-s : ($PKT_SIZE) packet size
-d : ($DEST_IP) destination IP
-m : ($DST_MAC) destination MAC-addr
+ -p : ($DST_PORT) destination PORT range (e.g. 433-444) is also allowed
-t : ($THREADS) threads to start
-f : ($F_THREAD) index of first thread (zero indexed CPU number)
-c : ($SKB_CLONE) SKB clones send before alloc new SKB