The usual way is to use arp cache poisoning between the devices you want to listen in on. Basically you tell each of them that you are the other so they send you their traffic and you sniff it and pass it on. Or you get access to a switch and change your port to a span port then listen to everything.
Could you please tell how this is done? Or is this only possible on professional grade Cisco switches, and can't be used if connected to the hub part of a wifi router?
Sniffer Problem
in Security
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Could you please tell how this is done? Or is this only possible on professional grade Cisco switches, and can't be used if connected to the hub part of a wifi router?