Mobile Ipv6 In Lwip

Nowadays, mobile computing is becoming popular with more and more wireless devices beginning to offer IP connectivity. When a node moves to another subnet, it expects to keep current communication despite the subnet shift. Since the currently used IPv4 protocol can't make mobility transparent to the user, mobile IPv4 was designed to solve this problem. However, IPv6 is the future trend for network protocol with the advantage of built-in mobility support. Besides, the wireless industry tends to be in support of IPv6. For instance, the Third-Generation Partnership Project (3GPP) has adopted IPv6 as the wireless network standard for the third generation with the development of embedded system and communication network, especially the development of IPv6, more and more embedded device require mobile IPv6 technology.The MIPL (Mobile IPv6 for Linux) is an implement of mobile IPv6 in Linux environment. More and more people accept and implement it in real IPv6 enviroment. It has high value.The LwIP (Light weigth IP) is a TCP/IP protocol that can be used in embedded device. It is widely ported to many embed operation systems.If we add mobile IPv6 to the LwIP, it can make the device which transport LwIP support mobility.The paper's target is transporting MIPL to LwIP, and then transport the LwIP which was transported MIPL to linux. The function of the LwIP is test in real network environment.Firstly, the paper introduce the principle of mobile IPv6, including the background of mobile IPv6, the amending of IPv6 by mobile IPv6, the base operation of mobile IPv6, the comparision of mobile IPv6 and mobile IPv4.Then, the paper research the base arithmetic of MIPL which implement the mobile IPv6 based on linux, analyse the base data flow and data structure in MIPL.Then, the paper compare linux operation and LwIP, research the feasibility that transported MIPL to LwIP, and give a method of transporting.In the end, after transportting the MIPL to LwIP, in order to testing that if the transport is successful, I transport LwIP to Linux. The LwIP had been test in real network environment. I got the success, and based the further research.