Wireless Sensor Network (WSN) is an essential part and key enabler of the Internet of Things (IoT), where hundreds or thousands of little smart detection or ascendancy knobs are interconnected to transmit detection/monitoring data or restraint directions. In order to implement detection/monitoring or ascendence helps at a large scale with seamless connection to the Internet, IPv6 would be the best solution due to its many advantages including its highly scalable address scheme, stronger protection, and full Internet submission. Therefore, IPv6 Over WSN is getting more and more enquiry and developing (R&D) attending from both diligence and academia.