DHCPv6
Overview
The Dynamic Host Configuration Protocol (DHCP) for IPv6 is a network management protocol used on IPv6 based networks. A DHCPv6 server dynamically assigns an IPv6 address and other network configuration parameters to each device on a network so they can communicate with other IP networks. See this DHCPv6 Wikipedia article for a detailed overview of how DHCPv6 works.
Note that Zephyr only supports DHCPv6 client functionality.