this post was submitted on 21 Feb 2026
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Science Memes

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[–] Grail@multiverse.soulism.net 6 points 2 days ago (2 children)

So if you plug the same device into a different network using the same port, it's the same MAC?

[–] MystikIncarnate@lemmy.ca 5 points 2 days ago (1 children)

The device mac doesn't change unless mac randomization is on.

[–] assa123@lemmy.world 3 points 2 days ago (1 children)

I hate that, as far as I know, on Android you can't choose the "randomized" MAC

[–] walden@wetshav.ing 2 points 2 days ago (1 children)

You want to pick your own MAC? At least you can set it to not be random for a specific network.

[–] assa123@lemmy.world 3 points 2 days ago (1 children)

Yes, by picking my own MAC as with my linux laptop I could share pre approved network access on both devices (although not at the same time)

[–] Test_Tickles@lemmy.world 4 points 2 days ago

And that is exactly why it's not allowed.

[–] Zagorath@aussie.zone 2 points 1 day ago

The MAC, at least as it was conceptualised (as they said, MAC randomisation etc. mess with this), is a unique identifier for that specific device. It doesn't change, and only one device has that specific MAC.

Or more specifically, that specific network adaptor, the hardware responsible for connecting to networks. So one computer might have multiple MACs if, for example, it has an Ethernet port and a wifi card.