Lesson 4 - Dynamic Host Configuration Protocol (DHCP)

Dynamic Host Configuration Protocol (DHCP)

A network management protocol used on IP networks to automatically assign IP addresses and communication parameters to devices using a client-server architecture

Why use DHCP

Without DHCP, IP addresses must be configured manually; DHCP eliminates manual configuration errors and reclaims unused addresses automatically.

What a DHCP server store in its database

Valid TCP/IP configuration parameters.

What a DHCP client receive

A valid IP address for the subnet and DHCP options (e.g., Router, DNS Servers).

How DHCP Works - Client-Server Model

Central DHCP server and client instances on devices.

How DHCP Works - Client Request

Device requests network parameters (e.g., IP address).

How DHCP Works - Server Response

DHCP server provides the requested parameters.

How DHCP Works - Dynamic IP Configuration

Eliminates manual device configuration.

Scopes of IP Address Pools

Range of IP addresses a DHCP server can lease to clients

Lease Duration of IP Address Pools

Time an IP address is held for a client