Abstract
Wireless sensor network (WSN) is composed of many sensor platforms which have small size, low cost, wireless transmission features. WSN was originally developed for military applications as battlefield detection. Nowadays,it is adopted to civil application,including temperature and humidity detection, environment pollution detection, and vital sign detection. If we can use the contemporary network protocol(ie TCP/IP) to construct WSN basic infrastructure, it helps designer to develope WSN softwares and WSN applications more conveniently.TCP/IP is the most popular and primary component of Internet today.With TCP/IP protocol in the WSN, the WSN can be easily compatible with the Internet, Also, users are able to access and control wireless sensors to get the data which collected from the WSN.Further, people can develop more applications,even the Internet of Things. The “Internet of Things” means installing sensors to all objects, such as power systems, home appliances and public facilities etc., And all the subjects are linked up by the Internet. To achieve the particular application to implement remote control or direct communication between objects. It will be the main part of Web 4.0 in the future. TCP/IP faces a big change and challenge now due to the coming exhaustion of IPv4 address.Therefore, organizations and users must adopt IPv6 because of inadequate IPv4. Adoption of IPv6 becomes an imperative for the Internet of Things because IPv6 can supply enough address for the huge demand for IP address with the popularity of the Internet of Things system. To summarize,this paper adopt OctopusII wireless sensor platform and CONTIKI OS to implement and authenticate the WSN with IPv6 protocol.