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DHCP: Dynamic Host Configuration Protocol

DHCP is a protocol used by networked devices to obtain various parameters necessary for the clients to operate in an Internet Protocol (IP) network. By using this protocol, system administration use to added IP automatic to the network with minimal and no need manual configurations.

What is DHCP purpose ? 

The overall purpose of this is to reduce the work necessary to administer a large IP network. The most significant piece of information distributed in this manner is the IP address.

• dynamic allocation: A network administrator assigns a range of IP addresses to DHCP, and each client computer on the LAN has its IP software configured to request an IP address from the DHCP server while connect to network by cable or wi-fi.



• automatic allocation: The DHCP server permanently assigns a free IP address to a requesting client from the range defined by the administrator.
• manual allocation: The DHCP server allocates an IP address based on a table with MAC address - config by administrator. Only requesting clients with a MAC address listed in this table will be allocated an IP address.

Note: We can setup DHCP from hardware equipment and also PC Server.

What is IP address ? 

An IP address (short name is IP number) is a number (sample IP address 192.168.0.1) which uniquely identifies a computer that is making use of the Internet or in the Network