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DHCP: what is it?

DHCP stands for Dynamic Host Configuration Protocol.

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol used to automatically assign IP addresses and other network configuration parameters to devices on a network. DHCP allows devices such as computers, smartphones, and servers to be connected to a network and automatically receive an IP address, subnet mask, default gateway, and other necessary information for communication on the network.

When a device connects to a network, it sends a broadcast message requesting an IP address. A DHCP server on the network listens for these requests and assigns an available IP address to the device, along with the necessary network configuration information. The DHCP server keeps track of which IP addresses are assigned to which devices, and manages the distribution of IP addresses to prevent conflicts.

DHCP is commonly used on home networks, as well as on enterprise networks and in large organizations, as it simplifies the process of configuring devices and eliminates the need for manual assignment of IP addresses. DHCP is particularly useful for environments where the number of devices is constantly changing, such as in a hotel, a university campus or in a big company where new devices are added frequently.

It's important to note that DHCP is not a secure protocol, it is vulnerable to spoofing and other forms of attacks. As a result, many networks use DHCP in conjunction with other security measures, such as firewalls, to protect against unauthorized access

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