IPv4 Network Addressing (N10-009)

Welcome to the IPv4 Network Addressing practice lab. In this module, you will be provided with the instructions and devices needed to develop your hands-on skills.

IPv4 network addressing encompasses critical aspects of network configuration. It includes IPv4 address classes as defined by RFC1918, which defines private IPv4 address spaces such as Class A (10.0.0.0/8), Class B (172.16.0.0/12), and Class C (192.168.0.0/16). Furthermore, in IPv4 network addressing, subnetting and Classless Inter-Domain Routing (CIDR) allow for efficient utilization of IP addresses by dividing networks into smaller subnetworks, enabling granular control over routing and addressing between the subnetworks.

Automatic Private IP Addressing (APIPA) assigns temporary IP addresses within the range of 169.254.0.0 to 169.254.255.255 when DHCP servers are unavailable to provide automatic IPv4 addresses and machines are configured for DHCP addressing.

Loopback addressing reserves the IP address range 127.0.0.0/8 for self-testing and local communication within a device. These components form the foundational framework for IPv4 network addressing, enabling the allocation of IP addresses within small and enterprise-level networks.

In this module, you will explore each of the concepts.

Overview

Learning Outcomes:

In this module, you will complete the following exercises:

  • Exercise 1 – APIPA Addressing
  • Exercise 2 – Subnetting
  • Exercise 3 – The Loopback Address

After completing this module, you should be able to:

  • Investigate network adapter configuration.
  • Check APIPA connectivity.
  • Assign static IP addresses.
  • Conduct subnetting.
  • Ping and articulate the loopback address range.

Exam Objectives:

The following exam objectives are covered in this module:

1.7 Given a scenario, use appropriate IPv4 network addressing

  • Subnetting
  • IPv4 address classes
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