frag3 alerts

["Drew Burchett" <DrewB () united-systems com>]

I am seeing a lot of frag3 Fragmentation overlap alerts with my DNS
server as the destination and a source address that reverses to a root
server.  When examining the packets, the traffic seems to be valid DNS
traffic, although it has nothing to do with any domains that I host.  Is
this some sort of attack, or is it valid traffic that is throwing false
positives?  If it is a false positive, is there any way I can fine-tune
the frag3 preprocessor to avoid these?

 

Drew Burchett

United Systems & Software

http://www.united-systems.com

Phone:  (270)527-3293

Fax:     (270)527-3132

 


--
CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended 
recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or 
distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and 
destroy all copies of the original message.

-- 
This message has been scanned for viruses and dangerous content by MailScanner and is believed to be clean.