Azure VPN Gateway Scenarios

Azure VPN Gateway enables you to create secure, cross-premises connections between your on-premises networks and your Azure Virtual Networks. This document explores common scenarios and use cases for Azure VPN Gateway.

Key Benefits of Azure VPN Gateway

Secure Connectivity: Encrypts traffic between your networks, protecting sensitive data.
Scalability: Adapts to your growing network needs.
Reliability: Provides high availability for your connections.
Cost-Effective: Leverages the public internet for connectivity, reducing dedicated line costs.

Common VPN Gateway Scenarios

1. Site-to-Site (S2S) VPN

Connect your on-premises network to an Azure Virtual Network. This is ideal for extending your datacenter resources to the cloud while maintaining a secure connection.

Use Cases: Hybrid cloud deployments, disaster recovery, accessing on-premises resources from Azure.
Configuration: Requires a compatible VPN device at your on-premises location.

2. Point-to-Site (P2S) VPN

Connect individual client devices (laptops, desktops) to an Azure Virtual Network. This is useful for remote users or employees who need to access Azure resources securely from outside the corporate network.

Use Cases: Remote work access, secure access for consultants or contractors.
Configuration: Typically uses SSTP or IKEv2/IPsec protocols.

3. VNet-to-VNet Connectivity

Connect two or more Azure Virtual Networks. This allows resources in different VNets to communicate securely as if they were on the same network. This is often used when you have resources deployed in different Azure regions or for segregating workloads.

Use Cases: Multi-region deployments, secure communication between different Azure environments.
Configuration: Uses VPN Gateway instances in each VNet.

4. Multi-Site Connections

Connect multiple on-premises locations to a single Azure Virtual Network. This allows different branches of your organization to connect to your Azure resources.

Use Cases: Connecting headquarters and branch offices to Azure.
Configuration: Supports multiple on-premises VPN devices connected to the same Azure VPN Gateway.

5. ExpressRoute with VPN Failover

Combine the benefits of Azure ExpressRoute (dedicated private connection) with a VPN Gateway for a highly available and resilient network solution. The VPN Gateway acts as a failover in case the ExpressRoute connection experiences an outage.

Use Cases: Mission-critical applications requiring maximum uptime, hybrid environments with stringent performance needs.
Configuration: Requires both ExpressRoute circuits and VPN Gateway configuration.

Next Steps

Explore the following resources to learn more about configuring and managing Azure VPN Gateway for your specific needs:

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