Implementation of prefix delegation mechanism using DHCPv6 protocol

IPv6 enables simple, automatic host configuration. Conversely, it does not provide any specification to automatically delegate a prefix to a router; to solve this problem several requirements were described and a solution using DHCPv6 protocol for those requirements was standardized. DHCPv6 protocol let DHCPv6 servers pass network configuration parameters to IPv6 nodes. DHCPv6 servers can pass IPv6 prefix delegation parameter to a requesting router by using IPv6 prefix option and requesting router which got the prefix from server can advertise prefix(es) derived from that prefix. To do this, we need DHCPv6 client/server supporting prefix delegation option and router advertisement daemon. In this paper, we implemented DHCPv6 client supporting IPv6 prefix option and for DHCPv6 server and router advertisement module we use open source project to test our s/w module.