diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.lmssdr.conf b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.lmssdr.conf
index 420949014150671cfc5a95a6aa4ba1e9c9ea0b20..b81ac861f616f8c844300f40cd15321226b815a5 100644
--- a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.lmssdr.conf
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.lmssdr.conf
@@ -133,7 +133,7 @@ eNBs =
 
 
     ////////// MME parameters:
-    mme_ip_address      = ( { ipv4       = "192.168.12.11";
+    mme_ip_address      = ( { ipv4       = "127.0.0.3";
                               ipv6       = "192:168:30::17";
                               active     = "yes";
                               preference = "ipv4";
@@ -142,11 +142,11 @@ eNBs =
 
     NETWORK_INTERFACES :
     {
-        ENB_INTERFACE_NAME_FOR_S1_MME            = "eth0";
-        ENB_IPV4_ADDRESS_FOR_S1_MME              = "192.168.12.212/24";
+        ENB_INTERFACE_NAME_FOR_S1_MME            = "lo";
+        ENB_IPV4_ADDRESS_FOR_S1_MME              = "127.0.0.2/24";
 
-        ENB_INTERFACE_NAME_FOR_S1U               = "eth0";
-        ENB_IPV4_ADDRESS_FOR_S1U                 = "192.168.12.212/24";
+        ENB_INTERFACE_NAME_FOR_S1U               = "lo";
+        ENB_IPV4_ADDRESS_FOR_S1U                 = "127.0.0.4/24";
         ENB_PORT_FOR_S1U                         = 2152; # Spec 2152
     };
 
diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.50PRB.usrpb210.conf b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.50PRB.usrpb210.conf
index 1ae8c45083aabee206f01a3bddb0542d08612f90..d00482edcab59bc95cf847b58e359172b3a7a6ac 100644
--- a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.50PRB.usrpb210.conf
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.50PRB.usrpb210.conf
@@ -142,7 +142,7 @@ eNBs =
         ENB_INTERFACE_NAME_FOR_S1_MME            = "lo";
         ENB_IPV4_ADDRESS_FOR_S1_MME              = "127.0.0.2/24";
 
-        ENB_INTERFACE_NAME_FOR_S1U               = "eth0";
+        ENB_INTERFACE_NAME_FOR_S1U               = "lo";
         ENB_IPV4_ADDRESS_FOR_S1U                 = "127.0.0.4/24";
         ENB_PORT_FOR_S1U                         = 2152; # Spec 2152
     };