Curriculum
Course: CompTIA-Network+ (includes Official Labs)
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Curriculum

CompTIA-Network+ (includes Official Labs)

Course Overview

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Module 1

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Module 2

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Module 3

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Module 4

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Module 5

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Module 6

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Text lesson

Lesson 4.1 Internet Protocol Basics

The Transmission Control Protocol/Internet Protocol (TCP/IP) suite consists of complementary protocols and standards that work together to provide the functionality of the vast majority of modern networks. The Internet Protocol (IP) stands at the heart of this protocol suite, providing logical addressing and packet forwarding between different networks. In this topic, you will start to investigate the characteristics of IP by examining the structure of IPv4 packets, the format of IPv4 addresses, the differences between unicast, broadcast, multicast, and anycast addressing schemes.

 

As you study this lesson, answer the following questions: 

  • What headers does IPv4 use for addressing and forwarding?
  • What is the purpose of using logical network addressing at layer 3?
  • How does addressing between layer 2 and layer 3 work?
  • How does a host address multiple destination hosts efficiently?

There are two versions of IP; version 4 is more widely adopted and is the version discussed in the following few lessons. IPv6 introduces a much larger address space and different means of configuring clients and is discussed later in the module.