We are trying to connect Customer w/ Internet access. Customer has ZScaler and want the traffic to go via ZScaler. There is a site router and FW at the site. There are some AWS based applications at site which we are trying to connect by using Dest AWS IP Addresses in site router, so that they take path via configured GRE Tunnel to ZScaler DC. The ZS tunnels are up, However, we are not having much success as the traffic does not ride the ZS tunnels. Please see if we going wrong here w/ cloud based services?