diff --git a/INSTALL.md b/INSTALL.md
index a410b0b..ee0a5f3 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -69,6 +69,9 @@ Replace `foodevice` with whatever you like to call this device
 my_device=foodevice
 
 # curl https://api.oauth3.org/api/tunnel@oauth3.org/checkip
+# READ THIS: localhost is being used as an example.
+# Your IP address should be public facing (i.e. port-forwarding is enabled on your router).
+# If it isn't, then you need something like goldilocks providing a tunnel.
 my_address=127.0.0.1
 
 # set device address and attach primary domain