DHCP

DHCP(Dynamic Host Configuration Protocol) is a protocol for assigning IP addresses to a device on the network. The way it works is that the client sends a broadcast request looking for a DHCP server to answer. the router then sends the message to the correct DHCP server. After that the server sends a request packet to let the server know that it is going to use the selected address. The final step is that the server sends a ACK (Acknowledgment Code) packet to the server to tell it that the client has been given an address for a certain period of time.