DHN

DHN, or Dynamic Host Configuration Protocol Network, is a network management protocol used to automatically assign IP addresses and other network configuration parameters to devices on a network. It is a client-server protocol, where the client is typically a device that needs an IP address, and the server is a DHCP server that assigns the IP address and other configuration parameters.

DHN operates on a lease basis, meaning that the IP address assigned to a device is only valid for a certain period of time. This period is known as the lease time, and it can be configured by the network administrator. When the lease time expires, the device must renew the lease from the DHCP server.

DHN is widely used in both small and large networks, including home networks, small businesses, and large enterprises. It simplifies network management by automating the assignment of IP addresses, reducing the need for manual configuration and minimizing the risk of IP address conflicts.

DHN uses the User Datagram Protocol (UDP) for communication between the client and the server. It operates on port 67 for the server and port 68 for the client. The protocol is defined in RFC 2131, which specifies the DHCP message format and the DHCP protocol operation.

DHN has several advantages over static IP addressing, including reduced network management overhead, improved scalability, and enhanced flexibility. However, it also has some limitations, such as the potential for IP address conflicts if not properly managed, and the need for a DHCP server to be present on the network.