Subnetting in Your Head

Learn a four-step method for determining IP ranges and broadcast addresses without the use of subnet calculators or binary translation.

Introduction

• Welcome
• What you should know
• Exercise files

1. Benefits of Subnetting in Your Head

• Certifications and certification tests
• Confidence and troubleshooting

2. DNA of IP Addressing

• DNA of an IPv4 address
• IP address assignment history
• Class A addresses
• Class B addresses
• Class C addresses
• Non-routable addresses

3. Four-Step Subnetting Method

• Methodology overview
• The four-step method
• Class C example: Steps 1–3
• Class C example: Step 4
• Class B example: Steps 1–3
• Class B example: Step 4
• Class A example: Steps 1–3
• Class A example: Step 4

4. Subnetting in Action

• Troubleshoot IP topology
• IP topology demo
• Troubleshoot IP host address range

5. Audio Guides

• Four-step process
• Find subnet address from a host address
• Determine subnets from an address

Conclusion

• Next steps