1---2name: azure-network-watcher3description: Expert knowledge for Azure Network Watcher development including troubleshooting, decision making, limits & quotas, security, configuration, and integrations & coding patterns. Use when configuring flow logs, Traffic Analytics, packet capture, VPN monitoring, or KQL/Terraform integrations, and other Azure Network Watcher related development tasks. Not for Azure Monitor (use azure-monitor), Azure Networking (use azure-networking), Azure Virtual Network (use azure-virtual-network), Azure Firewall (use azure-firewall).4---5# Azure Network Watcher Skill
6
7This skill provides expert guidance for Azure Network Watcher. Covers troubleshooting, decision making, limits & quotas, security, configuration, and integrations & coding patterns. It combines local quick-reference content with remote documentation fetching capabilities.
8
9## How to Use This Skill
10
11> **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
12
13> **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](https://github.com/MicrosoftDocs/mcp/blob/main/README.md)
14
15This skill requires **network access** to fetch documentation content:
16- **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch` with query string `from=learn-agent-skill`. Returns Markdown.
17- **Fallback**: Use `fetch_webpage` with query string `from=learn-agent-skill&accept=text/markdown`. Returns Markdown.
18
19## Category Index
20
21| Category | Lines | Description |
22|----------|-------|-------------|
23| Troubleshooting | L34-L44 | Diagnosing and fixing outbound connectivity, NSG/admin rule issues, and VPN gateway/on-prem VPN connection problems, plus automating VPN monitoring with Azure Network Watcher. |
24| Decision Making | L45-L51 | Guidance for migrating network monitoring: moving from classic Connection Monitor and Network Performance Monitor tests, and switching NSG flow logs to VNet flow logs. |
25| Limits & Quotas | L52-L56 | How to configure and run Network Watcher packet capture, storage and filtering options, and the key limits/quotas (size, duration, concurrency) that apply to captures |
26| Security | L57-L64 | Securing Network Watcher: RBAC setup, hardening deployments and data access, Zero Trust segmentation with Traffic Analytics, and protecting VNet flow logs using managed identities. |
27| Configuration | L65-L80 | Configuring and managing Network Watcher agents, NSG/VNet flow logs, schemas, filters, Traffic Analytics, and deployment/governance via Bicep, ARM templates, and Azure Policy |
28| Integrations & Coding Patterns | L81-L86 | Using Network Watcher programmatically: triggering packet captures from Functions alerts, querying Traffic Analytics with KQL, and provisioning VNet flow logs via Terraform. |
29
30### Troubleshooting
31| Topic | URL |
32|-------|-----|
33| Diagnose outbound connection issues with Network Watcher | https://learn.microsoft.com/en-us/azure/network-watcher/connection-troubleshoot-manage |
34| Troubleshoot NSG and admin rules with NSG diagnostics | https://learn.microsoft.com/en-us/azure/network-watcher/diagnose-network-security-rules |
35| Resolve common Azure Network Watcher issues | https://learn.microsoft.com/en-us/azure/network-watcher/frequently-asked-questions |
36| Diagnose on-premises VPN connectivity to Azure with Network Watcher | https://learn.microsoft.com/en-us/azure/network-watcher/network-watcher-diagnose-on-premises-connectivity |
37| Automate VPN connectivity monitoring with Azure Automation and Network Watcher | https://learn.microsoft.com/en-us/azure/network-watcher/network-watcher-monitor-with-azure-automation |
38| Troubleshoot VPN gateways and connections with Azure CLI | https://learn.microsoft.com/en-us/azure/network-watcher/vpn-troubleshoot-cli |
39| Troubleshoot VPN gateways and connections with PowerShell | https://learn.microsoft.com/en-us/azure/network-watcher/vpn-troubleshoot-powershell |
40
41### Decision Making
42| Topic | URL |
43|-------|-----|
44| Migrate from Connection Monitor classic to new Connection Monitor | https://learn.microsoft.com/en-us/azure/network-watcher/migrate-to-connection-monitor-from-connection-monitor-classic |
45| Migrate tests from Network Performance Monitor to Connection Monitor | https://learn.microsoft.com/en-us/azure/network-watcher/migrate-to-connection-monitor-from-network-performance-monitor |
46| Migrate from NSG flow logs to VNet flow logs | https://learn.microsoft.com/en-us/azure/network-watcher/nsg-flow-logs-migrate |
47
48### Limits & Quotas
49| Topic | URL |
50|-------|-----|
51| Use Network Watcher packet capture and understand its limits | https://learn.microsoft.com/en-us/azure/network-watcher/packet-capture-overview |
52
53### Security
54| Topic | URL |
55|-------|-----|
56| Configure RBAC permissions for Azure Network Watcher | https://learn.microsoft.com/en-us/azure/network-watcher/rbac-permissions |
57| Secure Azure Network Watcher deployment and data access | https://learn.microsoft.com/en-us/azure/network-watcher/secure-network-watcher |
58| Apply Zero Trust segmentation using Traffic Analytics | https://learn.microsoft.com/en-us/azure/network-watcher/traffic-analytics-zero-trust |
59| Secure VNet flow logs with managed identities | https://learn.microsoft.com/en-us/azure/network-watcher/vnet-flow-logs-managed-identity |
60
61### Configuration
62| Topic | URL |
63|-------|-----|
64| Install and manage Azure Monitor Agent on Arc servers | https://learn.microsoft.com/en-us/azure/network-watcher/connection-monitor-install-azure-monitor-agent |
65| Understand Connection Monitor Log Analytics data schemas | https://learn.microsoft.com/en-us/azure/network-watcher/connection-monitor-schema |
66| Install and manage Azure Network Watcher VM extension | https://learn.microsoft.com/en-us/azure/network-watcher/network-watcher-agent-manage |
67| Update Azure Network Watcher Agent VM extension | https://learn.microsoft.com/en-us/azure/network-watcher/network-watcher-agent-update |
68| Configure and manage Azure NSG flow logs | https://learn.microsoft.com/en-us/azure/network-watcher/nsg-flow-logs-manage |
69| Govern Traffic Analytics with Azure Policy | https://learn.microsoft.com/en-us/azure/network-watcher/traffic-analytics-policy-portal |
70| Understand Traffic Analytics schema and aggregation | https://learn.microsoft.com/en-us/azure/network-watcher/traffic-analytics-schema |
71| Deploy Network Watcher flow logs with Bicep | https://learn.microsoft.com/en-us/azure/network-watcher/vnet-flow-logs-bicep |
72| Configure filtering for Azure VNet flow logs | https://learn.microsoft.com/en-us/azure/network-watcher/vnet-flow-logs-filtering |
73| Configure and manage Azure virtual network flow logs | https://learn.microsoft.com/en-us/azure/network-watcher/vnet-flow-logs-manage |
74| Enforce VNet flow logs with Azure Policy | https://learn.microsoft.com/en-us/azure/network-watcher/vnet-flow-logs-policy |
75| Deploy Network Watcher flow logs via ARM template | https://learn.microsoft.com/en-us/azure/network-watcher/vnet-flow-logs-template |
76
77### Integrations & Coding Patterns
78| Topic | URL |
79|-------|-----|
80| Trigger Network Watcher packet captures from Azure Functions alerts | https://learn.microsoft.com/en-us/azure/network-watcher/packet-capture-alert-triggered |
81| Analyze Traffic Analytics data with KQL queries | https://learn.microsoft.com/en-us/azure/network-watcher/traffic-analytics-queries |
82| Provision Azure VNet flow logs with Terraform | https://learn.microsoft.com/en-us/azure/network-watcher/vnet-flow-logs-terraform |
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