NAT Gateway should use Standard SKU

High Azure General natgateways-nat-gateway-standard-sku

Applies to

Microsoft.Network/natGateways

What CGPulse checks

A resource passes this rule when sku.name must equal Standard. Anything else is reported as a finding with the evaluated property value attached as evidence.

How to fix it

Use Standard SKU NAT Gateway for zone redundancy and production reliability. In Azure Portal: NAT Gateway > Overview > verify SKU. See: https://learn.microsoft.com/en-us/azure/nat-gateway/nat-overview

CLI

az network nat gateway show --ids "{id}" --query "sku.name" -o tsv

Bicep

resource natGateway 'Microsoft.Network/natGateways@2024-01-01' = {{
  name: '{name}'
  location: resourceGroup().location
  sku: {{
    name: 'Standard'
  }}
  properties: {{}}
}}

Terraform

resource "azurerm_nat_gateway" "{name}" {
  name                = "{name}"
  resource_group_name = "{rg}"
  location            = var.location
  sku_name            = "Standard"
}

Compliance frameworks

Cloud Security: Azure Foundations

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