Creating a VPN tunnel with a Sonicwall

Question

I'm trying to follow this article - https://www.sonicwall.com/support/knowledge-base/how-can-i-configure-a-vpn-between-a-sonicwall-firewall-and-microsoft-azure/170505320011694/ It mentions the azure gateway subnet is 10.10.1.0/24.
The azure lan subnet is 10.10.2.0/24 Then it says set up the aVirtual network and add with an address space of 10.10.0.0/16 - is that some ip range MS pulled out of their <xxxx>? Where does that come from. Why is it a /16 The sonicwall side is straight forward - I can't figure out the MS side.

Answer 1

@Boe Dillard

The document you are refering to is not from Microsoft and is from a third party. Microsoft did not create this documentation and we will not be able to guarantee the authenticity of the contents provided.

With that said,

Taking a look at the documentation, the subnet and Vnet address ranges are correct.

• NOTE : Subnet and Vnet are not same. Subnet is a part of Vnet.
• You are instructed to create a VNet with the range of "10.10.0.0/16" and name "VNET-01"
• Now, in this VNet, you are instructed to create 2 subnets,
  • Gateway subnet: 10.10.1.0/24
  • LAN subnet: 10.10.2.0/24
• Both the subnets' ranges "10.10.1.0/24" and "10.10.2.0/24" are a part of the VNet's address range "10.10.0.0/16"
• Everything seems correct so far.
• Refer : VNet concepts
• 
• Sonicwall has created all the above ranges for demonstration purposes only
• In case you have a VNet with a different address range in Azure side, you must make sure you create the subnets according to the available address ranges in the VNet.

To create a VPN Connection from Azure to any VPN Device, you can refer to this article. Create a site-to-site VPN connection in the Azure portal

Thanks,

Kapil