Abstract- There is a very huge substantial increase in the mobile computers user. There is a very huge substantial increase in the mobile computer users. There is a necessity to maintain continuous connectivity between host and the user. Mobile IP is a standard protocol, which allows the mobile device users to move from one network to another network. The protocol performs three functions: Agent Discovery, Registration, Tunneling, and Reverse Tunneling. This paper will discuss these four component protocols in detail and speaks about various terms involved with mobile IP such as Agent advertisement, correspondent node, link, link layer address, mobility binding, mobility security association, security parameters index, tunnel, etc. In addition, the paper will also discuss about few issues in mobile IP concerning security in the network, multicast of packets, route optimization.
Key words: Mobile IP, Agent Discovery, Registration, Tunneling, Reverse Tunneling, Agent advertisement, Mobility binding, route optimization.
I. INTRODUCTION
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