I'm talking about routers, from the big devices in your datacentre/telco down to your dsl or cable home gateway. There's only a limited amount I can say about t

I'm talking about routers, from the big devices in your datacentre/telco down to your dsl or cable home gateway. There's only a limited amount I can say about this ( at least, without having to think hard about I am allowed to say) but there really is a lot of silicon out there that knows what the layout of an IP packet is.