DNS SPOOF from my ISP's DNS servers

["Dr. Aldo Medina" <aldo_medina () yahoo com>]

I regularly get messages like this in my logs:

Jul  2 12:29:00 aldomedina snort: [1:254:2] DNS SPOOF
query response with ttl: 1 min. and no authority
[Classification: Potentially Bad Traffic] [Priority:
2]:
{UDP} 200.23.242.196:53 -> mydinamicip:someport

200.23.242.196 is my ISP's DNS server. I suppose I
shouldn't worry, but why am I getting this responses,
and should I report them either to Telmex or to Snort
false positives team?. TIA

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 


-------------------------------------------------------
This SF.Net email sponsored by Black Hat Briefings & Training.
Attend Black Hat Briefings & Training, Las Vegas July 24-29 - 
digital self defense, top technical experts, no vendor pitches, 
unmatched networking opportunities. Visit www.blackhat.com
_______________________________________________
Snort-users mailing list
Snort-users () lists sourceforge net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/listinfo/snort-users
Snort-users list archive:
http://www.geocrawler.com/redir-sf.php3?list=snort-users