The Internet of Things is the new paradigm arise in the last years, based on the idea that everyday object can connect to the Internet and exchanging information with other objects and people. This is possible thanks to the Smart Objects. which are the base of IoT: they are small wireless devices equipped with a tiny sensor, and generally are battery powered. The Internet Engineering Task Force (IETF) formed a new Working Group named Routing Over Low power and Lossy networks (ROLL) to standardize an IPv6-based routing protocol for IP smart object networks; the result was the IPv6 Routing...