1. Chapter 15 - IP: Software To Create A Virtual Network
Introduction
Protocol: An Agreement For Communication
Basic Functionality: The Internet Protocol
IP Software On Every Machine
Because all Internet services use the Internet Protocol, a computer must have IP software before it can use the Internet.
Internet Packets Are Called Datagrams
Each packet sent across the Internet must follow the format specified by the Internet Protocol. Such packets are called IP datagrams.

2. Chapter 15 - IP: Software To Create A Virtual Network
The Illusion Of A Giant Network
The Internet operates like a single network that connects several million computers. IP software allows any computer to send an IP datagram to any other computer
The Reality Of Internal Structure
Datagrams Travel In Packets
Every Computer Is Assigned A Unique Address
Internet Addresses (IP addresses) :
An Odd IP Address Syntax
IP Addresses Are Not Random

3. Chapter 15 - IP: Software To Create A Virtual Network
An Example Trip Through The Internet (use tracert from the command line: ex. tracert jaring.nmhu.edu)
IPv4 (current protocol) vs. IPv6 (new protocol which allows more addresses and includes additional security features)
Terms
IP datagram
Internet Protocol (IP)
IP address
network packet
protocol
virtual network