ifchk 1.0.8

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.
Source: ifchk 1.0.8