The recent advances in wireless communication technology and the unprecedented growth of the Internet have paved the way for wireless networking and IP mobility. Mobile Internet protocol[1,2] has been designed within the IETF to support the mobility[2] of users who wish to connect to the internet and maintain communications as they move from place to place. Mobile IPV6 allows a mobile node to talk directly to its peers while retaining the ability to move around and change the currently used IP addresses. This mode of operation is called Route Optimization[7,10].In this approach, the correspondent node learns a binding between the Mobile nodes permanent home address and its current temporary care-of-address. This introduces several security vulnerabilities to Mobile IP, among them the most important one is the authentication and authorization of binding updates. This paper describes the Route optimization by the introduction of mobility. In this paper , we proposed a new efficient technique for route optimization in mobile IP for smoothly communication while MN moving from one network domain to other without losing the connection. Our technique will also be improve the path in intra-network communication[9].