For several years, my house router was an old PC with several PCI ethernet cards, running Debian lenny. It took up space, consumed much more power than the job really demanded, and was very noisy. So I wanted to clone the system onto some more appropriate platform.
My first candidate was a second hand Soekris net4501. I got a long way into setting this up before deciding to abandon it (see below for the reasons why), and switched instead to a Fabiatech FX5624. I completed the job using this system and it’s now in service.