title	date	author	id	keywords
Types of IPv4 communication	2026-07-01 19:24	Lee Kierstead	1782955474	networking

There are types of communication when it comes to network packet transmission.

Unicast

One-to-one, separate packets per device.

• Doesn't scale well
• Link (cable) can get taxed

Broadcast

One-to-all (in a subnet). Sends one packet, and it goes everywhere.

• Devices that don't want or need a packet, get one anyway.

Multicast

One-to-many. This is sort of a subscription model.

• Sends to specific recipients who asked for it
• Sine packet is duplicated and sent to each