--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/change_vagrantfile.py	Tue Nov 12 01:50:50 2013 -1000
@@ -0,0 +1,20 @@
+#!/usr/bin/python
+# -*- encoding: utf-8 -*-
+
+import sys,os
+
+FILE = "Vagrantfile"
+
+if not os.path.exists(FILE):
+    print(FILE + ":file not found.")
+    sys.exit(1)
+
+f = open(FILE)
+
+file_tmp = []
+for line in f:
+    file_tmp.append(line)
+
+for l in file_tmp:
+    if 'config.vm.network :private_network' in l:
+