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IPv6

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

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IPv6

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  1. IPv6

  2. Why IPv6? • Running out of IPv4 addresses • Internet Assigned Numbers Authority allocated the last 5 /8 blocks on 3 Feb 2011 • 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

  5. 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

  6. 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

  7. 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, 4th block for subnets, last 4 blocks for hosts

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