I am looking at this https://docs.microsoft.com/en-us/azure/architecture/reference-architectures/hybrid-networking/
It states 4 options to connect from on-prem to AZURE:
- Hybrid network with VPN gateway
- Hybrid network with ExpressRoute
- Hybrid network with ExpressRoute and VPN failover
- Hub-spoke topology
I am looking at the first option: https://docs.microsoft.com/en-us/azure/architecture/reference-architectures/hybrid-networking/vpn?tabs=portal
This diagram is there:
- I find the diagram hard to follow. Does the AZURE Stack include the Azure Virtual Network (AVN) or is that part of another AZURE Stack?
- Main question: The AVN shown is fine with its own Gateway, but what if there are 2 VNETs? Both will be shown with a line to the same On Premises Gateway? Both will have a Gateway and will we need 2 site2site VPN’s or reuse the same site2site VPN? I think the latter but can only see example with Hub Spoke approach.
- Moreover, the main document lists 4 types of approaches – one being Hub Spoke approach. But the document for this option also talks about Hub Spoke approach. I find that hard to follow.
May seem a silly premise or set of questions, but I find the article not well written. I somehow think this article is more relevant: https://docs.microsoft.com/en-us/azure/virtual-network/virtual-network-peering-overview