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 ./check_icmp --h 
  
Usage: check_icmp [options] [-H] host1 host2 hostn 
  
Options: 
  
-h, --help Print detailed help screen 
  
-V, --version Print version information 
  
-H specify a target -w warning threshold (currently 200.000ms,0%) 
  
-c critical threshold (currently 500000.000ms,80%) 
  
-n number of packets to send (currently 5) 
  
-i max packet interval (currently 80.000ms) 
  
-I max target interval (currently 0.000ms) 
  
-m number of alive hosts required for success 
  
-l TTL on outgoing packets (currently 0) 
  
-t timeout value (seconds, currently 10) 
  
-b icmp packet size (currenly ignored) 
  
-v verbose 
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