Definitions for "Promiscuous Mode"
The MAC interface on the device that will record/capture ALL packets on the collision domain, regardless to the fact that the packet may NOT be destined to this MAC.
Normally an Ethernet interface reads all address information and accepts follow-on packets only destined for itself, but when the interface is in promiscuous mode, it reads all information (sniffer), regardless of its destination.
A mode of operation where a device receives every frame on the LAN, regardless of destination address.