by academic institutions in the early days, compared today with private agencies ¾ No deployment plans at global level, (from the bottom up) ¾ Preoccupation of a large amount of IPv4 addresses by those who do not have the capacity to build up their proper infrastructure ¾ Government involvement is missed ¾ International cooperation is not sufficient In short, IPv4 problems are not caused by technical factors only My observations on IPv4 problems