TCP$/$IP model

IP address

$4$

NAT

TCP

IP

$1.$

Contains standards rather than a theoretical approach to data transfer.

$2.$

Defines how applications can create channels of communication across a network.

$3.$

Defines how to address and route each packet.

$4.$

Sends information in the form of packets.

$5.$

A translation and virtualization of IP addresses that improves security and decreases the number of IP addresses required of an organization.