Configuring DHCP

DHCP

Dynamic Host Configuration Protocol, a network protocol used to automatically assign IP addresses to devices.

DHCP Scope

A range of IP addresses that the DHCP server can assign to clients on a network.

Subnet Mask

A 32-bit number that divides an IP address into network and host portions.

Lease Duration

The amount of time an IP address is assigned to a device before it must be renewed.

Address Reservation

A DHCP feature that allows a specific device to always receive the same IP address.

T1 Timer

The timer set to 50% of the lease time, when a device attempts to renew its DHCP lease.

T2 Timer

The timer set to 87.5% of the lease time, when a device attempts to find any available DHCP server to renew the lease.

DHCP Options

Additional settings configured in DHCP, such as DNS servers, gateways, or specific services.

Voice Over IP Server

A server that facilitates voice communication over the internet; often configured in DHCP options.

Static DHCP Assignment

A method to ensure a device always receives the same IP address from the DHCP server.

Dynamic Addressing

Assigning IP addresses from a pool of addresses that changes over time based on DHCP lease.

Request For Comments (RFC)

Documents that describe the standards and protocols for the internet, including DHCP options.

Address Pool

The total range of IP addresses available for assignment by a DHCP server.

Vendor Extensions

Early term used for DHCP options during the BOOTP days, referring to specific add-ons.