IPocalypse
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A brief on the issues surrounding the migration of the Internet to IPv6.

A brief on the issues surrounding the migration of the Internet to IPv6.

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IPocalypse Presentation Transcript

  • 1. IPocalypse 2011Friday, February 18, 2011
  • 2. IPocalypse • The destruction of the Earth by use of iTunes, as foreshadowed by the iTunes End User License Agreement.Friday, February 18, 2011
  • 3. IPocalypse • The destruction of the Earth by use of iTunes, as foreshadowed by the iTunes End User License Agreement.Friday, February 18, 2011
  • 4. IPocalypse • When your iPod / MP3 player suddenly and unexpectedly wipes out all your music, causing fear, panic, and usually mass amounts of illegal downloading to replace the lost songs.Friday, February 18, 2011
  • 5. IPocalypse • When your iPod / MP3 player suddenly and unexpectedly wipes out all your music, causing fear, panic, and usually mass amounts of illegal downloading to replace the lost songs.Friday, February 18, 2011
  • 6. Friday, February 18, 2011
  • 7. IPocalypse • A phenomenon marked by exhaustion of IP addresses that identify destinations for digital traffic.Friday, February 18, 2011
  • 8. APNIC to allocate all addresses by June 2011 3 February 2011Friday, February 18, 2011
  • 9. IP version 4 • 32 bit addresses, e.g. 11011111 00001110 10000000 00000001 = 223.14.128.1 • “Dotted quad” notation: each segment 0-255d • 2 ≈ 4 Billion possible addresses 32Friday, February 18, 2011
  • 10. IP datagram format IP protocol version 32 bits number total datagram header length head. type of length (bytes) ver length (bytes) len service for “type” of data fragment 16-bit identifier flgs fragmentation/ offset max number time to upper header reassembly remaining hops live layer checksum (decremented at 32 bit source IP address each router) 32 bit destination IP address upper layer protocol to deliver payload to Options (if any) E.g. timestamp, record route how much overhead data taken, specify with TCP? (variable length, list of routers r 20 bytes of TCP typically a TCP to visit. r 20 bytes of IP or UDP segment) r = 40 bytes + app layer overhead Network Layer 4-Friday, February 18, 2011
  • 11. IP version 6 • 128 bit addresses, e.g. 2001:0db8:0000:0000:0000:0000:0370:7334 Can omit leading zeros in each group 2001:db8::370:7334 Double colons indicate all zeros • 8 groups of 16-bit hexadecimal valuesFriday, February 18, 2011
  • 12. IP version 6 • 128 bit addresses have two parts: - 64-bit network prefix - 64-bit host address part 2001:0db8:0000:0000:0000:0000:0370:7334 network prefix host partFriday, February 18, 2011
  • 13. IP version 6 • 2 128 ≈ 340 undecillion possible addressesFriday, February 18, 2011
  • 14. IP version 6 • 2 128 ≈ 340 undecillion possible addressesFriday, February 18, 2011
  • 15. How many soccer balls?Friday, February 18, 2011
  • 16. A line of soccer balls would stretch around the circumference of the known universe - many billions of times.Friday, February 18, 2011
  • 17. Maybe smaller components?Friday, February 18, 2011
  • 18. An IPv6 address for every atom on the surface of the Earth would allow more than 100 more Earths to be covered.Friday, February 18, 2011
  • 19. 340 undecillion 282 decellion 366 nonillion 920 octillion 938 septillion 463 sextillion 463 quintillion 374 quadrillion 607 trillion 431 billion 768 million 211 thousand 456Friday, February 18, 2011
  • 20. IPv6 Header (Cont) Priority: identify priority among datagrams in flow Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data Network Layer 4-Friday, February 18, 2011
  • 21. Changes from IPv4 • No fragmentation allowed • Checksum: removed entirely to reduce processing time at each hop • Options: allowed, but outside of header, indicated by “Next Header” field • ICMPv6: new version of ICMP • additional message types, e.g. “Packet Too Big” • multicast group management functions Network Layer 4-Friday, February 18, 2011
  • 22. Changes from IPv4 • No Network Address Translation (NAT) • Automatic Address Assignment via ICMPv6 Network Layer 4-Friday, February 18, 2011
  • 23. Friday, February 18, 2011
  • 24. Friday, February 18, 2011
  • 25. Concerns • Computers and common operating systems - ready • Mobile phones - will need eventual upgrade (3G-4G) • Routers, “cable modems” - may need upgrade • Software - will need upgradesFriday, February 18, 2011
  • 26. Concerns • Server software will also be effected: • Web servers (Facebook, Google, etc) • iTunes • Server operators must make code-level changes if IPv4 addresses are hard-coded. • All Internet servers be prepared to serve IPv6-only clients by January 2012Friday, February 18, 2011
  • 27. Impact • You may not be able to get/make a new Website until the migration is complete (starting later this year). • ISPs have a lot of work to do. • Software vendors need to check their code.Friday, February 18, 2011
  • 28. World IPv6 Day • 8 June 2011 (00:00 to 23:59 UTC) • Worldwide test of IPv6 across the entire Internet. • Among others, Facebook, Google,Yahoo, Cisco, Akamai Technologies, Limelight Networks, W3C, Bing, Toms Hardware, Rackspace, and Juniper have committed to participating in the experiment.Friday, February 18, 2011
  • 29. Friday, February 18, 2011
  • 30. IPocalypse 2011Friday, February 18, 2011
  • 31. Credits - CC Licensed Matrix Code http://www.flickr.com/photos/trinity-of-one/20562069/sizes/o/ Soccer balls http://www.flickr.com/photos/shibuya246/3709172817/ Sand dunes http://www.flickr.com/photos/79721788@N00/5282834545/sizes/l/ Stars http://www.flickr.com/photos/odalaigh/1482685365/sizes/l/ Credits - Fair Use of Copyright Death of the Music Industry http://www.flickr.com/photos/edcotton/5448870273/ Ipocalpyse definitions http://www.urbandictionary.com/define.php?term=iPocalypse IPv6/IPv4 tunnel http://www.networkworld.com/subnets/cisco/chapters/158720181X/graphics/17fig11.jpgFriday, February 18, 2011