what does dhcp do

DHCP automatically gives devices an IP address and other network settings so they can join a network without manual setup.

Quick Scoop

It stands for Dynamic Host Configuration Protocol.

When a phone, laptop, or printer connects to a network, DHCP can assign:

• An IP address.
• A subnet mask.
• A default gateway.
• DNS server addresses.

Why it matters

DHCP saves time for network admins and reduces configuration mistakes.

It also helps prevent two devices from accidentally using the same IP address.

In practice, it is the system that makes network connections feel automatic instead of manual.

Simple example

You connect to Wi‑Fi at a café.
Instead of you typing network settings by hand, the DHCP server hands your device an available IP address and the info it needs to reach the internet.

TL;DR

DHCP is the service that automatically configures devices on a network so they can communicate properly.