The cable companies need to be able to push firmware and settings to maintain the network and avoid abuse. So they have certification standards and you need to pay to play.
For example, with DOCSIS 2 modems, you could spoof the MAC address and make some config changes and get anonymous internet access at the highest service tier.
For example, with DOCSIS 2 modems, you could spoof the MAC address and make some config changes and get anonymous internet access at the highest service tier.