An NC2 on Azure environment requires that outside networks are allowed to be routed to...

No-NAT Path Requirement:For a No-NAT path to function, the external networks must be able to route traffic directly to the Nutanix User VPC without translation.

Externally Routable IP Address:The externally routable IP address ensures that traffic from outside networks can reach the Nutanix User VPC.

Address Space Compatibility:Sharing the same address space as the Nutanix User VPC allows for seamless integration and communication between the external network and the User VPC.

References:

Azure Virtual Network Documentation on IP Addressing

Nutanix NC2 Configuration Guide on No-NAT Networking