Query for reset-bit
From NSMWiki
Query for reset-bit
Reset bit's, or the abundance of reset bit's, can be an indicator of a more serious problem. To query the sancp table for the "top resetter's" a variation of the following simplified query might help:
SELECT INET_NTOA(src_ip), INET_NTOA(dst_ip) AS RESET_SOURCE_IP, dst_port, count(*) as COUNT FROM sancp FORCE INDEX (start_time) WHERE sid = 1 AND start_time > DATE_SUB(NOW(), INTERVAL 15 MINUTE) AND ( dst_flags & 4 = 4 ) GROUP BY src_ip, dst_ip, dst_port ORDER BY COUNT desc LIMIT 50
Try a query against your sancp table for other, perhaps more interesting bits :)
( dst_flags & 64 = 64 or src_flags & 64 = 64 ) /* reserve0 flags set */ ( dst_flags & 128 = 128 or src_flags & 128 = 128 ) /* reserve1 flags set */

