I have problem with IDS evaluation. Firstly I used KDD99 dataset because of its good documents about attacks. But its attacks was very old and snort couldn't detect many of attacks. Then I found LBNL dataset and read about it. It seems to be good for the testing accuracy of IDS. But my problem is that it has not any documents about verifying attacks. I can't calculate number of false positives and detection rate. I also have this problem with some other datasets. I think I've missed some things. Any helps would be appreciated.