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"Everything has the same IP?!"

You plugged in a second router and now nothing works. Both routers think they're 192.168.1.1. Your laptop doesn't know which one to talk to. Welcome to IP address conflicts.

Before adding any more devices, you need an IP addressing plan — a simple document that says "this device gets this address, this network gets this range."

It sounds boring. It is boring. But skip it now and you'll spend days debugging mysterious connectivity issues later.

Work in Progress

This section will cover the basics of IP addressing, subnetting, and how to create a simple addressing plan for a community network.

Guide reference

For a detailed walkthrough of IP addressing and subnet planning, see Guide — IP Addressing.