Hi candyangel,

This is by design. We open up a high number port (anywhere from 45100 to 45110) as an alternate means of handling magnet links. Currently we don't actually receive any information on this port, but it's possible to. We open it so that programs (like a web-browser) on your computer can contact LimeWire and tell it to do stuff. LimeWire will ignore any information that it receives on that port from the outside world, meaning that the only instructions it will handle are those from your computer.