2. Outline
Introduction
Inconvenients of IPv4
Internet Protocol vesion 6
Hirearchical Mobile Internet
Protocol vesion 6
Conclusion

3. Introduction:
Today the number of devices using IP address has
increased exponentially.
Most of these devices are mobile
(phones, cars, PDAs, sensors…)
Problematic:
•Have an address and Keep contact
•Be reachable
•Maintain communication while moving.
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4. Inconvenients of IPv4
Insuffieciency
Increasing routing information
Increasing the number of Network Address
Translation (NAT)
Security issues
Percentage of IPv4
USA
EUROPE
ASIA
Others
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5. Internet Protocol version 6

6. What isIPv6 ?
What’s IPv6
IPv6 = Internet Protocol Version 6
 IPv6: The next generation IP protocol, is
backward compatible with and is designed to fix the
shortcomings of IPv4, such as data security and
maximum number of user addresses.
 IPv6 increases the address space from 32 to 128 bits
 IPv4= 4 billion addresses.
 IPv6= over 340 trillion addresses.
IPv4 @ = 32 bits
IPv6@ = 128 bits
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7. 10/30/2011 7

8. IPv6 Better!
Larger address
space
Reduce the size of
Security & Qos
routing tables
IPv6
Remove the need for
Overcome the
Network Address
limitations of IPv4
Translation (NAT)
Adapted for:
auto-configuration
and
Mobile devices
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9. IPv6 address components
IPv6 Address Components
Architecture:
IP address space from 32 bits to 128 bits. The
new 128-bit IPv6 addresses are represented in
the form of eight 16 bit components divided in
columns:
IPv6 address :is made ofX : X parts: Prefix &
X X : X : X : two : X : X
Suffix
64 bits Prefix 64 bits suffix
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10. IPv6 Packet
IPv6 Packet
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11. Mobile Internet Protocol Version 6

12. Definition of MIPv6 IPv6:
Definition of Mobile
 : Mobile IPv6 is a protocol developed
as a subset of Internet Protocol version 6 to
support mobile connections.
Mobile IPv6 (MIPv6) specifies routing
support which permits an IPv6 host to
continue using its home address as it
moves around the Internet, enabling
continuity of sessions.
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13. MIPv6 Properties
MIPv6 properties:
IPv6 Mobility is based on :
 Experience in MIPv4;
 New features of IPv6;
 The advisability of deploying a new version of IP;
MIPv6 enables support communications
with a mobile device by making a
routing :
 To the point of attachment of the mobile on the Internet;
 To the mobile device’s address in the subnet network.
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14. MIPv6 Packet
MIPV6 Packet
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15. Mobile Terminology
MIPv6 IPv6 Terminology:
 Home Agent (HA): A router or a node
located on the home Network that acts on
behalf of the mobile node while away from
the home Network. HA
 Mobile Node (MN): A node that changes its
location within the Internet topology. A node’s
MN
mobility could be a result of physical
movement or of changes within the topology.
 Correspondent Node (CN): Any node that
communicates with the mobile node.
CN
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16. Exemple MIPv6 communication scenario:
Example of of MIPv6 Communication
Scenario
Visited Network
CN
IPv6
MN HA
Home Network
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17. Exemple MIPv6 communication scenario:
Example of of MIPv6 Communication
Scenario
Visited Network
Care-of-Address MN’s
+
Route Node’s
Mobile
@
authentication
Care-of- Address Optimization
New
Network
Router
Prefix
Solicitation Bindin
g CN
Update IPv6
Binding
MN HA Cache
Home Address Home Network
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18. Limits of MIPv6
Limits of MIPv6
 MIPv6 is inefficient when the mobile
device changes often the anchor point
within the same area.
 =>The solution is the Hierarchical
Mobile IPv6
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19. Hierarchical MIPv6 IPv6
Hierarchical Mobile
 Reduce the exchange messages
between the mobile device and home
agent.
 => new Entity Mobility Anchor Point
 => 2 temporary address
* For the local area(subnet).
* For the region.
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20. Limits of MIPv6
• Mobile IPv6 & HMIPv6:
• Adapted to the long tcp connections
(ftp...) & internet standard
applications(web browsing, http ...)
• Cannot be reliable to real time
applications
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21. Conclusion
CONCLUSION
 Today Mobile devices play major role in
the growth of Internet.
 Internet Doubles Every Year.
 IPv6 starts to be mature enough to be
deployed commercially.
 IPv6 will be the enabling technology for
the mobile Internet.
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