Application environment

As shown in Figure 54, the DHCPv6 server assigns the DHCPv6 client an IPv6 prefix to facilitate IPv6 address management and network configuration. After obtaining the IPv6 prefix, the DHCPv6 client sends an RA message containing the prefix information to the subnet where it resides, so that hosts on the subnet can automatically configure their IPv6 addresses by using the prefix.

	NOTE: A switch serving as a DHCPv6 server assigns DHCPv6 clients IPv6 prefixes, but not IPv6 addresses, and supports DHCPv6 stateless configuration to assign other configuration parameters.