Hello,
Thank you for posting in Q&A forum
It sounds like you're trying to create a gateway subnet for your virtual network in Azure but are running into some issues. Here are the steps to ensure you can create a gateway subnet:
Create a Virtual Network:
Make sure your virtual network (VNet) is properly set up. You can do this in the Azure portal by navigating to Create a resource > Networking > Virtual network.
Add a Gateway Subnet:
After creating your VNet, you need to add a gateway subnet. This subnet must be named GatewaySubnet for the VPN gateway to function correctly.
Go to your VNet in the Azure portal, select Subnets, and then click + Gateway subnet.
Specify the address range for the gateway subnet. It should be within the address space of your VNet but should not overlap with any other subnets.
Create the VPN Gateway:
Once the gateway subnet is created, you can proceed to create the VPN gateway. Navigate to Create a resource > Networking > VPN gateway.
Follow the prompts to configure the VPN gateway, ensuring it is associated with the correct VNet and gateway subnet.
If you still don't see the option to create a gateway subnet, double-check that your VNet is correctly configured and that there are no overlapping address ranges.
If you need more detailed guidance, you can refer to the https://learn.microsoft.com/en-us/azure/vpn-gateway/tutorial-create-gateway-portal
I hope the information above is helpful.
Best Regards,
Yanhong Liu
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