This presentation provides an overview of Mobile IPv6. It introduces Mobile IPv6 and explains that it enables IPv6 nodes to move between IP subnets. It describes the key entities in a Mobile IPv6 implementation including home agents and foreign agents. It also covers features of IPv6 like address autoconfiguration, neighbor discovery, and extension headers. The presentation compares IPv4 and IPv6, explains why IPv5 was not adopted, and discusses advantages and applications of IPv6 as well as Mobile IPv6.

1. A Presentation on Mobile IPv6
Presented By :
PARAS JHA
4912316

2. Content
• Introduction
• Feature of IPv6
• Operational Principle
• Two kinds of entities comprise a Mobile IP implementation
• IPv6 Addressing
• Difference between IPv4 and IPv6
• Why Not IPv5
• Application Of IPv6
• Advantages and Disadvantages
• Conclusion

3. Introduction
• Mobile IPv6 is intended to enable IPv6 nodes
to move from one IP subnet to another.
• While a mobile node is away from home
It sends information about its current location to a
home agent
The home agent intercepts packets addressed to the
mobile node and tunnels them to the mobile node’s
present location

4. Feature of IPv6
• Address auto configuration
• Stateless auto configuration
• Stateful auto configuration
• Neighbor discovery
• Discovers each other’s presence and find routers.
• Determine each other’s link-layer address.
• Maintain reachability information.
• Extension Headers
• Routing header
• Destination option Header

5. Operational Principle
The goal of IP Mobility is to maintain the TCP connection
between a mobile host and a static host while reducing the effects
of location changes while the mobile host is moving around,
without having to change the underlying TCP/IP

6. Two kinds of entities comprise a
Mobile IP implementation
• A HOME AGENT (HA) stores information about mobile
nodes whose permanent home address is in the home
agent's network.
• A FOREIGN AGENT (MN) stores information about
mobile nodes visiting its network. Foreign agents also
advertise care-of addresses, which are used by Mobile
IP.

8. IPv6 Addressing

9. Difference between IPv4
and IPv6
IPv4 IPv6
• Address
32 bits (4 bytes)
• Packet size
576 bytes required
• Packet fragmentation
Routers and sending hosts
• Broadcast
YES
• Multicast
Yes
• Address
128 bit (16 bytes)
• Packet size
1280 bytes required
• Packet fragmentation
Sending host only
• Broadcasts
NO
• Multicast
Yes

10. Why Not IPv5
• Version 5 was used while experimenting with stream
protocol for internet
• Known as Internet Stream Protocol
• Used Internet Protocol number 5 to encapsulate its
datagram
• Though it was never brought into public use but it was
already used

11. Advantages and
Disadvantages of IPv6
• Advantages :
 Support for security using (IPsec) Internet Protocol Security
 More powerful internet (128bit)
 Address allocation is done by the device itself
• Disadvantages :
 It will be much harder to remember IP addresses
 IPv6 is not available to machines that run IPv4
 Time to convert over to IPv6

12. Application Of IPv6
• FTP clients
• Telnet clients
• Internet Explore

13. Conclusion
• Mobile IPv6 is
An efficient and deployable Protocol for
handling mobility with IPv6
Lightweight Protocol
To minimize the control traffic needed to
effect mobility

14. THANK YOU