Question

You manage two Azure virtual networks in the same region: VNet-Prod (10.1.0.0/16) and VNet-Dev (10.1.0.0/16). Both VNets contain running virtual machines. You need to enable direct private connectivity between the two VNets using VNet peering with the least amount of administrative effort. What must you do first?

Accepted Answer

Re-address one of the VNets so their address spaces do not overlap, then create the peering.

Answer

Create a user-defined route on each subnet pointing to the other VNet's gateway.

Answer

Enable gateway transit on both peering links and deploy a VPN gateway in each VNet.

Answer

Configure a network security group rule to allow traffic between the two overlapping ranges.