A Presentation on Mobile IPv6

Presented By :PARAS JHA4912316

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

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 agentThe home agent intercepts packets addressed to the

mobile node and tunnels them to the mobile node’s present location

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

Operational PrincipleThe 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

Mobile Node

address

Permanent home

address

Care of address

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.

IPv6 Addressing

Difference between IPv4 and IPv6IPv4 IPv6

• Address32 bits (4 bytes)

• Packet size576 bytes required

• Packet fragmentationRouters and sending hosts

• BroadcastYES

• MulticastYes

• Address128 bit (16 bytes)

• Packet size1280 bytes required

• Packet fragmentationSending host only

• BroadcastsNO

• MulticastYes

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

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

Application Of IPv6• FTP clients

• Telnet clients

• Internet Explore

Conclusion• Mobile IPv6 is

An efficient and deployable Protocol for handling mobility with IPv6

Lightweight ProtocolTo minimize the control traffic needed to

effect mobility

THANK YOU