While detecting the managed device, the management station obtaining related information of {HEAD ~ the SSH host key} of {TAIL ~ the managed device} in a UDP transport mode 
While detecting the managed device , the management station obtaining related information of { HEAD ~ the SSH host key } of { TAIL ~ the managed device } in a UDP transport mode
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH