Azure NAT Gateway Skill
This skill provides expert guidance for Azure NAT Gateway. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, 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 |
L36-L40 |
Diagnosing and fixing NAT Gateway issues: reading flow logs, resolving misconfigurations, connectivity failures with Azure services, and outbound internet connection problems. |
| Best Practices |
L41-L45 |
Guidance on reducing SNAT port exhaustion and optimizing outbound connectivity patterns when using Azure NAT Gateway. |
| Decision Making |
L46-L52 |
Guidance on when to use NAT Gateway Standard vs StandardV2, how to migrate between SKUs, and how to move existing outbound access patterns to NAT Gateway. |
| Architecture & Design Patterns |
L53-L58 |
Designing VNets and subnets for NAT Gateway, and patterns for scaling secure outbound traffic using NAT Gateway with Azure Firewall. |
| Limits & Quotas |
L59-L63 |
NAT Gateway limits, quotas, and behaviors: SNAT port allocation, connection scaling, IP/VM limits, per-subscription caps, and FAQs on throughput and high-connection scenarios. |
| Security |
L64-L68 |
Security best practices for NAT Gateway: hardening design, minimizing exposure, managing outbound IPs, monitoring traffic, and integrating with NSGs, firewalls, and other Azure security controls. |
| Configuration |
L69-L77 |
Configuring NAT Gateway V2 (IPs, deployment via ARM/Bicep/Terraform), plus monitoring setup: metrics, alerts, and flow logs for traffic and diagnostics |
| Deployment |
L78-L82 |
Guides for redeploying NAT Gateway after cross-region moves and migrating VM outbound traffic from public IPs to use NAT Gateway |
Troubleshooting
Best Practices
Decision Making
Architecture & Design Patterns
Limits & Quotas
Security
Configuration
Deployment