Odd entries in my Security Router logs

[Julian Young <julian.young () nl compuware com>]

I keep seeing these entry in my external routers log files.  Does any
one recognize theme and know what type of attack they are. ok is
obviously something to do with DHCP.   but i recently had  a firewall 
compromised  and i still don't know how.  since that wall had dhcp open
I wounder if this could have been the trick. 

I has left the ip number as they are since none of them belong to me or
in any range i use ! 

#   Time        Packet Information                             
Reason            Action
  1|Dec  8 02 |From:192.168.7.249   To:192.168.255.254 |match          
|block  
   | 09:37:12 |UDP     src port:00068 dest port:00067  |service deny   
|      
  2|Dec  8 02 |From:192.168.8.250   To:192.168.255.254 |match          
|block  
   | 09:37:12 |UDP     src port:00068 dest port:00067  |service deny   
|      
  3|Dec  8 02 |From:192.168.7.249   To:192.168.255.254 |match          
|block  
   | 15:45:32 |UDP     src port:00068 dest port:00067  |service deny   
|      




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