need help to sort network packets in JAVA using JPCAP or JNETPCAP??

hello Guys,
jus joined this forum & seems interesting & motivating too...

i need ur help for my Software....
Currently i m working on a Software that captures packets from network.
i used JPCAP for it. but later came to know that it can only capture & store a packet, cannot sort.
is there any another way to capture & sort Packets in java?
& i heard that there is another package called 'JNETPCAP' for packet capturing, dnt know details abt JNETPCAP...jus want to ask, will that be useful....???

need ur suggestions......

Thank You in advance...