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A Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.

2 votes

Defamatory post - obtaining evidence tracing perpetrator right to his laptop

MAC addresses are link-level addresses - a series of 6 bytes (12 hexadecimal letters 02:46:8a:ce:fd:b9) that only get sent to the direct router at the other end of the connection (e.g., on ethernet th …
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22 votes

Is MAC address filtering effective on a wifi router?

MAC address filtering is a very weak form of wifi protection: the MAC addresses of your devices can be easily eavesdropped with tools like wireshark the MAC addresses of their devices can be easily …
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9 votes
Accepted

Cannot identify or block unknown MAC addresses

Four possibilities come into mind for your slow internet. Your neighbors are using your wifi (e.g., you are using weak security on your router like WEP or are using very weak guessable passwords - w …
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