{HEAD ~ The system} 16 wherein {TAIL ~ the predetermined information} includes a source IP address, a destination IP address, a layer 3 protocol, a layer 4 source port and a layer 4 destination port of a connection 
{ HEAD ~ The system } 16 wherein { TAIL ~ the predetermined information } includes a source IP address , a destination IP address , a layer 3 protocol , a layer 4 source port and a layer 4 destination port of a connection
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH