Set-AzVirtualNetworkGatewayDefaultSite

Hi, As you know, by default, resources deployed to an Azure virtual network that need access to the Internet will use the system-defined default routes to use the Azure backbone. Forced tunneling allows you to redirect all Internet-bound traffic to your on-premise location through a site-to-site VPN tunnel, thus allowing you to manage, inspect, and audit outgoing traffic on your Azure network.