• List and describe the major components in a Mobile IP architecture.
• Explain how Mobile IP works.
• Recognise the issues involved in Mobile IP implementations

Introduction
Quick review of IP, What is Mobile IP? What Mobile IP provides, Mobility requirements, Where Mobile IP is required, where mobile IP is not required, DHCP as an alternative, Proxy ARP as an alternative.

Architecture
Mobile node, home network, home agent, Foreign agent, Fixed home address, Care of address, Correspondent node, Tunnelling.

How Mobile IP works
Using two addresses, issues with TCP, discovering the care of address, registering care of address, tunnelling the care of address. The protocols involved.

Issues with Mobile IP
Routing inefficiencies, Security and firewalls, ingress filtering, QoS.

MIP and IPv6
Stateless address configuration, Neighbour discovery, miscellaneous.