Mac – DHCP Reservation vs Mac address filtering. Are they the same security

dhcpmac addressrouter

I am able to give an ip address to a wired/wireless device based on the mac address. Other automatic DHCP is turned off.

Is this as effective as a security measure as MAC filtering?

It just seems to be an extra step on MAC filtering. I dont know why the interfaces are not merged as one. Hence the question to make sure I do not make a security mistake.

Best Answer

  • No, using DHCP reservations will not be as effective; while your router won't assign a DHCP address to a device whose MAC address it doesn't know, this does nothing to prevent an attacker simply assigning himself a static IP address in your range, and the router will happily communicate with him.

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