1. IPv6

2. Why IPv6? Running out of IPv4 addresses Internet Assigned Numbers Authority allocated the last 5 /8 blocks on 3 Feb 2011 Internet Assigned Numbers Authority allocated the last 5 /8 blocks on 3 Feb 2011 5 RIRs (Regional Internet Registries) 5 RIRs (Regional Internet Registries) APNIC – Asia, Australia, New Zealand RIPE – Europe, Middle East, Central Asia ARIN – US, Canada, Antarctica, some Caribbean LACNIC – Latin America, Caribbean AfriNIC - Africa

3. Why IPv6 (contd) APNIC Ran out of freely allocated addresses on 15 April 2011 RIPE Expected to be next Rest run out in 6 months to several years In reality, with restricted allocation policies there may be addresses available for a few years yet.

4. IPv6 Videos IPv6 Video – Part 1 1:41 – 4:18 5:30 – 11:50 IPv6 Video – Part 2 0:27 – 9:20 IPv6 Video – Part 3 0:21 – 4:35

18. Deployment World IPv6 day- 8 June 2011 Test of IPv6 Major web companies and others in industry enabled IPv6 on their main websites for 24 hours (Facebook, Google, Yahoo, others) An additional goal was to motivate ISPs, etc. to prepare their services for IPv6 Results: Major carriers measured the percentage of IPv6 traffic of all Internet traffic as increasing from 0.024 to 0.041 The largest increase was to Google sites Early results indicated that the day passed according to plan and without significant problems for the participants Cisco and Google reported no significant issues during the test Facebook called the results encouraging, and decided to leave their developer site IPv6-enabled as a result

19. Deployment (contd) But the consensus was that more work needed to be done before IPv6 could consistently be applied Google deploys IPv6 for internal network

20. Need to Know IPv6 Improvements IPv6 Addresses and Format 8 blocks, 16 bits each -> total 128 bits Uses hex numbering scheme How to represent/read IPv6 addresses IPv6 address types and uses Subnetting Prefix/Host division 3 block prefix, 4 th block for subnets, last 4 blocks for hosts