Hi, I have a large PC network (virtual & real machines) with a number of industrial PLC's also on it. I would like to find out how many of them are running a particular application.

Is there any app that I can run that can "sniff" the network machines and confirm how many and what pc's are running that particular app.

The app i trying to confirm is running relates to the industrial PLC network and too many copies of this application running “boggs” down comms between them / access to get online to a particular PLC via the Ethernet network. so I want to audit the network and shut down any apps that are not necessary.

Thanks in advance.