Implementation Of Address Handoff In In-vehicle Gateway Based On IPv6

In recent years, with the rapid development of the Internet of things, it also led to theimprovement of the overall network level of the automotive industry. The car is no longerjust a travel tool for people, it has become an Internet entity. Unlimited communicated withthe internet is the future direction of the development of the automobile network. With theadvancement of technology, there are more and more the electronic equipments in the car,and the needs of the car’s ECU communicate with the internet is increasing. In order toachieve a vehicle-mounted ECU can communicate with the network server independently,IPv6addresses are assigned for each of the electrically controlled node ECU on thevehicles. so that it can be independently performed with the Web server on the Internetcommunication. China’s air line does not yet support IPv6protocol, thus causing thevehicle network has become an island of IPv6.In order to solve the vehicle network can not communicate with the network server,mainly due to the air line does not support the IPv6protocol. Therefore, we design the IPv6over IPv4VPN tunnel. Design a virtual network interface module in the vehicle gateway toaccept and send IPv6packets through tunnel encapsulation. As the car constantly moves, inorder to enable the car communication in a heterogeneous network, improved the entiresystem based on the principle of the mobile IPv6, and vehicle systems switches seamlesslyin different network environments. The entire design modeled on the principle of themobile IPv6, the vehicle gateway is similar to the mobile IPv6mobile node, except that themobile node is not a simple node, it is a mobile IPv6subnets. Tunnel proxy servers andmobile IPv6home agent functionality is basically the same, but the need to acceptmessages from the in-vehicle network re-opened and the package sent to the vehiclenetwork data packets.Added trusted authentication to the in-vehicle gateway for communications security,when performing network communication firstly, you need to safety certification for theon-board network system. After the certification end, the tunnel proxy server will save theauthentication information for vehicle network communications to security filter. When thecar gateway handoff, just change the in-vehicle gateway IPv4address, without change theIPv6address where the in-vehicle gateway in the mobile IPv6subnet address. We achievedvertical handoff between WLAN and CDMA heterogeneous networks and horizontalhandoff among the WLAN network. In the process of network handoff, we just trustedcertification for car gateway access to the network first time, no longer crediblecertification in network handoff. Credible certification based on IPv6, the change of thecare-of-address does not affect network security. Vehicle electronic equipment to achieveIPv6, vehicle communication network to adapt to the development of the next generation Internet, the same time, the research and development of the project enables thetraditional study mobile network switch to a transition to the system by simulationexperiments, which provided the basis for the development of vehicle network.In order to verify the performance of the system, the switch for the entire addressfunctional testing and performance testing, functional testing, network switch canautomatically switch to complete the desired effect. In performance tests, the vehiclenetwork, the traveling speed of the car is one of the factors that affect performance, but thehandover latency and packet loss rate also to ensure that the demand for vehicle networkapplications.