 to be able to talk to the gateway and say, I know who you are, you're okay to be here, and let's talk. This IP has this, what's the other word, I can't say, subnet, whatever, all that stuff, but it all has to talk to each other. And it has to know that it exists, and it has to know that it's okay to be there. All these modules on the cars now, with the cars basically being a computer network, since...