Setting a NIC to run in promiscuous mode will allow it to see all network traffic passing through a network switch.

Question

Quizplus · Accepted Answer

Promiscuous mode allows a network interface card (NIC) to intercept and read every network packet that arrives in its entirety. However, in a switched network environment, a switch typically sends packets only to the destination port associated with the destination MAC address. Therefore, a NIC in promiscuous mode on a standard switch will not see all network traffic, but only the traffic that is destined for it or broadcast/multicast traffic.

Setting a NIC to Run in Promiscuous Mode Will Allow