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The Floor Plan

Lesson 42 of 46 in Coddy's IP Addressing and Subnetting course.

Time to plan a real network, start to finish. A company is moving into a new office and hands you the requirements in a text file: the teams, how many machines each needs, and the address block the ISP assigned.

Every network plan starts the same way: read the requirements and take inventory before touching a single subnet. How many networks do you need? How many hosts in total? Does the block even fit them?

Over this chapter you will size, carve, and gateway the whole thing.

Challenge

Easy

Inspect office.txt. Then print three lines:

The line of the file that names the assigned block (print it with grep)
The number of teams
The total number of hosts across all teams

Expected output:

Block: 10.20.0.0/23
4
183

Try it yourself

Terminal

All lessons in IP Addressing and Subnetting

1Bits and Binary

Numbers as Bits Binary to Decimal Powers of Two Recap - Binary Warm-up

4CIDR Notation

Goodbye Classes Reading CIDR Block Sizes Recap - CIDR Reading

7Special Addresses

Private Ranges Loopback Link-Local Zero and Broadcast

10Capstone - The Office

The Floor PlanSizing Each Team Carving the Block The Router's View Recap - Ship the Plan

2IPv4 Anatomy

Four Octets The 32-Bit View Network and Host Valid or Not Recap - Read an Address

5Inside a Subnet

Network Address Broadcast Address Usable Hosts First and Last Host Recap - Subnet Facts

8Planning Networks

Right-Sizing VLSM Step by Step Allocation Order Checking for Overlap Recap - Plan a Network

3The Subnet Mask

What a Mask Does Mask to Prefix Prefix to Mask ANDing It Out Recap - Mask Basics

6Subnetting Drills

The Block Size Trick Which Subnet Am I In Splitting a /24 Splitting Again Recap - Subnetting Drills

9IPv6 First Steps

Why IPv6 Reading IPv6 Prefixes in IPv6 Recap - IPv6 Basics

Practice on your own: Terminal playground