Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
Yes, this setup is supported. Route-based VPNs commonly use a VTI, and a loopback interface may act as the stable peer address when it is configured on the FTD and reachable through the routing path. This is especially useful for multiple ISP connect...