Vielen Dank, das ist es:
omping -c 10000 -i 0.001 -F -q px1 px3
px3 : waiting for response msg
px3 : joined (S,G) = (*, 232.43.211.234), pinging
px3 : given amount of query messages was sent
px3 : unicast, xmt/rcv/%loss = 10000/10000/0%, min/avg/max/std-dev = 0.166/0.275/1.085/0.030
px3 ...