diff --git a/tools/init-vpn b/tools/init-vpn
index 4a7271dbb7..bdcc85c4b0 100755
--- a/tools/init-vpn
+++ b/tools/init-vpn
@@ -2,6 +2,12 @@
 
 # Script originally copied from https://wiki.openstack.org/wiki/Neutron/VPNaaS/HowToInstall
 
+# Test for credentials set
+if [[ "${OS_USERNAME}" == "" ]]; then
+    echo "No Keystone credentials specified.  Try running source openrc"
+    exit
+fi
+
 EXT_NW_ID=`neutron net-list | awk '/public/{print $2}'`
 WEST_SUBNET='192.168.1.0/24'
 EAST_SUBNET='192.168.2.0/24'