2. Content
• Introduction
• Feature of IPv6
• Operational Principle
• Two kinds of entities comprise a Mobile IP implementation
• Difference between IPv4 and IPv6
• Application Of IPv6
• 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 (FA) stores information
about mobile nodes visiting its network. Foreign
agents also advertise care-of addresses, which
are used by Mobile IP.
7.
8. 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. 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
