Re: Hardcoded root?!
I tend to regard ISP-supplied CPE with a fair amount of suspicion.
As a customer of Virgin Media, and blessed with their shitbag Hub 3, I can understand why. Unfortunately for most high speed broadband providers the ISP offers no choice of modem, and the bimbling idiots of Ofcom turn a blind eye to the EU rules requiring that ISPs provide a choice of terminal equipment.
Yet another reason to shut down the Ofcom Home for the Useless, and turn them all out onto the streets (ideally from a third floor window).