Do you have any other questions about DHCP? DHCP was standardized in 1993, and it continued to receive improvements since then. BOOTP servers could automatically assign IP addresses on more than one subnet.ĭHCP was born out of BOOTP but was also able to dynamically assign IP addresses from a specified range, as well as reclaim them when no longer used ( DHCP lease time), and provide other configuration options to network computers and devices such as the IP addresses of the gateway or the DNS servers. However, RARP was difficult to implement and configure, so it was soon improved (in 1985) into another network protocol called BOOTP (Bootstrap Protocol). RARP allowed computers without disk drives (called diskless workstations - they booted by loading an operating system directly from a central server) to automatically receive IP addresses. Its history starts back in 1984, when the Internet Engineering Task Force (IETF), which is the internet's standards authority, created a network protocol called Reverse Address Resolution Protocol (RARP). Who invented DHCP?Īlthough you know now why DHCP was invented and what it's used for, you might also be wondering about how DHCP came to life and who invented it.
In conclusion, DHCP lease time is a feature that allows DHCP servers to reclaim unused IP addresses after a specified period of time passes. Finally, the DHCP server/router marks the designated IP address as being occupied and in use by the computer or device that requested it, which now can communicate with the other devices on the local network and access the internet if it's available.This message is called DHCP acknowledgment and contains all the other configuration information needed to grant network/internet access to the computer or device, such as the gateway and DNS servers.
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As soon as the DHCP server/router identifies a free IP address, it sends it to the computer or device that requested it. The DHCP service on the server/router looks into the available IP addresses that have not been claimed by other computers and devices.
When a computer or device in a network wants to connect to others and communicate with them, either locally or on the internet, there are a few things that take place in a matter of moments:
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Automatic (DHCP) IP address on a Windows 10 PC
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