When a host is running IPv6, it can obtain an IPv6 address by using stateless address autoconfiguration or the DHCPv6 protocol. IPv6 Dynamic Host Configuration Protocol DHCPv6 (Dynamic Host Configuration Protocol for IPv6) adopts the client/server communication mode and is designed for the IPv6 addressing scheme to assign IPv6 addresses and other network configuration parameters to hosts.
What is DHCPv6
DHCPv6 can assign IPv6 addresses and other network configuration parameters to hosts, and can realize centralized management of these parameters.
When a host is running IPv6, it can obtain an IPv6 address by using stateless address autoconfiguration or the DHCPv6 protocol.
When the host uses the stateless address automatic configuration scheme to obtain an IPv6 address, the router does not record the IPv6 address information of the host, which is poor in manageability; in addition, the IPv6 host cannot obtain network configuration information such as the DNS server address, and there are certain defects in usability .
DHCPv6 is a stateful address auto-configuration protocol. During stateful address configuration, the DHCPv6 server assigns a complete IPv6 address to the host and provides other configuration information such as the DNS server address. In addition, the DHCPv6 server can also centrally manage the allocated IPv6 addresses and clients.