|  |  | The Internet Engineering Task Force (IETF) is a large open international community of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture and the smooth operation of the Internet | 
| IETF |  |  | 
|  |  | The IPv6 Cluster is a collaboration among different IPv6 related activities   and a central IPv6 information portal | 
| IPv6 Cluster |  |  | 
|  |  | The Information Society Technologies web site is a centralportal for the European research activities | 
| IST |  |  | 
|  |  | The Nautilus6 working group belongs to the WIDE organization and is managed by volunteers aiming at providing a better mobility IPv6 environment | 
| Nautilus6 |  |  |