View source for Solution for tutorial 2 - sender

 Change the $SRC and $DST to suite the IP addresses of your nodes

 define($DEV ath0, $SRC 172.30.1.74, $DST 172.30.1.75)
 
 InfiniteSource("Goodbye World", 1 )
  ->UDPIPEncap($SRC, 4001, $DST, 4002)
  ->IPPrint("my packet")
  ->arpq :: ARPQuerier($DEV)
  ->q :: Queue
  ->ToDevice($DEV)
 
 FromDevice($DEV)
  -> c :: Classifier(12/0806 20/0002)
  -> [1] arpq
 
 arpq[1] -> q