Azure VPN Gateway is a networking service that provides secure connections between Azure Virtual Networks (VNets) and other networks. These other networks might include your on-premises network or other VNets hosted within Azure.
What Does Azure VPN Gateway Do?
Azure VPN Gateway enables encrypted communication across public networks like the internet. You can think of it as a tunnel between Azure and another network. This is useful when you want to:
- Connect a single user or device to Azure (Point-to-site VPN)
- Connect an entire on-premises network to Azure (Site-to-site VPN)
- Connect multiple Azure VNets (VNet-to-VNet)
Types of VPN Connections
1. Point-to-Site (P2S) VPN
This setup lets an individual device connect securely to an Azure VNet from anywhere. It is perfect for remote workers or mobile users.
2. Site-to-Site (S2S) VPN
This connects your local, on-premises network to Azure. Devices on both sides can communicate securely, as if they were on the same local network.
3. Network-to-Network (VNet-to-VNet)
You can use VPN Gateways to link multiple Azure Virtual Networks. This helps unify services hosted across regions or departments.
These options support a wide variety of enterprise scenarios, including hybrid cloud deployments.
Policy-Based vs. Route-Based VPNs
Azure VPN Gateway supports two configuration models:
- Policy-based VPNs: These define the connection based on specific IP address pairs. They are more rigid and suited for simpler networks.
- Route-based VPNs: These use routing tables to direct traffic. They are more flexible and preferred when:
- Connecting multiple VNets
- Setting up Point-to-Site VPNs
- Managing multiple site connections
- Coexisting with ExpressRoute
Security and Scalability
Azure VPN Gateways support IPsec and IKE encryption standards, ensuring secure communication. They also allow for scaling to meet demand, though the exact performance depends on the gateway SKU selected.
Management Tools
You can manage VPN Gateways through:
- The Azure Portal
- Azure CLI
- Azure PowerShell
These tools make it easier to automate and monitor your gateway setup. For more management options, see #50#.
Conclusion
Azure VPN Gateway is a flexible and secure way to link Azure with other networks. Whether you’re supporting remote workers or creating a hybrid cloud, it plays a vital role in your Azure networking strategy.
Click here for more information about Azure VPN Gateway.
For a guided walkthrough of Azure networking, security, and infrastructure, check out our AZ-900 video course – or go back to the AZ-900 list of requirements.
Please click here to find out more about Microsoft’s AZ-900 exam.
