identifying application type of network traffic

Hi, I'm trying to identify applications which generate those traffic on our border routers. I use sampled netflow as data source and some flow-tools as analizer. Currently, I use (protocol, port_number) as indicator of application. Referring to rfc on wellknown protocol and port allocation, I can only identity about 50% of traffic type. Is there a complete (protocol, port_number) list ? or is there a better way to identify application type based on netflow data? regards Joe __________________________________________________ Do You Yahoo!? Log on to Messenger with your mobile phone! http://sg.messenger.yahoo.com