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zero configuration networking zeroconf charter the ietf zero configuration networking zeroconf working group completed its work on dynamic configuration of ipv4 link local addresses and wrapped up in july 2003 this snapshot of the charter page is maintained for historical interest zero configuration networking zeroconf in addition to this official charter maintained by the ietf secretariat there is additional information about this working group on the web at additional zeroconf web page chair s erik guttman email protected stuart cheshire email protected internet area director s thomas narten email protected erik nordmark email protected internet area advisor thomas narten email protected mailing lists general discussion email protected to subscribe email protected in body subscribe zeroconf your_email_address archive http www merit edu mail archives zeroconf description of working group the goal of the zero configuration networking zeroconf working group is to enable networking in the absence of configuration and administration zero configuration networking is required for environments where administration is impractical or impossible such as in the home or small office embedded systems plugged together as in an automobile or to allow impromptu networks as between the devices of strangers on a train zeroconf requirements will make networking as easy as possible but no easier in some cases other considerations may dominate ease of use for example network security requires some configuration which may not be as easy as the unacceptable alternative of no security networks where zeroconf protocols apply can include but are not limited to environments where no dhcp madcap or dns servers are present this working group will address both ipv4 and ipv6 many functions which are not of fundamental importance to host and application configuration are outside the scope of the working group this is not because there are no other problems to solve for networking in an environment without preexisting configuration this working group will focus on an achievable subset of these problems the zeroconf wg will precisely define the requirements for each of the following functions interface configuration ip address network prefix gateway router name to address translation service discovery automatic allocation of multicast addresses sufficient security features to prevent networks from being any less secure than networks which do not use zeroconf protocols the working group will define the requirements to provide these functions on two distinct network topologies 1 a single network segment where all hosts are reachable by link layer broadcast or multicast messages 2 a set of network segments on different ip subnetworks interconnected by a single router automatic configuration of an arbitrary topology of routers and subnets is out of the scope of the zeroconf wg charter the working group will also define how such a network may automatically transition from configured to unconfigured behavior as well as from unconfigured to configured that is the same hosts must be able to function on networks with no configuration as well as be capable of direct ip connectivity to the global internet including dns entries supplied through standard dns services it is also possible that both modes zeroconf and administered may coexist on the same network the modes may not be exclusive of each other when zeroconf networks or hosts which are configured using zeroconf protocols are connected to the big i internet they should not automatically become vulnerable to new security threats this wg will produce two documents the first describes the requirements for the configuration and security services defaults and mechanisms a node needs to fully participate on zeroconf networks and or configured networks the second which follows the first will detail a profile specifying which standards specifically satisfy zeroconf requirements the wg will also produce two protocol specifications first the wg will develop a document describing automatic generation and assignment of link local ipv4 addresses in environments lacking host configuration static or using dhcp the document will describe existing practice as well as define recommendations for future implementations second the wg will develop a profile of the address allocation protocol aap to provide zero configuration multicast address allocation support for ipv4 and ipv6 goals and milestones done submit internet draft to be considered as an informational rfc on requirements for zero configuration networking done submit automatic address configuration for ipv4 to be considered as a standards track rfc aug 01 submit multicast address allocation protocol for zeroconf networks to be considered as a standards track rfc aug 01 submit internet draft to be considered as an informational rfc on host profile for zero configuration networking internet drafts requirements for automatic configuration of ip hosts 46128 bytes dynamic configuration of ipv4 link local addresses 74691 bytes no request for comments ietf secretariat please send questions comments and or suggestions to email protected return to working group directory return to ietf home page