The hardware has the ability to tag packets with certain contents - this is used for more interesting Wake-on-LAN policies (eg, rather than requiring a magic pa

The hardware has the ability to tag packets with certain contents - this is used for more interesting Wake-on-LAN policies (eg, rather than requiring a magic packet, you could have a web server that aggressively suspends and then gets automatically woken when there's an incoming packet to port 80 or 443). In the AMT case, it identifies incoming packets that are aimed at the AMT ports and passes those off to the ME rather than the OS. If you want to speak to AMT from the host OS, you install an app that listens to those ports on localhost and then tunnels the traffic through the HECI interface instead. There's only one IP address and one MAC address, and it's limited to built-in Intel NICs.