Ifchk is a network interface promiscuous mode
detection tool that reports on the operational
state of all configured interfaces present on
the system. In addition, it will disable those
interfaces found to be promiscuous if told to do
so. Per-interface statistics can also be
displayed, allowing administrators to perform
traffic trend analysis, which could be an aid in
the identification of possible inconsistencies
or spikes in network traffic volume that may
warrant further investigation.