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).
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