Wireless Sensor Network (WSN) is an essential part and key enabler of the Internet of Things (IoT), where hundreds or thousands of little smart perception or ascendency thickenings are interconnected to transmit detection/monitoring info or restraint books of instructions. In order to implement detection/monitoring or ascendance avails 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 security system, and full Internet compliancy. Therefore, IPv6 Over WSN is getting more and more inquiry and ontogenesis (R&D) attending from both manufacture and academia.