I've been tasked with doing a network diagram of our offices (8 in total) across two different cities. Our network is all on a single flat subnet (10.1.X.X / 255.0.0.0) and all sites are connected ...

Sadly, this tool was removed some time ago. Even so, it is possible to create a detailed network diagram using only Windows 11 and Microsoft Office (including tools such as Excel and Visio).

Visio is a handy tool for creating network diagrams, but it doesn't include every conceivable type of shape. Here's how to create your own custom shapes in Visio.

Here are some of the best free Network Diagram and Design software for designing your network on Windows 11/10.