IVe THE NEED FOR IPV6 The Internet has been a great success Success creates problems IPv4 is running out of global IP Addresses Addresses are currently being rationed Network Address Translation(NAT)has extended the life of ipya, but Breaks Internet End-to-End model Inhibits new applications Barrier to mobile p communication Mobile phones without phone numbers? 4 @NOKIA 2003"IPv6 Protocol- Latest Developments"/28 March 2003/R Hinden N口KA4 © NOKIA 2003 “IPv6 Protocol - Latest Developments” / 28 March 2003 / R. Hinden THE NEED FOR IPv6 • The Internet has been a great Success! • Success creates problems • IPv4 is running out of Global IP Addresses • Addresses are currently being rationed • Network Address Translation (NAT) has extended the life of IPv4, but: • Breaks Internet End-to-End model • Inhibits new applications • Barrier to mobile IP communication Mobile Phones without phone numbers?