add default IP to peers for mininet to use in ping

Change-Id: Ic4f42a2aff0f184f3bc168993b969c8213b8526c
diff --git a/TestON/tests/USECASE_SdnipFunction_fsfw/Dependency/USECASE_SdnipI2MN.py b/TestON/tests/USECASE_SdnipFunction_fsfw/Dependency/USECASE_SdnipI2MN.py
index cfe9b7e..94da90a 100755
--- a/TestON/tests/USECASE_SdnipFunction_fsfw/Dependency/USECASE_SdnipI2MN.py
+++ b/TestON/tests/USECASE_SdnipFunction_fsfw/Dependency/USECASE_SdnipI2MN.py
@@ -302,16 +302,19 @@
     pr64514.cmd( "sudo vconfig add pr64514-eth0 %s" % vlanId )
     pr64514.cmd( "ip addr add 10.0.4.1/24 dev pr64514-eth0.%s" % vlanId )
     pr64514.defaultIntf().setMAC( '00:00:00:00:00:04' )
+    pr64514.defaultIntf().setIP( '10.0.4.1/24' )
 
     pr64515.setMAC( '00:00:00:00:00:05', 'pr64515-eth0' )
     pr64515.cmd( "sudo vconfig add pr64515-eth0 %s" % vlanId )
     pr64515.cmd( "ip addr add 10.0.5.1/24 dev pr64515-eth0.%s" % vlanId )
     pr64515.defaultIntf().setMAC( '00:00:00:00:00:05' )
+    pr64515.defaultIntf().setIP( '10.0.5.1/24' )
 
     pr64516.setMAC( '00:00:00:00:00:06', 'pr64516-eth0' )
     pr64516.cmd( "sudo vconfig add pr64516-eth0 %s" % vlanId )
     pr64516.cmd( "ip addr add 10.0.6.1/24 dev pr64516-eth0.%s" % vlanId )
     pr64516.defaultIntf().setMAC( '00:00:00:00:00:06' )
+    pr64516.defaultIntf().setIP( '10.0.6.1/24' )
 
     # setup configuration on the interface connected to hosts
     pr64514.setIP( "4.0.0.254", 8, "pr64514-eth1" )