You are creating rules for ports 6881-6889. This isn’t advised, and is the result of a lot of confusion.
Those are the listening ports that the original bittorrent client used, back when Cohen guessed this would take several ports.
Mark the whole question “false”.
Choose just one port, that’s all that turned out to be needed and all that BitComet uses. It can’t use more. Good, since you don’t have to fuss with port ranges.
To avoid interfering with ports nominally used by other applications, choose a port above 51000.
Simplify your life. Use port 65432, and just have done with it. Really hard number to forget. In the right range. No port works any better than any other port, there is no “right” port, nothing “works better” if you use any port instead of another, and this has already all taken much more time than it’s worth.
