Is there any kind of network monitoring crate out there? With "network monitoring" I mean a crate which can tell me which app on which device sent and received which amount of data over the home network. Usually, there are three Android smartphones and two Windows 7 laptops connected. Are there any crates which can do that? I couldn't find any, but I don't know which keywords I should use to search.
If there isn't a crate already and somebody feels that it would be a useful crate, I would like to team up to develop it. Only snag: my programming skills are limited to small academic toy programs and contributing small and/or obvious bugfixes to a C++/Qt project.