DHCP
Dynamic Host Configuration Protocol
A system that automatically assigns IP addresses to devices connecting to a network.
In Simple Terms
DHCP is a system that automatically handles the network settings needed when you connect a smartphone or computer to the internet. Without this system, you'd have to manually enter detailed numerical settings every time you connect to a network in a new location. The reason you can just connect to Wi-Fi and get online right away is that this system is working behind the scenes.
Behind the Name
The name "DHCP" comes from combining the initials of "Dynamic," "Host," "Configuration," and "Protocol." It reflects the idea of a protocol that handles network configuration automatically and "dynamically" each time a device connects.
Take a Closer Look!
DHCP is a system that automatically assigns connection information, such as an IP address, to devices connecting to a network so they can access the internet.
Thanks to this system, we can easily use a network without having to worry about complicated settings.
To put it simply, DHCP plays a role similar to a "hotel front desk" in the world of networking.
When a new smartphone or computer arrives, it assigns an available IP address — a kind of connection number — so the device can start using the network.
Without this role, there would be chaos over which device uses which number.
Specifically, a device known as a DHCP server (such as a home Wi-Fi router) receives requests from devices connecting to the network and automatically hands out configuration information.
Once an IP address is no longer in use, it's automatically reclaimed and reused for the next device that connects, making efficient use of a limited pool of addresses.