014.01.54.1. How did the evolution of broadband usage lead to the demand for routers, and why did Linux users, in particular, often opt to set up an extra machine running NAT as a router?
With the evolution of broadband, users demanded to share a single broadband connection with their own networks, and Linux users started setting up an extra machine to use as a Router running NAT.
As people used the internet more, they wanted to share it among devices. Linux users often set up an extra machine to control and customize this sharing using NAT as a router.