https://sn.1w6.org/file/lnxw48-20161013T013121-33tp3sm.html
@whistlewright All programs are supposed to go through the #VPN, but some of them don't completely follow that. (Examples include many P2P applications, where they have to somehow notify peers what IP address they are based at and end up sending the non-VPN address. I've heard that Bittorrent is known to do this.)