TODO

 
 - res = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) seems with no effect on TCPIP sockets 
   look and fix if possible.
   
 - test read over closed socket should return 0 : fixed but found another :
 
 - When you try to Connect a TCPIP socket over a not open port  the connect never failed but block forever.
 
 - utils.cc TimeBase: add possibility to change the start date of the Simulation ! 
  
  
 Some ideas:

  - option: have the NS3 time for file attributs in place of the real time,
      
EXEC: use virtual PATH env or real ?      

TODO: AddStateChangeListener ( ) see with Mathieu dans NS-3-DEV , 
      http://old.nabble.com/device-state-change-notifiers-tt29303915.html#a29303915
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Code review pour AF_PACKET dans NS3,

Regler les remarques de Mathieu

Integrer DCE dans NEPI, peut-etre passer DCE comme module NS3.