I do not have networking background. I hope someone can explain to me about the Azure App service IP address. I have App Services which are integrated with my Azure VNet. But the inbound/outbound IP Addresses of those App Services are not in the range of VNet IP addresses. Why? What's the purpose of VNet integration?

In a on-premise network, if your service is running on a server in a subnet, the IP address of the service is normally the IP address of the server. Why it is so different on Azure.

CodePudding user response：

VNet integration is meant to allow outbound traffic from your App Service app to be pushed into a private VNet rather than go directly to the public internet. It is not meant to grant inbound private access / deploy your App Service within the VNet.

If you want to isolate your App Service, then you should have a look to Azure Service Environments that allows you to deploy your App inside a VNet. Then, the IP of your App Service will be in sync with the IP range of your VNet.