Thanks.
Our existing VPN tunnel is between our on-prem Juniper VPN and Microsoft Azure gateway, but the physical connection is below:
Juniper (VPN gateway) interface connected to edge router and edge router to the internet (Azure cloud VPN gateway). In Azure side we will need to create a new virtual network and a new gateway (with new IP address) so do I need a new Juniper's interface with new IP address for the new tunnel? Sorry, I'm new to this.