Frequently Asked Questions
What is Azure VPN Gateway?
Azure VPN Gateway connects your on‑premises networks to Azure through site‑to‑site VPN tunnels, point‑to‑site connections, or VNet‑to‑VNet links. It enables secure, encrypted traffic across the internet.
How many VPN tunnels can a single gateway support?
The number of tunnels depends on the gateway SKU. For example, the Basic SKU supports up to 10 tunnels, while the Standard and High‑Performance SKUs support up to 30 and 200 tunnels respectively.
What are the recommended sizing guidelines?
Choose a gateway SKU based on your required throughput, number of tunnels, and latency. Use the Azure sizing calculator to estimate bandwidth needs and consider redundancy with active‑active configurations for high availability.
Can I use multiple VPN gateways in the same VNet?
Yes. You can deploy multiple VPN gateways in the same virtual network, but each must be placed in its own subnet. This is useful for segmentation, testing, or multi‑tenant scenarios.
How is high availability achieved?
Enable active‑active mode for Standard and higher SKUs. This deploys two gateway instances in separate availability zones, providing automatic failover without manual intervention.