In networking terms, a computer having
its network interface card set to
Â“promiscuous modeÂ” receives all packets on the same network segment. In Â“normal
mode,Â” a network card accepts
only packets addressed to its MAC
When the network card is in Â“promiscuous mode,Â” it not only
accepts all of the packets on the same network segment but also passes them to
the OS. This process is helpful for capturing passwords, monitoring networks,
and finding malicious packets. Using sniffers, system administrators routinely check whether any network
interfaces are set to Â“promiscuous modeÂ” to discover possible intrusions.
Administrator; Ethernet; Message Authentication Code (MAC); Message
Authentication Code (MAC) Address; Network; Password.
Eyeonsecurity. About SniffersÂ—Their (ab)use in Networks. [Online, 2004.]
Eyeonsecurity Website. http://eyeonsecurity.org/articles/sniffers.html.