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

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-L43 | Diagnosing and fixing Azure VPN Gateway issues: client prerequisites, packet captures, tunnel resets, connection health checks, and answers to common troubleshooting FAQs. | | Best Practices | L44-L48 | 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 | L49-L59 | Choosing VPN Gateway SKUs, planning and migrating P2S/S2S setups (Linux client, SSTP→IKEv2/OpenVPN, manual→Microsoft client, Classic→ARM), and designing remote work VPN access. | | Architecture & Design Patterns | L60-L67 | Design patterns and topologies for Azure VPN Gateway, including active-active setups, cross-region VPN/ExpressRoute via peering, and highly available connectivity architectures. | | 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 Azure VPN Gateway connections: IPsec/IKE policies, forced tunneling, P2S/S2S auth (Entra ID, cert, RADIUS, MFA), client setup, access control, roles, and crypto requirements. | | Configuration | L95-L155 | Configuring Azure VPN Gateway: P2S/S2S setup, auth (cert, Entra, RADIUS), clients, IPsec/BGP/NAT, routing, monitoring, maintenance, dual-stack, VNet-to-VNet, and Always-On VPN. | | Integrations & Coding Patterns | L156-L164 | Configuring Azure VPN with external systems: NPS/RADIUS user groups, S2S certificate tunnels, VPN over ExpressRoute, Cisco ASA setups, and BGP connections with AWS. | | Deployment | L165-L176 | Deploying and upgrading Azure VPN Gateways (SKUs, zones, active/active), creating S2S VPNs via PowerShell/CLI, and distributing Azure VPN client profiles with Intune. |

Troubleshooting

| Topic | URL | |-------|-----| | 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 appropriate 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 | | Map and migrate Azure VPN Gateway SKUs | https://learn.microsoft.com/en-us/azure/vpn-gateway/gateway-sku-consolidation | | Migrate Azure P2S VPN connections from SSTP to IKEv2/OpenVPN | https://learn.microsoft.com/en-us/azure/vpn-gateway/ikev2-openvpn-from-sstp | | Migrate P2S VPN from manual to Microsoft-registered client | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-gateway-update | | 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 | | Use cross-region VPN/ExpressRoute gateways via peering | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-different-region | | 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 client app | https://learn.microsoft.com/en-us/azure/vpn-gateway/openvpn-azure-ad-tenant | | View and disconnect Azure P2S VPN sessions securely | https://learn.microsoft.com/en-us/azure/vpn-gateway/p2s-session-management | | Manage VPN gateway root certificate migration for P2S | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-about-gateway-certificate-migration | | Create custom audience app ID for P2S Entra 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 | | Set up P2S RADIUS VPN with PowerShell for Azure | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-how-to-radius-ps | | Configure P2S RADIUS authentication in Azure VPN Gateway | 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 | | Understand Azure VPN site-to-site certificate authentication | 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/vpn-gateway-about-compliance-crypto | | Integrate Azure P2S RADIUS with NPS for MFA | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-radius-mfa-nsp |

Configuration

| Topic | URL | |-------|-----| | Generate P2S VPN client profiles for Entra authentication | https://learn.microsoft.com/en-us/azure/vpn-gateway/about-vpn-profile-download | | Add or remove S2S connections on a VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/add-remove-site-to-site-connections | | Configure optional Azure VPN Client settings for P2S | https://learn.microsoft.com/en-us/azure/vpn-gateway/azure-vpn-client-optional-configurations | | Configure BGP for VPN Gateway using Azure CLI | https://learn.microsoft.com/en-us/azure/vpn-gateway/bgp-how-to-cli | | Enable and configure BGP for Azure VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/bgp-howto | | Create custom IPsec policies for P2S VPN | https://learn.microsoft.com/en-us/azure/vpn-gateway/create-custom-policies-p2s-ps | | Configure custom traffic selectors for VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/custom-traffic-selectors | | Configure customer-controlled maintenance windows for VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/customer-controlled-gateway-maintenance | | Configure IPv6 dual-stack for Azure VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/ipv6-configuration | | Configure monitoring for Azure VPN Gateway with Azure Monitor | https://learn.microsoft.com/en-us/azure/vpn-gateway/monitor-vpn-gateway | | Reference monitoring metrics for Azure VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/monitor-vpn-gateway-reference | | Configure NAT rules on Azure VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/nat-howto | | Configure Azure VPN Client for Linux with P2S certificates | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-certificate-client-linux-azure-vpn-client | | Configure P2S certificate authentication on VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-certificate-gateway | | Generate P2S VPN certificates on Linux with OpenSSL | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-certificates-linux-openssl | | Configure P2S VPN gateway with Entra ID client | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-gateway | | Configure Azure VPN Client on Linux with Entra ID | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-vpn-client-linux | | Configure Azure VPN Client with Entra ID on Windows | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-entra-vpn-client-windows | | Install P2S client certificates on Windows, macOS, Linux | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-how-to-vpn-client-install-azure-cert | | Configure P2S VPN user groups and IP pools | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-user-groups-about | | Configure P2S VPN user IP pools with Azure CLI | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-user-groups-create-cli | | Generate and update P2S VPN client profiles in Azure | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-user-vpn-profile-update | | Configure macOS native VPN client for P2S certificates | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-cert-mac | | Configure Linux strongSwan IKEv2 client for P2S certificates | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-certificate-ike-linux | | Configure iOS OpenVPN client for P2S certificate VPN | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-certificate-openvpn-ios | | Configure Linux OpenVPN client for P2S certificate VPN | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-certificate-openvpn-linux | | Configure macOS OpenVPN client for P2S certificate VPN | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-certificate-openvpn-mac | | Configure Azure VPN Client on Windows for P2S certificates | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-certificate-windows-azure-vpn-client | | Configure Windows native client for P2S certificate VPN | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-certificate-windows-native | | Configure OpenVPN 2.x Windows client for P2S certificates | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-certificate-windows-openvpn-client | | Configure OpenVPN 3.x Windows client for P2S certificates | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-certificate-windows-openvpn-client-version-3 | | Configure VPN client for P2S RADIUS certificate auth | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-configuration-radius-certificate | | Configure VPN client for other P2S RADIUS methods | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-configuration-radius-other | | Configure VPN client for P2S RADIUS password auth | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-vpn-client-configuration-radius-password | | Configure high-bandwidth S2S tunnels via ExpressRoute | https://learn.microsoft.com/en-us/azure/vpn-gateway/site-to-site-high-bandwidth-tunnel | | Set up dual-stack site-to-site VPN with Azure CLI | https://learn.microsoft.com/en-us/azure/vpn-gateway/site-to-site-ipv6-azure-cli | | Configure forced tunneling for S2S VPN in Azure | https://learn.microsoft.com/en-us/azure/vpn-gateway/site-to-site-tunneling | | Understand Point-to-Site VPN routing behavior in Azure | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-point-to-site-routing | | Supported VPN devices and IPsec parameters for Azure | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-vpn-devices | | Azure VPN Gateway resource and connection settings | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-vpn-gateway-settings | | Configure BGP for VPN Gateway using PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-bgp-resource-manager-ps | | Generate P2S VPN certificates using Windows PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-certificates-point-to-site | | Generate P2S VPN certificates on Linux with strongSwan | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-certificates-point-to-site-linux | | Generate P2S VPN certificates using MakeCert | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-certificates-point-to-site-makecert | | Connect classic VNets to ARM VNets via VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-connect-different-deployment-models-portal | | Connect classic VNets to ARM VNets with PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-connect-different-deployment-models-powershell | | Configure route-based VPN to multiple policy-based devices | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-connect-multiple-policybased-rm-ps | | Configure Windows Always-On VPN device tunnel to Azure | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-always-on-device-tunnel | | Configure macOS Always-On VPN device tunnel to Azure | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-always-on-device-tunnel-macos | | Configure Windows Always-On VPN user tunnel to Azure | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-always-on-user-tunnel | | Configure certificate-based Point-to-Site VPN with PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-point-to-site-rm-ps | | Configure VNet-to-VNet VPN connections using Azure CLI | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-vnet-vnet-cli | | Configure VNet-to-VNet VPN connection in portal | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-vnet-vnet-resource-manager-portal | | Configure custom IPsec/IKE policies with PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-ipsecikepolicy-rm-powershell | | Advertise custom routes to P2S VPN clients | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-p2s-advertise-custom-routes | | Create VNet-to-VNet VPN connections with PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-vnet-vnet-rm-ps | | Configure and troubleshoot Azure VPN Gateway connections | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-vpn-faq |

Integrations & Coding Patterns

| Topic | URL | |-------|-----| | Configure NPS RADIUS VSAs for P2S user groups | https://learn.microsoft.com/en-us/azure/vpn-gateway/point-to-site-user-groups-radius | | Create Azure VPN S2S certificate tunnel with Azure CLI | https://learn.microsoft.com/en-us/azure/vpn-gateway/site-to-site-certificate-authentication-gateway-cli | | Configure S2S VPN over ExpressRoute private peering | https://learn.microsoft.com/en-us/azure/vpn-gateway/site-to-site-vpn-private-peering | | Sample Cisco ASA configuration for Azure VPN Gateway | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-3rdparty-device-config-cisco-asa | | Configure BGP VPN connection between Azure and AWS | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-aws-bgp |

Deployment

| Topic | URL | |-------|-----| | Migrate VPN Gateway Basic public IP to Standard | https://learn.microsoft.com/en-us/azure/vpn-gateway/basic-public-ip-migrate-about | | Migrate VPN Gateway public IP from Basic to Standard | https://learn.microsoft.com/en-us/azure/vpn-gateway/basic-public-ip-migrate-howto | | Create a Basic SKU VPN Gateway via PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/create-gateway-basic-sku-powershell | | Deploy zone-redundant VPN and ExpressRoute gateways | https://learn.microsoft.com/en-us/azure/vpn-gateway/create-zone-redundant-vnet-gateway | | Change Azure VPN Gateway between active and active-active | https://learn.microsoft.com/en-us/azure/vpn-gateway/gateway-change-active-active | | Upgrade Azure VPN Gateway SKU with minimal downtime | https://learn.microsoft.com/en-us/azure/vpn-gateway/gateway-sku-upgrade | | Create S2S VPN with shared key using PowerShell | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-create-site-to-site-rm-powershell | | Create S2S VPN with shared key using Azure CLI | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-site-to-site-resource-manager-cli | | Deploy Azure VPN client profiles using Intune | https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-profile-intune |