Recently, we saw what happened with the botnet attack on Dyn, but instead, let’s talk about a fine day on a happy Beatrix Potter-like Internet, shall we? We start on your local network: your DSL modem (or cable box) is your residential gateway. There’s a little hedgehog inside, helping the hamster in your computer fetch those silly cat photos from the Internet. The problem: your ISP ships you a pretty sad hedgehog inside that residential gateway.