1. Internet Protocol version 6 (IPv6) m5151108 Hayato Namae 2015/10/8Colloquium1

2. Outline Background IPv6 -Description -Main Issue World IPv6 Day Conclusion 2015/10/8Colloquium2

3. Background Internet Protocol version 4 (IPv4) is used in the Internet as a Internet Protocol now -IPv4 address assigned newly is going to disappear 2015/10/8Colloquium3 If the IPv4 address completely disappear Can no longer connect device (computer, cell-phone, etc.) to the Internet Cannot establish a new website As a result, development of the Internet stops Internet Protocol version 6 (IPv6) is going to be introduced to solve this problem

4. IPv6 2015/10/8Colloquium4 Address notation of the IPv6 2001:0db8:0000:0000:288a:1fc0:0001:0023 Address notation of the IPv4 192.0.2.1 2001:0db8:0:0:288a:1fc0:1:23 2001:0db8:0000:0000:288a:1fc0:1:23 2001:0db8::288a:1fc0:1:23 IPv4 has 2 32, on the other hand IPv6 has 2 128 IP address  This is huge number so as to remain even if assigns an IP address to stones of the world

5. Main Issue IPv6 is not compatible with IPv4  must support both protocols during the parallel operative period 2015/10/8Colloquium5 Dual Stack IPv6 server IPv4 server Dual Stack router Dual Stack client Dual Stack means that support IPv4 and IPv6 functions.

6. Main Issue 2015/10/8Colloquium6 Tunneling IPv6 IPv4 IPv6 A technique that encapsulate a packet and send it in a network is tunneling

7. World IPv6 Day World IPv6 Day was an event sponsored and organized by the Internet Society  started at 00:00 UTC on June 8, 2011 and ended 23:59 the same day  The main motivation for the event was to evaluate the real world effects of the IPv6  Many company participated -Google -Yahoo! -Facebook -Akamai -Limelight Networks …… 2015/10/8Colloquium7

8. World IPv6 Day 2015/10/8Colloquium8 (http://asert.arbornetworks.com/2011/06/world-ipv6-day-final-look-and-wagons-ho/) Percentage of IPv6 traffic of all Internet traffic

9. Conclusion The IPv6 is a method to solve the issue of IP address drying up Currently, manage two protocols of IPv4 and IPv6 parallel The percentage of the IPv6 is still low and will take more time to completely shift 2015/10/8Colloquium9