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Do internal modems have MAC addresses?

April 26, 2017addresses Internal Mac modems

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Do internal modems have MAC addresses?

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No. Only IEEE802.3 hardware interfaces (often called ‘ethernet’, though technically different) have a MAC address. A dial-up modem typically uses ppp, an IETF-specified means of implementing the upper layers (TCP/IP) on a modem connection which does not use IEEE802.3 hardware. Similarly, a cable modem uses a non-802.3 hardware interface on the cable-side connection and therefore has no MAC address on that interface. MAC is only for physical layer IEEE802.3-compliant hardware interfaces.