azure-vpn-gateway
Expert knowledge for Azure VPN Gateway development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when configuring S2S/P2S VPNs, BGP routing, IPsec/IKE policies, Entra/RADIUS auth, or ExpressRoute VPNs, and other Azure VPN Gateway related development tasks. Not for Azure Virtual Network (use azure-virtual-network), Azure Virtual WAN (use azure-virtual-wan), Azure ExpressRoute (use azure-expressroute), Azure Application Gateway (use azure-application-gateway).
What this skill does
# Azure VPN Gateway Skill This skill provides expert guidance for Azure VPN Gateway. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, 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](https://github.com/MicrosoftDocs/mcp/blob/main/README.md) 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 | L37-L44 | Diagnosing and fixing Azure VPN Gateway issues: client prerequisites, packet captures, tunnel resets, connection health checks, and answers to common troubleshooting FAQs. | | Best Practices | L45-L49 | Guidance on using network virtual appliances (NVAs) in Azure as VPN endpoints for remote access, including design, routing, security, and integration with Azure VPN Gateway. | | Decision Making | L50-L60 | Guidance on choosing VPN Gateway SKUs and public IPs, planning/migrating gateways and clients (Linux, Classic, Basic), and shifting P2S protocols (SSTP→IKEv2/OpenVPN) for remote access. | | Architecture & Design Patterns | L61-L67 | Design patterns and guidance for choosing VPN Gateway topologies, configuring active-active gateways, and building highly available, resilient site-to-site connectivity. | | Limits & Quotas | L68-L72 | VPN Gateway client version history, SKU comparisons, and FAQs about gateway limits, scale, performance, and connection behavior | | Security | L73-L94 | Configuring secure VPN connections: IPsec/IKE policies, cert- and Entra-based auth, MFA/RADIUS, access control, crypto requirements, and security best practices for Azure VPN Gateway. | | Configuration | L95-L155 | Configuring Azure VPN Gateway and clients: P2S/S2S setup, auth (cert, Entra ID, RADIUS), routing/BGP, IPsec/NAT, monitoring, Always-On, and VNet/ExpressRoute connectivity. | | Integrations & Coding Patterns | L156-L163 | Configuring Azure VPN Gateway with on-prem devices and services: NPS/RADIUS VSAs for P2S, S2S over ExpressRoute, Cisco ASA samples, and BGP VPN connectivity with AWS. | | Deployment | L164-L176 | Deploying and migrating Azure VPN Gateways: create/upgrade gateways and SKUs, switch active/active modes, set up S2S VPNs, and manage client profiles and IP migrations via PowerShell/CLI. | ### Troubleshooting | Topic | URL | |-------|-----| | Run Azure VPN Client prerequisites check and fix issues | https://learn.microsoft.com/en-us/azure/vpn-gateway/azure-vpn-client-prerequisites-check | | Use packet capture on VPN Gateway for diagnostics | https://learn.microsoft.com/en-us/azure/vpn-gateway/packet-capture | | Reset VPN Gateway or connection to restore IPsec tunnels | https://learn.microsoft.com/en-us/azure/vpn-gateway/reset-gateway | | Verify Azure VPN Gateway connection health | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-verify-connection-resource-manager | ### Best Practices | Topic | URL | |-------|-----| | Use NVAs in Azure for remote access scenarios | https://learn.microsoft.com/en-us/azure/vpn-gateway/nva-work-remotely-support | ### Decision Making | Topic | URL | |-------|-----| | Select the right Azure VPN Gateway SKU | https://learn.microsoft.com/en-us/azure/vpn-gateway/about-gateway-skus | | Plan migration from Azure VPN Client for Linux | https://learn.microsoft.com/en-us/azure/vpn-gateway/azure-vpn-client-linux-retirement | | Plan migration from Basic to Standard VPN public IP | https://learn.microsoft.com/en-us/azure/vpn-gateway/basic-public-ip-migrate-about | | Map and migrate Azure VPN Gateway SKUs | https://learn.microsoft.com/en-us/azure/vpn-gateway/gateway-sku-consolidation | | Migrate P2S connections from SSTP to IKEv2/OpenVPN | https://learn.microsoft.com/en-us/azure/vpn-gateway/ikev2-openvpn-from-sstp | | Migrate VPN Gateways from Classic to Resource Manager | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-classic-resource-manager-migration | | Plan remote work using P2S VPN Gateways | https://learn.microsoft.com/en-us/azure/vpn-gateway/work-remotely-support | ### Architecture & Design Patterns | Topic | URL | |-------|-----| | Design and configure active-active VPN Gateways | https://learn.microsoft.com/en-us/azure/vpn-gateway/about-active-active-gateways | | Select Azure VPN Gateway topologies and designs | https://learn.microsoft.com/en-us/azure/vpn-gateway/design | | Design highly available Azure VPN Gateway connectivity | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-highlyavailable | ### Limits & Quotas | Topic | URL | |-------|-----| | Compare Azure VPN Gateway legacy SKUs and limits | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-skus-legacy | ### Security | Topic | URL | |-------|-----| | Implement forced tunneling for S2S VPN connections | https://learn.microsoft.com/en-us/azure/vpn-gateway/about-site-to-site-tunneling | | Configure custom IPsec/IKE policies in Azure portal | https://learn.microsoft.com/en-us/azure/vpn-gateway/ipsec-ike-policy-howto | | Enable multifactor authentication for P2S VPN users | https://learn.microsoft.com/en-us/azure/vpn-gateway/openvpn-azure-ad-mfa | | Configure P2S VPN with Entra ID and manual app registration | https://learn.microsoft.com/en-us/azure/vpn-gateway/openvpn-azure-ad-tenant | | Manage Azure VPN Gateway root certificate rotation | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-about-gateway-certificate-migration | | Migrate P2S Entra VPN from manual to Microsoft app ID | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-gateway-update | | Create or update custom Entra app ID for P2S VPN | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-register-custom-app | | Configure P2S access control by Entra users and groups | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-users-access | | Configure macOS Azure VPN Client for Entra ID P2S auth | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-vpn-client-mac | | Configure Device SSO with Azure VPN Client on Windows | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-vpn-client-windows-device-sso | | Configure Azure VPN Gateway for P2S RADIUS authentication | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-radius-gateway | | Understand roles and permissions for VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/roles-permissions | | Apply security best practices to Azure VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/secure-vpn-gateway | | Use certificate authentication for S2S VPN connections | https://learn.microsoft.com/en-us/azure/vpn-gateway/site-to-site-certificate-authentication-gateway-about | | Configure S2S certificate authentication using PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/site-to-site-certificate-authentication-gateway-powershell | | Meet cryptographic requirements for Azure VPN gateways | https://learn.microsoft.com/en-us/azure/vpn-gateway/
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