I have been messing around with some of the application awareness features on my asa 5505(for example recognizing a certian username of IM sites), and was wondering if this type of functionality is available on the PIX line, espeically if above 7.0 or 8.0 code? Particularly im interested in the ability to detect/bock P2P/bittorrent traffic by detecting the protocal rather then just port based.