diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.usrpb210.epc.local.conf b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.usrpb210.epc.local.conf
index e2d68419397169130eba84f5f5e8f8dabf283a86..f6d1164a97b3cf11c30d25830d23accdd0dc3c4a 100644
--- a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.usrpb210.epc.local.conf
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.usrpb210.epc.local.conf
@@ -136,8 +136,8 @@ eNBs =
         ENB_INTERFACE_NAME_FOR_S1_MME            = "tun2";
         ENB_IPV4_ADDRESS_FOR_S1_MME              = "192.188.2.2/24";
 
-        ENB_INTERFACE_NAME_FOR_S1U               = "tun3";
-        ENB_IPV4_ADDRESS_FOR_S1U                 = "192.188.3.3/24";
+        ENB_INTERFACE_NAME_FOR_S1U               = "lo";
+        ENB_IPV4_ADDRESS_FOR_S1U                 = "127.0.0.1/24";
         ENB_PORT_FOR_S1U                         = 2153; # Spec 2152
     };