I have a Linksys wireless B router, and while I was looking under the UPnP Forwarding section, right below the Azureus configuration, I noticed some strange entries. They are listed like this...

Code:
Application  Ext.Port          TCP UDP     Int.port      IP Address          Enabled 
LF        19008                *        19008          101            (not checked)
LF        19476                *        64932          220            (not checked)
LF        19476                *        64932          220            (not checked)
When I try to get rid of them, they come right back. Anyone have any idea what this is about? Does it have something to do with being a peer on Azureus? Is it something to worry about?