Michael Fulton
When you talk about Virtual Network Gateways you say that "The VMs that are located in the gateway subnet are created when you create the virtual network gateway." So these are not VM’s I create or can even see or access then?
AZ-900 Microsoft Azure Fundamentals 2020
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Hey Michael. I had a look into this myself, and found this info from Microsoft.
A virtual network gateway is composed of two or more VMs that are deployed to a specific subnet you create called the gateway subnet. Virtual network gateway VMs contain routing tables and run specific gateway services. These VMs are created when you create the virtual network gateway. You can’t directly configure the VMs that are part of the virtual network gateway.
So it seems that although you are able to specify how you want them to be configured, indirectly, through choosing what type of VPN you intend to use them for/with – see the Planning Table on this page –> https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-vpngateways , once they are created they are not yours to manage! Microsoft manages them in either an active/passive or an active/active. At the point you create the Virtual Network Gateway you need to know if it will be the connector for a VPN or for an ExpressRoute, as again this indirectly configures the VM’s which you won’t be able to fiddle with after the event. There is more info here –> https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-vpn-gateway-settings#gwtype Hope that helps, J