Unity: We have to charge for every install because we only see totals. Also Unity: We can tell which install is which, so you won’t be overcharged.
My phone at least has a setting where I can choose what it does regarding a MAC address.
It can either use a randomised MAC address or it can use the MAC address of the router itself (can’t really see why you’d ever want to do that). So while I am sure traditionally the MAC address comes from the network card it’s clearly not the only way to derive one.
Also I’m almost positive that I went to change my graphics card and that changed my MAC address. It was years ago so I can’t remember the details but I remember it causing some problems with some work software until I realised that’s what had happend and just remapped the licence.
The MAC address is the Ethernet address of a network card endpoint, whether fixed or not. Multiple network cards, multiple MAC addresses. A single network card can also respond to more than one MAC address, or use randomized ones like in the case of your phone. They still tend to come with a factory fixed one, that is just used as a default when nothing else is changing it.
it can use the MAC address of the router itself (can’t really see why you’d ever want to do that)
That’s… are you sure is what it says? There are MDM managed networks where a router can push an MDM profile to a device, and set its MAC that way, maybe it’s something like that?
A graphics card “shouldn’t” have a MAC address… unless it has an output which can push Ethernet traffic (FireWire, HDMI HEC, etc.). A bit weird to have a licence locked to the GPU’s whatever-port MAC, but possible.
