Dora (discover offer request recognition) process of obtaining IP address

Pictured , Our mobile terminal is connected Wi-Fi Sometimes there are the following and DHCP Two interactive processes of the server

In this figure, the two packets are the discovery packets of the client , and DHCP The message provided by the server

This picture shows the server that the client knows it wants to communicate with , So send request message and DHCP Confirmation datagram replied by the server