I have 2 scenario's that I am trying to solve in my Azure network environment. In both scenario's OnPrem-branch1 needs to connect to OnPrem-branch2 via my own Azure virtual network. I have Azure Site2Site VPN tunnels to each OnPrem branch from one of my Vnets in Azure. Note: There are multiple branches hence the 2 case below.
Case 1:
OnPrem-branch1 <--- Azure S2S VPN ---> Azure Vnet <--- Azure S2S VPN ---> OnPrem-branch2
Both branches are connected to my Vnet using the same Azure VPN Gateway. How can I link the 2 branches together?
Case 2:
OnPrem-branch1 <--- Azure S2S VPN ---> Vnet1 <--- ? ---> Vnet2 <--- Azure S2S VPN ---> OnPrem-branch2
In this case I have an old Vnet1 that has a S2S connection to branch one. And a newer Vnet2 connected via S2S to branch2. I can using Azure Networking peering to connect to the 2 Vnets, but will branch1 be able to reach branch 2 going through 2 Vnet's? Or do I need to setup a Vnet-to-Vnet VPN to connect the Vnets instead of Network Peering?
The new VPN Gateway is VpnGw1-series generation1 so I can apply the new NAT-feature (when upgrading to VpnGw2)
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