--- a/etc/hosts/test	Tue Feb 24 19:24:06 2015 +0200
+++ b/etc/hosts/test	Tue Feb 24 19:24:36 2015 +0200
@@ -1,5 +1,7 @@
 [foo]
-    ip  = 127.0.0.1
+    ip          = 127.0.0.1
+    ethernet    = 00:11:22:33:44:55
 
 [bar]
-    ip  = 127.0.0.2
+    ip          = 127.0.0.2
+    ethernet    = 01:23:45:67:89:ab