VPN Gateway is a Networking Service provided by Azure. Networking services allow the customers to connect their on-premises and cloud resources and assist in protecting and managing the networking for those services. They also lend a hand to the customers in delivering their applications.
Azure Virtual Network
The representation of the physical network infrastructure by two Virtual Machines placed in Azure is referred to as Azure Virtual Network. Virtual Network’s job is to enable the customers to create, manage, monitor, and secure connectivity among the Azure resources along with their on-premise environment. They can be decapsulated into smaller segments called Subnets. The two primary purposes for subnets are:
You can choose how to manage Subnets and Virtual Networks and the way to represent your Networking Infrastructure. You can group multiple resources within the same subnet. Virtual Networks can only reside and spawn resources in a specific region. It would help if you had numerous virtual networks to make your multi-region application work. There two are ways to connect multiple virtual networks:
Azure VPN Gateway
A VPN Gateway is a particular sort of virtual network gateway that is practiced to send encoded traffic between an Azure virtual network and an on-premise area over the public web. These gateways basically provide cross-premises connectivity between customer premises and Azure. Likewise, you can utilize a VPN gateway to send the encrypted traffic between the Azure virtual networks over the Microsoft network. VPN gateways can also be used to connect two virtual networks to each other. A single virtual network can have only a single VPN gateway. You can still create multiple connections to the same VPN gateway as this allows all the VPN tunnels to share the available gateway bandwidth.
Azure VPN Gateway Configuration
A VPN gateway connection is dependent on multiple resources that are configured with particular settings. Even though some resources must be configured in a specific order, most of the resources can be configured independently. For example-
Settings: Settings are a good example because sometimes the settings you prefer for a specific resource are crucial to creating a successful connection.
You can initiate the creation and configuration of resources by using any configuration tool, such as the Azure portal, and later decide to move to another tool, such as PowerShell, to configure resources further or mitigate the existing resources when it is relevant. As per the present scenario, it is impossible to configure every resource and resource setting in the Azure portal. At present, Azure offers two different deployment models:
Key characteristics of VPN Gateway
Azure VPN Gateway Setup
The VPN Gateway setup includes the following elements:
Azure VPN Gateway Topology
Azure VPN Gateways can be configured in many different ways:
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