An Azure service that automates the access and use of data across clouds without writing code.
If you don't want to explicitly add your IP public address, you can define your source as a Virtual Network\Subnet or Service Tag. You can also filter on HTTP headers: X-Forwarded-Host, X-Forwarded-For, X-Azure-FDID, & X-FD-HealthProbe
Ref: https://learn.microsoft.com/en-us/azure/app-service/overview-access-restrictions