中和刘: > > when a user visit my website, it's easy to get the ip address of the > user, but i think IP address is not as stable as mac address, so I > hope I can get the mac address of the user according to its IP > address, is it possible? thanks
No, it's not possible. Ethernet frames aren't routed on the internet.
You cannot even be sure that your users connect using Ethernet on their
end.
Usually, HTTP-cookies are used as a solution for your problem.
J.
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