One of the basic requirements of ``plug and play'' operation is that a host must be able to acquire an address dynamically, either when attaching to a network for the first time or when the host needs to be readdressed. The purpose of the ADDRCONF Working Group is to design and specify a protocol for allocating addresses dynamically to IPv6 hosts. The address configuration protocol must be suitable for a wide range of network topologies, from a simple isolated network to a sophisticated globally connected network. It should also allow for varying levels of administrative control, from completely automated operation to very tight administrative control. The scope of the working group is to propose a host address autoconfiguration protocol which supports the full range of topological and administrative environments. It is the intention that, together with IPv6 system discovery, the address autoconfiguration protocol will provide the minimal bootstrapping information necessary to enable hosts to acquire further configuration information (such as that provided by DHCP in IPv4). The scope does not include router configuration or any other host configuration functions. However, it is within the scope of the working group to investigate and document the interactions between this work and related functions including system discovery, DNS autoregistration, service discovery and broader host configuration issues, to facilitate smooth integration.