diff --git a/xos/configurations/cord-pod/cdn/README.md b/xos/configurations/cord-pod/cdn/README.md
index 7517638..194c105 100644
--- a/xos/configurations/cord-pod/cdn/README.md
+++ b/xos/configurations/cord-pod/cdn/README.md
@@ -55,6 +55,13 @@
 
 1. run setup-logicalinterfaces.sh
 
+### CDN on VTN - important notes
+
+* We manually edited synchronizers/vcpe/templates/dnsasq_safe_servers.j2 inside the vcpe synchronizer VM:
+    # temporary for ONS demo
+    address=/z.cdn.turner.com/207.141.192.134
+    address=/cnn-vh.akamaihd.net/207.141.192.134
+
 ### Test Commands
 
 * First, make sure the vSG is the only DNS server available in the test client.