Rapid assignment involving two messages
As shown in Figure 68, rapid assignment operates in the following steps:
The DHCPv6 client sends to the DHCPv6 server a Solicit message that contains a Rapid Commit option to prefer rapid assignment.
If the DHCPv6 server supports rapid assignment, it responds with a Reply message containing the assigned IPv6 address/prefix and other configuration parameters. If the DHCPv6 server does not support rapid assignment, Assignment involving four messages is performed.
Figure 68: Rapid assignment involving two messages
