Operation

As shown in Figure 64, stateless DHCPv6 operates in the following steps:

1. The DHCPv6 client multicasts an Information-request message to the multicast address of all DHCPv6 servers and DHCPv6 relay agents. The Information-request message contains an Option Request option, specifying the configuration parameters that the client requests from the DHCPv6 server.

2. After receiving the Information-request message, the DHCPv6 server returns the client a Reply message containing the requested configuration parameters.

3. The client checks the Reply message. If the obtained configuration parameters match those requested in the Information-request message, the client performs network configuration with the parameters. If not, the client ignores the configuration parameters. If multiple replies are received, the first received reply will be used.