Show the packet header with all the fields.

BearShare adjusts it's behaviour for many factors, such as various header fields.

I know that from here I have no problem seeing a wider variety of port numbers than you do,
and that is probably because I am continuously operating as an ultrapeer with BearShare on a
non-firewalled connection. If you get BearShare 5.1.0b25, put it into ultrapeer mode and make
sure your connection isn't firewalled or your traffic isn't being "shaped" by your ISP, your
packet captures will probably show all the hosts instead of just the ones on default ports.