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A comment on Why couldn't MAC addresses be used instead of IPv4|6 for networking?. Parent comment

Re:Why couldn't MAC addresses be used instead of IPv4|6 for ... by kruk on Wednesday July 25, 2012 @10:27PM (#4294089)
MAC and IP are in two different layers of OSI model and while both are technically addresses, they are independent of each other and their role is different. Not every network uses IP addressing and not every device has a MAC address.
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