DHCP stands for Dynamic Host Configuration Protocol. It is an application layer protocol.

Every computer on a TCP/IP network must be given a unique computer name and IP address. DHCP specifies methods for dynamic configuration of computers on TCP/IP networks. DHCP is designed to simplify and reduce the configuration and administration of computers on the network.
The main category is for general information about the protocol. Sites about implementations of the standard should go to the Implementations subcategory.