The Internet Protocol (IP) is currently accelerating the integration of voice and data communications. The Mobile IP protocol enables host mobility support, but several scenarios exist today, such as the provision of Internet access from mobile platforms (for example, planes, trains, cars, etc.), making it necessary to also support the mobility of complete networks. In response to this demand, the Internet Engineering Task Force (IETF) has developed the Network Mobility (NEMO) Basic Support Protocol , enabling IPv6 network mobility. This article explains the Network Mobility Basic Support Protocol, by first providing a general overview and then examining the details.