Dynamic Host Configuration Protocol (DHCP) is a service most networks, and especially large ones, use. The DHCP service allows automatic configuration of all network hosts which support DHCP.
On the DHCP server, we usually configure the network parameters, which include IP address range assigned to the hosts, Gateway (or router), DNS server(s) and a few more. These parameters are then passed down to the host as if you manually configured it.
The process that describes DHCP is what I like to call "DORA" and here's the explanation:
Let's now take each one and briefly explain what happens:
- Discover: The host will initially send a broadcast in an attempt to discover a DHCP server on the network.
- Offer: The DHCP server will 'see' the workstation looking for the DHCP service and respond with an 'offer', which is an IP address.
- Request: The client will receive the 'offer' and, in most cases, will accept it. This means it sends an 'official request' for the same IP address offered previously by the server.
- Accept: The DHCP server will complete the transaction by sending an 'accept' message and marking the particular IP address for the specific host.
I hope the above covers you completely!
Dig deeper on LANs (Local Area Networks)
Related Q&A from Chris Partsenidis1
What is the difference between a circuit switching and packet switching? Our networking fundamentals expert gives examples of packet switching and ...continue reading
Learn how to build a database server farm using different topologies, from network fundamentals expert Chris Partsenidis.continue reading
Understand how TCP/IP and HTTP protocols are related in this networking fundamentals expert response.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.