mpExperience/mpMininetBuilder: finally ARP works!

Seems a bug is somewhere in minitopo, fixed it by reconfiguring the
network while preparing the experience

src/mpExperience.py

@@ -29,6 +29,7 @@ class MpExperience:
 	def prepare(self):
 		self.setupSysctl()
 		self.runUserspacePM()
+		self.mpConfig.configureNetwork()
 		self.runTcpDump()
 		self.runNetemAt()
 		pass

src/mpMininetBuilder.py

@@ -20,8 +20,7 @@ class MpMininetBuilder(Topo):
 		return stdout
 
 	def startNetwork(self):
-		self.net = Mininet(topo=self,link=TCLink,autoStaticArp=True,autoSetMacs=True)
-		self.net.staticArp()
+		self.net = Mininet(topo=self,link=TCLink)
 		self.net.start()
 
 	def getCLI(self):