Cisco CloudCenter: Get the Hybrid IT Advantage

Dynamic Host Configuration Protocol (DHCP)

Definition - What does Dynamic Host Configuration Protocol (DHCP) mean?

Dynamic Host Configuration Protocol (DHCP) is a network management protocol used to dynamically assign an IP address to any new node entering the network. DHCP permits a node to be configured automatically, thereby avoiding the necessity of involvement by a network administrator.

DHCP does the following:

  1. Manages the provision of all the nodes added or dropped from the network
  2. Maintains the unique IP address of the host using a DHCP server
  3. Sends a request to the DHCP server whenever a client/node, which is configured to work with DHCP, connects to a network. The server acknowledges by providing an IP address to the client/node.

Dynamic Host Configuration Protocol is also known as RFC 2131.

Techopedia explains Dynamic Host Configuration Protocol (DHCP)

DHCP is an automated method by which any newly added or transferred node in a network can be assigned or reassigned an IP address instantly. Without DHCP, the network administrators would be forced to assign IP address manually for every node in a network.

A DHCP server has many duties:

  1. A DHCP server is configured to manage the provision of IP addresses and is an essential requirement to run DHCP protocol. The server manages the record of all the IP addresses it allocates to the nodes. If the node rejoins or is relocated in the network, the server identifies the node using its MAC address. This helps to prevent the accidental configuration of same IP address to two different nodes.
  2. For DHCP to operate, the clients need to be configured with it. When a DHCP-aware client connects to the network, the client broadcasts a request to the DHCP server for the network settings.
  3. The server responds to the client’s request by providing the necessary IP configuration information.
  4. The DHCP server is ideally suited in scenarios where there is a regular inclusion and exclusion of network nodes like wireless hotspots. In these cases, the DHCP server also assigns a lease time to each client, after which the assigned IP address in invalid.
Share this:

Connect with us

Email Newsletter

Join thousands of others with our weekly newsletter

The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.