What is DHCP and what it is used for?

Asked 08-Oct-2018
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The Dynamic Host Configuration Protocol (DHCP) is a network management protocol that assigns the IP address and other information to each host on the network dynamically so that they can communicate effectively. DHCP automates and centralizes IP address issuance, making network administration easier. DHCP assigns the subnet masks, default gateway, domain name server (DNS) address, and other configurations to the host in addition to the IP address, making the job of the network administrator easier.

DHCP works at the application layer to dynamically assign an IP address to a client by exchanging a series of messages known as DHCP transactions or DHCP conversations.
The DHCP client sends out broadcast messages to find DHCP servers. If any subnet broadcast addresses are set, the client computer delivers a packet with the default broadcast destination of 255.255.255. The broadcast address 255.255.255.255, which signifies 'this network,' allows you to send a broadcast packet to the network to which you're connected.