ping6(1) - Packets to network hosts
-c, --count=NUMBER
       stop after sending NUMBER packets
-d, --debug
       set the SO_DEBUG option
-i, --interval=NUMBER
       wait NUMBER seconds between sending each packet
-n, --numeric
       do not resolve host addresses
-r, --ignore-routing
       send directly to a host on an attached network
-w, --timeout=N
       stop after N seconds

       Options valid for --echo requests:
-f, --flood
       flood ping (root only)
-l, --preload=NUMBER
       send NUMBER packets as fast as possible before falling into normal mode of behavior (root only)
-p, --pattern=PATTERN
       fill ICMP packet with given pattern (hex)
-q, --quiet
       quiet output
-s, --size=NUMBER
       send NUMBER data octets
-?, --help
       give this help list
--usage
       give a short usage message
-V, --version
       print program version