DHCP stands for dynamic host configuration protocol. That’s a standardized network protocol that Internet protocol, or IP, networks use. A DHCP server is what controls the DHCP, so a DHCP server can dynamically distribute various network configuration parameters. These include IP addresses, and the configuration parameters of the network can be distributed for both services and interfaces.
Both residential gateways and routers can be enabled in ways that let them act as DHCP servers. That lets computers have the power to automatically request both networking parameters and IP addresses. That reduces any needs for network administrators or users to manually configure such settings. When there is no DHCP server, every computer or device on a particular network must have their IP addresses assigned manually.
TCP/IP is what defines how the devices of a distinct network communicate with the devices of a different network. A DHCP server is able to manage the TCP/IP settings for the devices of the network. It can do this by either dynamically or automatically assigning the IP addresses to every device. By 2011, DHCP was being used in networks as diverse as home networks, larger campus networks, and even regional ISPs.You can see here Configuring a DHCP Server.
Many network routers designed for residential use get a globally-distinct IP address inside the provider’s network. Inside of a local network, the DHCP server can assign local IP addresses to each and every device that gets connected to that network.
DHCP operates on a client-server model. When any device, computer or otherwise connects to the network in question, the designated DHCP client software puts out a broadcast query to request the needed information. Any of the network’s DHCP servers can service such a request.
The DHCP server typically manages a comprehensive pool of various IP addresses and their information regarding client configuration parameters. These can include time servers, name servers, domain names, and default gateways. Once a request is received, a server might respond with particular information about every client, as an administrator might have previously configured.
It might also respond with a particular address and additional information that’s valid for a whole network as well as the time period in which a lease or allocation is considered valid. Clients typically send queries for such information immediately following a booting action. They also happen periodically following this prior to the information expiring.
When DHCP clients refresh assignments, the same parameter values might get requested again. Having said this, a DHCP server might assign new addressed based on any assignment policies that administrators set.
There’s far more involved with DHCP servers than can possibly be listed or delved into in a short article, but this is a quick overview of their broad applications. The highly technical nature of them make them hard to explain to those that aren’t that familiar with computers, networking, or information technology, but DHCP servers and the protocols surrounding them are what make it possible for many people to play video games online with friends, watch cat videos on YouTube, and binge-watch Netflix shows.