diff --git a/support/netconfig.sh b/support/netconfig.sh
index a4afab384..fe81513ca 100755
--- a/support/netconfig.sh
+++ b/support/netconfig.sh
@@ -1,24 +1,17 @@
 #!/bin/sh
 
-if [ 1 -ne $# ]
-then
-    echo You must specify interface name : ./netconfig.sh eth0
-
-    exit;
-fi
-
 SYSTEM=`uname`;
 
 if [ "$SYSTEM" = "Linux" ]; then
-    ifconfig $1:hss 10.1.35.214/32 up
-    ifconfig $1:mme 10.1.35.215/32 up
-    ifconfig $1:sgw 10.1.35.216/32 up
-    ifconfig $1:pcrf 10.1.35.218/32 up
-    ifconfig $1:pgw 10.1.35.219/32 up
+    ifconfig lo:hss 10.1.35.214 netmask 255.255.255.255 up
+    ifconfig lo:mme 10.1.35.215 netmask 255.255.255.255 up
+    ifconfig lo:sgw 10.1.35.216 netmask 255.255.255.255 up
+    ifconfig lo:pcrf 10.1.35.218 netmask 255.255.255.255 up
+    ifconfig lo:pgw 10.1.35.219 netmask 255.255.255.255 up
 else
-    ifconfig $1 alias 10.1.35.214 netmask 255.255.255.255
-    ifconfig $1 alias 10.1.35.215 netmask 255.255.255.255
-    ifconfig $1 alias 10.1.35.216 netmask 255.255.255.255
-    ifconfig $1 alias 10.1.35.218 netmask 255.255.255.255
-    ifconfig $1 alias 10.1.35.219 netmask 255.255.255.255
+    ifconfig lo0 alias 10.1.35.214 netmask 255.255.255.255
+    ifconfig lo0 alias 10.1.35.215 netmask 255.255.255.255
+    ifconfig lo0 alias 10.1.35.216 netmask 255.255.255.255
+    ifconfig lo0 alias 10.1.35.218 netmask 255.255.255.255
+    ifconfig lo0 alias 10.1.35.219 netmask 255.255.255.255
 fi