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Ipv6 - Hamzeh Al-Qudah

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Introduction to Ipv6 , Prepared by Hamzeh Al-Qudah

Introduction to Ipv6 , Prepared by Hamzeh Al-Qudah

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  • 1. IP next generationIPv6
    Presented by:
    Eng.Hamzeh Al-Qudah,NITC.
  • 2. Agenda
    What is IPv6
    IPv6 motivations
    IPv6 features & differences from IPv4
    IPv6 adoption
    IPv6 current allocation
    IPv6 traffic
  • 3. What is IPv6?
    Internet Protocol version 6 is the next-generation Internet Protocol(IPng) version designated as the successor to IPv4.
    it is an Internet Layer protocol for packet-switched internetworks.
    it was defined in December 1998 by the Internet Engineering Task Force (IETF) with RFC 2460
  • 4. IPv6 motivations
    The main reason that leads to forming IPng working forces that finally generates the IPv6
    is the limitations of IPv4 protocol.
  • 5. IPv6 motivations(IPv4 limitations)
    IPv4 has proven to be robust, easily implemented, and interoperable. However, the initial design of IPv4 did not anticipate the following:
    IPv4 address exhaustion with the recent exponential growth of the Internet.
    The requirement of security at internet layer, although it use IPSec but it is optional and not mandatory as in IPv6.
    The need for simpler configuration
    The need for better support for prioritized and real-time delivery of data
  • 6. IPv4 address exhaustion
    Available IPv4 /8s from IANA as of 19 Jan 2010
  • 7. IPv4 address exhaustion cont.
    Remaining IPv4 /8s from IANA
  • 8. IPv4 address exhaustion and its drawbacks
    as more devices and appliances is connecting to the internet public IPv4 addresses have become relatively scarce. which leads to using NAT, which :
    *Breaks globally unique address model
    *Breaks peer-to-peer model
    *Breaks some applications
    *Breaks some security protocols
    * Breaks some QoS functions
    *Introduces hidden costs
  • 9. IPv4 address exhaustion cont.
    IPv6 mitigates IPv4 address exhaustion
    IPv6 provides 128 bit address which gives an approximately 2^128 addresses, which is sufficient for current and future internet growth.
  • 10. IPv6 features and differences
    New header format
    32 bits
    32 bits
    Ver.
    6
    Traffic class
    8 bits
    Flow label
    20 bits
    Ver.
    4
    HL
    Datagram Length
    TOS
    TOS
    Payload Length
    16 bits
    Next Hdr.
    8 bits
    Hop Limit
    8 bits
    Datagram-ID
    Flags
    Flag Offset
    Source Address
    128 bits
    TTL
    Protocol
    Header Checksum
    Source IP Address
    Destination IP Address
    IP Options (with padding if necessary)
    Destination Address
    128 bits
    IPv4 header
    IPv6 header
  • 11. IPv6 features and differences cont
    Large address space:128 bit addresses
    IPv6 solves the IPv4 public address depletion problem by providing a huge address space. The business benefit of moving to IPv6 is that mobile cell phones, personal data assistants (PDAs), automobiles, appliances, and even people can be assigned multiple globally reachable addresses. The growth of the devices connected to the Internet and the software that these devices run can proceed without restraint and without the complexity and cost of having to operate behind NATs.
  • 12. IPv6 features and differences cont
  • 13. IPv6 features and differences cont
    Stateless and Stateful Address Configuration
    Better Support for Prioritized Delivery:flowlabel field.
    New Protocol for Neighboring Node Interaction: replaced ICMPv4 redirect,ICMPv4 router discovery and ARP.
    Extensibility: features can be easily added by adding extension headers.
  • 14. IPv6 features and differences cont
    Mandatory network layer security(IPSec)
    Simplified processing by routers: simpler header(option less case),no fragmentation at router level and no header checksum.
    Jumbo grams
    Multicast routing
  • 15. IPv6 features and differences summary
  • 16. IPv6 features and differences summary
  • 17. IPv6 adoption and allocation
    IPv6 adoption has been too slow. There are a number of inter-relating factors for this:
    Cost:hardware,software and technical training
    Features: all IPv6 new features seen as a not compelling case for investment.
    Incompatibility:IPv6 not compatible with IPv4
    so there must be a translation mechanism.
    Demand: currently there is a little demand to move to IPv6 from paying customers.
  • 18. IPv6 allocation-Dec 2009
  • 19. IPv6 allocation-Dec 2009
    How many total allocations have been made by each RIR?
    In terms of /32s, how much total space has each RIR allocated?
  • 20. IPv6 allocation per country.
    Orange: allocated visible
    Blue: allocated invisible
  • 21. IPv6 allocation by continent
    Orange: allocated visible
    Blue: allocated invisible
  • 22. IPv6 Jordan allocation
  • 23. IPv6 traffic
    Various indirect estimates published
    % ASNs with IPv6 BGP announcements: 3%
    IPv6 DNS queries as % IPv4 DNS load :0.2%
    IPv6 as % of all Internet traffic :0.002%
  • 24. IPv6 traffic cont.
  • 25. summary
    At some point at the future IPv6 will be the dominant internetwork protocol because of its huge features and benefits, and we all must be IPv6 Ready.
  • 26. Resources
    Juniper networks
    Microsoft
    Wikipedia
    IANA
    www.sixxs.net
    NRO status report 2009
    ARINA status report 2010
  • 27. THANKS
    Eng.HamzehAlqudah
    Network Engineer , NITC , Jordan
    Email : Hamza.Al-Qudah@nitc.gov.jo
    Mobile : +962-777-507979