This document discusses IPv6 implementation and its advantages over IPv4. It describes the three main methods for implementing IPv6: dual-stack, translation, and tunneling. Dual-stack allows devices to use both IPv4 and IPv6 simultaneously. Translation converts between IPv4 and IPv6 traffic, while tunneling transports IPv6 traffic through an IPv4 network. Most modern software and hardware can support IPv6, so organizations should start migrating to IPv6 as IPv4 addresses are becoming depleted.

1. IPv6 – Implementation and
Advantages
•A.M. Jayasekara
•N.U. Wickamasinghe
•W.H.M.S.P.Wijetunge
• W.G.C.W. Kumara

2. AIM
Identifying methods of IPv6
implementation.
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3. Content
•What is IP?
•IPv4
•IPv6
•Methods of IPv6 implementation.
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4. How many people use Internet
every day ?
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6. • That is 2,267,233,742 (2.3 Billion) users
worldwide.
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32.7% of the world population
How to identify these users ?
How do we name them?
That is where the IP – Internet
Protocol comes in !

7. Internet Protocol - Definition
The principal set of procedures used for
transferring data packets between
devices on a network-of-networks using
the Internet Protocol Suite.
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8. IP
• An IP is used to ,
• Address each device connected to
internet.
• Regulate data transfer between devices.
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9. There are two commonly used IP versions at
the moment.
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IPv4 – Internet
Protocol version 4
IPv6 – Internet
Protocol version 6

10. IPv4
• Uses 32bit addresses
• Which limits the address in to
4,294,967,296 (4.3 billion) addresses.
• Limited security
• No authentication or encryption at IP
level.
• Most commonly used version.
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11. However By 2014, expected number of
devices that are connected to the internet
is estimated as 50 Billions.
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That is 12 times more than current IPv4 can
support.

12. So what will happen ?
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Do we find ourselves unable to connect to
the internet via new devices ?
The answer – NO!
Reason for developing IPv6 is to
address the IPv4 address exhaustion.

13. IPv6
 Designed to overcome limitations of
IPv4.
•Uses 128bit addresses
• 340 Undecilion (3.4x1038) addresses.
•High security
• Data encryption and authentication.
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14. Increased
address space
Reduced
management
requirement
Better
mobility
support
Security
Features of IPv6
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15. How do we start using IPv6 ?
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16. Methods of IPv6 implementation
There are three main methods ,
• Dual-Stack
• Translation
• Tunneling
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17. Dual-Stack
•It operates both IPv4 and IPv6
simultaneously on the same
infrastructure.
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18. Simple.
Uses
minimum
resources.
Some
network
vendors and
servers do not
support IPv6.
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Dual-Stack

19. Translation
• Converting IPv6 traffic into IPv4 traffic for
transportation and vice versa.
• Traffic is not encapsulated, it is directly
converted to the destination type.
• Two main methods are used in translate
method.
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20. Translation Methods
• Network Address Translation Protocol
Translation (NAT-PT)
• NAT-PT method configure a translation
of an IPv4 address into an IPv6 address
and vise versa either statically or
dynamically.
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21. Translation Methods
• NAT64
• NAT64 mechanism allows IPv6 hosts to
communicate with IPv4 servers.
• The IPv6 client embeds the IPv4 address
it wishes to communicate with and
sends its packets to the resulting
address.
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22. Can deal
with
different
types of
protocols
Not a good
option when
IPv4 uses
NAT
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Translation Methods

23. Tunneling
•Transporting IPv6 traffic through an
IPv4 network transparently.
•Few different tunneling methods
exists for IPv6.
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24. Tunneling Methods
• Manual IPv6 Tunnels
• Manually created IPv6 tunnel is configured
between two routers, that each must support
both IPv4 and IPv6.
• 6to4 Tunnels
• It is IPv6 to be tunneled via IPv4.
• 6to4 allows for automatic IPv6-to-IPv4 address
translation, and treats the underlying IPv4
network as one big Non-Broadcast Multi-
Access network.
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25. Used on top
of an existing
IPv4
network.
Hardware
must
support both
IPv4 & IPv6.
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Tunneling Methods

26. Are we ready for IPv6 ?
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27. IPv6 Readiness
• Compatibility with IPv6 networking is a
software or firmware issue.
• The American Registry for Internet
Numbers (ARIN) suggests that all Internet
servers to be prepared to serve IPv6-only
clients by January 2012.
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28. IPv6 Readiness - Software
• Most personal computers running
recent operating system versions are IPv6-
ready.
• Most popular applications with network
capabilities are ready, and most others
could be easily upgraded with support
from the developers.
• Java applications adhering to Java 1.4
(February 2002) standards have support
for IPv6
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29. IPv6 Readiness - Hardware
• Low-level equipment like network
adapters and network switches may not
be affected by the change.
• since they transmit link-layer frames
without inspecting the contents.
• Networking devices that obtain IP
addresses or perform routing based on IP
address do need IPv6 support.
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30. Finally what should we do ?
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31. Now, as available IPv4 addresses are almost
over it is the time for ISPs, large and small
companies and universities to start migrating
to IPv6.
Based on the results of this analysis of the
available technologies it is rewarding to
migrate from IPv4 to IPv6 based on user
requirements.
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32. Thank You
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