Code for mac address filtering5/2/2023 It’ll certainly keep the casual or accidental connection from happening, which is fine as far as that goes but for true security, it’s actually pretty close to not having any at all.Ī MAC, or “Media Access Control” address, is a theoretically unique identifier assigned to every network interface card (often referred to as a “ NIC”, or network adapter).Įvery ethernet port on your PC 1, every wireless adapter, and even every Firewire or USB connection that might also be used for networking, is assigned a MAC address. At first, it sounded kind of intriguing, but ultimately it turns out to be kind of like a cheap padlock: it only keeps honest people honest. I do hear about MAC address filtering from time to time.
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