Origin :-
The idea for MAC Filters for WiFi was taken from the wired networks.
The simplicity of spoofing MAC Address on any OS makes this very insecure.
Even then it works well for wired networks, except of course the insider attacks.
WiFi MAC Filters :-
Although this is not part of the 802.11 Standard, it is a Network Layer feature provided by the Access Point manufacturers.
Wireless MAC Filters allow only whitelisted MAC Addresses to connect to the AP.
Problem with MAC Filters :-
The WLAN Header field consist of the Clent MAC Addresses in plain text.
Hacking MAC Filters :-
Anyone who can sniff packets off the air, can read the MAC of a client.
This MAC can then be used to connect to the AP by MAC spoofing.
The idea for MAC Filters for WiFi was taken from the wired networks.
The simplicity of spoofing MAC Address on any OS makes this very insecure.
Even then it works well for wired networks, except of course the insider attacks.
WiFi MAC Filters :-
Although this is not part of the 802.11 Standard, it is a Network Layer feature provided by the Access Point manufacturers.
Wireless MAC Filters allow only whitelisted MAC Addresses to connect to the AP.
Problem with MAC Filters :-
The WLAN Header field consist of the Clent MAC Addresses in plain text.
Hacking MAC Filters :-
Anyone who can sniff packets off the air, can read the MAC of a client.
This MAC can then be used to connect to the AP by MAC spoofing.
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