> IPv6 has massively increased the number of available IPs, > allowing every sensor and relay within a system to be > addressable from the public internet ...

> IPv6 has massively increased the number of available IPs, > allowing every sensor and relay within a system to be > addressable from the public internet ... which, while necessary for the IoT dream, is a very very very dangerous thing. Another downside of an upside is the idea of over-the-net updatable firmware for all devices in your house. The unfortunate flipside of easily-updated-by-the-vendor software is that the initial software will not be fully tested--"we can fix any 'little' bugs later"--and future releases will also not be adequately tested. Not to mention the glaring security hole when your entire house is run by devices and sensors that can be updated remotely. It's going to get messy...