Same src/dst

["Brei, Matt" <mbrei () medclaiminc com>]

     I have been seeing a lot of these "same SRC/DST" alerts even after adding two local rules to pass them.  I think 
these alerts are due to the fact that there is a DNS server running on this machine and it is using itself for its name 
resolution.
  
   #3-(4-1434)    
   BAD TRAFFIC same SRC/DST    
   2003-03-30 18:49:29    
   10.13.110.254:1026    
   10.13.110.254:53    
   UDP    

   #4-(4-1435)    
   BAD TRAFFIC same SRC/DST    
   2003-03-30 18:49:29    
   10.13.110.254:53    
   10.13.110.254:1026    
   UDP    

The two local rules are as follows:

  pass ip 10.13.110.254 53 -> 10.13.110.254 1026 (msg:"BAD TRAFFIC same SRC/DST"; sameip; reference:cve,CVE-1999-0016; 
reference:url,www.cert.org/advisories/CA-1997-28.html; classtype:bad-unknown; sid:527; rev:3;)

pass ip 10.13.110.254 1026 -> 10.13.110.254 53 (msg:"BAD TRAFFIC same SRC/DST"; sameip; reference:cve,CVE-1999-0016; 
reference:url,www.cert.org/advisories/CA-1997-28.html; classtype:bad-unknown; sid:527; rev:3;)

These alerts are filling the database rather quickly.  Please help.  I have searched the mailing list archives as well 
as Usenet with no helpful results.

Matt


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