diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/RT_ENB.MME.HSS/epc.yang.conf b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/RT_ENB.MME.HSS/epc.yang.conf
index 3785214c5a..287e725f8c 100755
--- a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/RT_ENB.MME.HSS/epc.yang.conf
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/RT_ENB.MME.HSS/epc.yang.conf
@@ -157,12 +157,18 @@ S-GW :
         SGW_IPV4_ADDRESS_FOR_S11                = "0.0.0.0/24";
 
         SGW_INTERFACE_NAME_FOR_S1U_S12_S4_UP    = "eth2";
+        SGW_INTERFACE_MTU_FOR_S1U_S12_S4_UP     = 1564;
         SGW_IPV4_ADDRESS_FOR_S1U_S12_S4_UP      = "192.168.13.17/24";
+        # TODO  PORT NUMBER
         SGW_IPV4_PORT_FOR_S1U_S12_S4_UP         = 2152;
 
         SGW_INTERFACE_NAME_FOR_S5_S8_UP         = "none";
         SGW_IPV4_ADDRESS_FOR_S5_S8_UP           = "0.0.0.0/24";
     };
+    # Only for tests
+    SGW_DROP_UPLINK_S1U_TRAFFIC                 = "no";
+    # Only for tests
+    SGW_DROP_DOWNLINK_S1U_TRAFFIC               = "no";
 };
 
 P-GW = 
@@ -174,6 +180,8 @@ P-GW =
 
         PGW_INTERFACE_NAME_FOR_SGI            = "eth3";
         PGW_IPV4_ADDRESS_FOR_SGI              = "192.168.14.17/24";
+        # Option available only if GTPU in kernel configured
+        PGW_MASQUERADE_SGI                    = "no";
     };
     
     IP_ADDRESS_POOL :