Typical Networking of the DHCPv6 PD Client
Figure 1 shows a typical networking of the DHCPv6 PD client.
The DHCPv6 PD client function is configured on the device, the device dynamically obtains IPv6 addresses and other network configuration parameters from the DHCPv6 PD server. This operation facilitates user configurations and centralized management. The device divides the obtained IPv6 prefix (the length of the obtained prefix is smaller than 64 bits) into 64-bit prefix of subnet segments and sends an RA message on the link that hosts directly connect to. The RA message contains 64-bit prefix of subnet segments. This enables hosts to automatically configure addresses.