azure-nat-gateway

name	azure-nat-gateway
description	Expert knowledge for Azure NAT Gateway development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, configuration, and deployment. Use when managing SNAT ports, outbound IPs, flow logs, hub-spoke egress, or Azure Firewall integration, and other Azure NAT Gateway related development tasks. Not for Azure Virtual Network (use azure-virtual-network), Azure Virtual Network Manager (use azure-virtual-network-manager), Azure Virtual WAN (use azure-virtual-wan), Azure VPN Gateway (use azure-vpn-gateway).
compatibility	Requires network access. Uses mcp_microsoftdocs:microsoft_docs_fetch or fetch_webpage to retrieve documentation.
metadata	{"generated_at":"2026-04-19","generator":"docs2skills/1.0.0"}

Azure NAT Gateway Skill

This skill provides expert guidance for Azure NAT Gateway. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, configuration, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g., L35-L120), use read_file with the specified lines. For categories with file links (e.g., [security.md](security.md)), use read_file on the linked reference file

IMPORTANT for Agent: If metadata.generated_at is more than 3 months old, suggest the user pull the latest version from the repository. If mcp_microsoftdocs tools are not available, suggest the user install it: Installation Guide

This skill requires network access to fetch documentation content:

• Preferred: Use mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.
• Fallback: Use fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.

Category Index

Category	Lines	Description
Troubleshooting	L35-L39	Diagnosing and fixing NAT Gateway issues: reading flow logs, resolving misconfigurations, connectivity failures with Azure services, and outbound internet connection problems.
Best Practices	L40-L44	Guidance on reducing SNAT port exhaustion and optimizing outbound connectivity patterns when using Azure NAT Gateway.
Decision Making	L45-L51	Guidance on choosing NAT Gateway SKUs, migrating existing NAT Gateways to StandardV2, and moving outbound internet access from other methods to NAT Gateway.
Architecture & Design Patterns	L52-L60	Design patterns for placing NAT Gateway in VNets, hub-spoke, with NVAs, and with internal/public load balancers, plus scaling outbound traffic and combining with Azure Firewall.
Limits & Quotas	L61-L65	NAT Gateway limits, SNAT port quotas, connection scaling behavior, per-resource caps, and FAQs on throughput, IPs, and troubleshooting limit-related issues.
Configuration	L66-L74	Configuring NAT Gateway (Standard and StandardV2), managing IPs/resources, setting up flow logs, and configuring monitoring, metrics, and alerts for gateway traffic.
Deployment	L75-L80	How to deploy and redeploy NAT Gateway (ARM/Bicep), migrate or move outbound traffic from VMs/public IPs, and transition existing outbound access to Azure NAT Gateway.

Troubleshooting

Topic	URL
Monitor and troubleshoot with NAT Gateway flow logs	https://learn.microsoft.com/en-us/azure/nat-gateway/monitor-nat-gateway-flow-logs

Best Practices

Topic	URL
Optimize SNAT usage with Azure NAT Gateway	https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-snat

Decision Making

Topic	URL
Migrate Azure NAT Gateway to StandardV2	https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-v2-migrate
Choose between Azure NAT Gateway SKUs	https://learn.microsoft.com/en-us/azure/nat-gateway/nat-sku
Migrate Azure outbound access to NAT Gateway	https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-migrate-outbound-nat

Architecture & Design Patterns

Topic	URL
Design virtual networks using Azure NAT Gateway	https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-design
Scale outbound traffic with NAT Gateway and Azure Firewall	https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-hub-spoke-nat-firewall
Integrate NAT Gateway in hub-spoke with NVA	https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-hub-spoke-route-nat
Use NAT Gateway with internal load balancer	https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-nat-gateway-load-balancer-internal-portal
Use NAT Gateway with public load balancer	https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-nat-gateway-load-balancer-public-portal

Limits & Quotas

Topic	URL
Azure NAT Gateway FAQs with limits and behavior	https://learn.microsoft.com/en-us/azure/nat-gateway/faq

Configuration

Topic	URL
Manage Azure NAT Gateway configuration and IPs	https://learn.microsoft.com/en-us/azure/nat-gateway/manage-nat-gateway
Reference for Azure NAT Gateway monitoring data	https://learn.microsoft.com/en-us/azure/nat-gateway/monitor-nat-gateway-reference
Enable and use StandardV2 NAT Gateway flow logs	https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-flow-logs
Configure Azure NAT Gateway resource components	https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-resource
Configure metrics and alerts for Azure NAT Gateway	https://learn.microsoft.com/en-us/azure/nat-gateway/nat-metrics

Deployment

Topic	URL
Deploy Standard V2 NAT Gateway with ARM/Bicep	https://learn.microsoft.com/en-us/azure/nat-gateway/quickstart-create-nat-gateway-v2-templates
Redeploy NAT Gateway after cross-region resource move	https://learn.microsoft.com/en-us/azure/nat-gateway/region-move-nat-gateway
Move VM public IP outbound traffic to NAT Gateway	https://learn.microsoft.com/en-us/azure/nat-gateway/tutorial-migrate-ilip-nat