This paper outlines the concept of auto-organisation in IPv6 networks. If the auto-configuration of hosts is defined by IPv6 and mandatory, these mechanisms can not be assimilated to a fully plug and play feature, as IPv6 routers still have to be manually configured. To succeed in new domains such as SOHO, a full auto-configuration feature must be offered. Indeed, the configuration of 64 bits IPv6 prefixes and the numbering of links is not really friendly and is error prone, especially in home networking. This paper tackles the issues that arise, reviews actual solutions, and proposes a totally distributed protocol named NAP for IPv6 routers auto-configuration.