About

The IP protocol is a Network layer protocol (level 3 of OSI) that:

• gets data and transports them in one or more ip packet.
• is used by protocols like UDP and TCP (known also as TCP/IP).

Example

TCP/IP sends a TCP packet known as segment:

• which is carried in one or more IP packets by the IP protocol
• which are each carried in one or more Ethernet packet known as frame by the ethernet

Internet protocol suite (TCP/UDP)

The internet protocol suite (TCP and UDP) uses it as the transport layer.

• TCP sends Segment packet to the IP protocol.
• UDP sends Datagram packet to the IP protocol.

List

• IP name
• IP address

A host can have several IP addresses and IP names, but it can only have one host name

ICMP

The Internet Control Message Protocol (ICMP) are message used to exchange information (error) in the Internet Protocol (IP). ¹⁾