April 30, 2026

Point-to-Point Links: /30 vs /31 vs Unnumbered

A plain-language guide to addressing point-to-point network links. When to use a /30, when to use a /31, and when to skip numbering altogether.

April 24, 2026

Designing an IP Plan from Scratch: A Worked Example

A long-form, plain-language tutorial that designs a complete IP address plan from scratch using a fictional mid-size company. Covers aggregation, site allocation, VLAN conventions, cloud carving, and when to use a VRF.

April 16, 2026

The 10 Reserved IP Ranges Every Network Engineer Should Know

A plain-language reference to the 10 IP address ranges set aside for special use: private networks, carrier-grade NAT, loopback, link-local, documentation, multicast, and more.

April 9, 2026

IP Address Management for Multi-Cloud and Hybrid Networks

How to track and manage IP address space across AWS, Azure, on-premises data centers, and colocation facilities from a single source of truth.

April 2, 2026

5 Signs You've Outgrown Manual IP Tracking

Still managing IP addresses in a spreadsheet? Here are five clear signs your team has outgrown manual IP tracking and needs a real IPAM solution.

March 26, 2026

Automating IP Allocation with the IPCraft API

A hands-on tutorial for automating IP address management with curl, Terraform, and Ansible using the IPCraft REST API.

March 19, 2026

Subnetting Made Simple: A Visual Guide to CIDR Notation

A plain-language guide to how IP addresses are divided into networks, what the /24 actually means, and how to pick the right subnet size.

March 12, 2026

Why Your Team Is Still Using a Spreadsheet for IP Management (And What It's Costing You)

Spreadsheets were never designed to manage IP addresses. Here's what that workaround is actually costing your team in time, mistakes, and outages.

March 5, 2026

VLANs vs VRFs: When You Need Overlapping Address Space

A plain-language guide to VLANs and VRFs, when you need each, and how they let you reuse the same IP ranges safely across different parts of your network.