I just received my new MBP today, and the first thing I did was
install Wireshark (via Macports, which works perfectly for me on my
current Powerbook G4)
Specifically...
wireshark/Portfile
The interesting issue is that as soon as I do a "> sudo tshark -i
en1" it kills my wireless association, and I have to reconnect after
the capture to get back into my Apple Extreme wireless connection,
all other devices on the network are unaffected.
If I run Wireshark under X it has the same effect.
Running " > sudo tcpdump -i en1 works fine as you would expect.
This is a known problem on MacBook Pro.