Azure NAT Gateway

Using Azure NAT Gateway to provide your Azure Resources with internet access.

Azure NAT Gateway is a managed network address translation (NAT) service that provides outbound connectivity for virtual machines (VMs) in your virtual network. NAT Gateway is a highly available, scalable, and resilient service that can handle millions of connections per second. In this blog post, we will provide step-by-step instructions for setting up Azure NAT Gateways.

Steps to set up Azure NAT Gateways

  1. In the Azure portal, navigate to the virtual network that you want to add a NAT gateway to.
  2. Under Settings, select NAT gateway.
  3. Click Create to create a new NAT gateway.
  4. In the Create NAT gateway pane, enter a name for the NAT gateway.
  5. Select the virtual network that you want to add the NAT gateway to.
  6. Configure the NAT gateway settings, such as the SKU, the IP address allocation method, and the subnet.
  7. Click OK to create the NAT gateway.

SKU

The SKU determines the maximum number of connections per second that the NAT gateway can handle. The available SKUs are Basic and Standard. The Basic SKU can handle up to 16,000 connections per second, while the Standard SKU can handle up to 64,000 connections per second.

IP address allocation method

The IP address allocation method determines how IP addresses are assigned to the NAT gateway. The available methods are Dynamic and Static. With Dynamic allocation, the NAT gateway is assigned a dynamic public IP address. With Static allocation, you can assign a static public IP address to the NAT gateway.

Subnet

The subnet is the virtual network subnet that the NAT gateway is deployed to. The subnet must have a route table associated with it that routes traffic to the NAT gateway.

Conclusion

In this blog post, we have provided step-by-step instructions for setting up Azure NAT Gateways. By leveraging Azure NAT Gateways, you can provide outbound connectivity for virtual machines in your virtual network. Azure NAT Gateways is a highly available, scalable, and resilient service that can handle millions of connections per second.

Learn More

  1. Quickstart: Create a NAT gateway - Azure portal | Microsoft Learn