This review paper gives a brief insight about Mobile IP, its features and entities constituting Mobile IP environment. The paper explores the working and routing mechanism of Mobile IP with a deep insight about triangle routing in Mobile IP Version 4(MIPv4) and route optimization in Mobile IP Version 6(MIPv6). This paper discusses several security issues regarding Mobile IP implementation. This paper also highlights route optimization problems and focuses on the solution of those problems.
1. INTRODUCTION Last decades have seen a substantial interest in mobile networks. To provide mobility between homogeneous or heterogeneous networks IETF devised an Internet protocol for Internet users, called Mobile IP .