{"product_id":"azure-s2s-vpn-arm-reusable-template","title":"Azure S2S VPN ARM Template Ready-to-Deploy Reusable Solution","description":"\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/7884\/9634\/files\/4-24-2026_ARM_ITCloudAcademy_Logo_597c5d71-6d33-4e22-9621-0963a38a0b42.png?v=1777097654\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis repository contains a production-ready Azure Resource Manager (ARM) template designed to deploy a complete Site-to-Site (S2S) VPN infrastructure in Microsoft Azure.\u003c\/p\u003e\n\u003cp\u003eThe solution enables secure communication between an Azure Virtual Network and an on-premises network via an IPSec VPN tunnel.\u003c\/p\u003e\n\u003cp\u003eThe template is fully parameterized and validated using Azure-native testing mechanisms to ensure deployment reliability and consistency across environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. What This Template Deploys\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis ARM template provisions the following Azure resources:\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eVirtual Network (VNet)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eCustom address space defined via parameters\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eIncludes required GatewaySubnet\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eGateway Subnet\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eDedicated subnet named GatewaySubnet\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eRequired for VPN Gateway deployment\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eConfigurable CIDR range\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003ePublic IP Address\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eStandard SKU\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eStatic allocation\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eUsed by the VPN Gateway\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eVirtual Network Gateway\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eVPN Gateway (Route-based)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eSupports IPSec\/IKE (IKEv2 by default)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eConfigurable SKU (VpnGw1–VpnGw5)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eSupports Generation1 and Generation2\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eLocal Network Gateway\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eRepresents on-premises VPN device\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eStores public IP and on-prem address spaces\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eVPN Connection\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eIPSec tunnel between Azure and on-prem\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eUses shared key authentication\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eConfigurable protocol (IKEv1\/IKEv2)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eIncludes Dead Peer Detection (DPD)\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Architecture Summary\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAzure VNet contains a dedicated GatewaySubnet where the VPN Gateway is deployed.\u003cbr\u003eThe VPN Gateway connects to an on-premises network via the Local Network Gateway using an IPSec tunnel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis architecture supports:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHybrid cloud connectivity\u003cbr\u003eSecure data transfer between environments\u003cbr\u003eEnterprise-grade network integration\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Prerequisites\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore using this template, ensure the following:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAzure Requirements:\u003c\/strong\u003e\u003cbr\u003eActive Azure Subscription\u003cbr\u003eContributor or Owner Permissions on the RG\u003cbr\u003eAzure CLI installed or Azure Cloud Shell access\u003cbr\u003eNetworking Requirements\u003cbr\u003eNon-overlapping IP Address ranges between Azure and On-Premises Networks\u003cbr\u003eValid public IP Address for the On-Premises VPN device\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFirewall configured to allow:\u003c\/strong\u003e\u003cbr\u003eUDP 500 (IKE)\u003cbr\u003eUDP 4500 (IPSec NAT-T)\u003cbr\u003eDesign Requirements\u003cbr\u003eGatewaySubnet must be named exactly GatewaySubnet\u003cbr\u003eRecommended subnet size:\u003cbr\u003eMinimum: \/27\u003cbr\u003eRecommended: \/26 for scalability\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5. Files Included\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003etemplate.json\u003c\/span\u003e\u003cbr\u003eMain ARM template defining all Azure resources\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eparameters.json\u003c\/span\u003e\u003cbr\u003eParameter file containing environment-specific values\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003edeploy.ps1\u003c\/span\u003e\u003cbr\u003eOptional deployment automation script\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6. Deployment Instructions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 1: Upload Files\u003c\/strong\u003e\u003cbr\u003eUpload template.json and parameters.json to Azure Cloud Shell or local environment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 2: Validate Template\u003c\/strong\u003e\u003cbr\u003eaz deployment group validate \\\u003cbr\u003e  --resource-group RG-ARM-TEMPLATES \\\u003cbr\u003e  --template-file template.json \\\u003cbr\u003e  --parameters parameters.json\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 3: Run WHAT-IF (Recommended)\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eaz deployment group what-if \\\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e  --resource-group RG-ARM-TEMPLATES \\\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e  --template-file template.json \\\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e  --parameters parameters.json\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 4: Deploy (Optional)\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eaz deployment group create \\\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e  --resource-group RG-ARM-TEMPLATES \\\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e  --template-file template.json \\\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e  --parameters parameters.json\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7. Testing and Validation (Completed)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe following validation steps were successfully performed:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eTemplate Validation\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eJSON Syntax Verified\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eARM Schema Compliance Confirmed\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eResource Definitions Validated\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eParameter Validation\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eAll Parameters Correctly Mapped\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eData Types Validated (String, Array, Object, secureString)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eNo Missing or Mismatched Parameters\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eAzure WHAT-IF Validation\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eAzure Control Plane Accepted the Configuration\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eResource Dependencies Resolved Correctly\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eNo policy or RBAC Conflicts Detected\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eNo Runtime Validation Errors\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eExpected Result output:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eResource changes: 5 to create\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eResources identified:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eVirtual Network\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003ePublic IP Address\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eVirtual Network Gateway\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eLocal Network Gateway\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eVPN Connection\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis confirms the template is:\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eDeployable\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eStructurally correct\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eAzure-compliant\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e8. Important Notes\u003c\/strong\u003e\u003cbr\u003eVPN Gateway deployment takes approximately 30–45 minutes\u003cbr\u003eVPN connection status will remain NotConnected until a real on-prem device is configured\u003cbr\u003eThis template validates infrastructure deployment only, not network connectivity\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e9. Security Considerations\u003c\/strong\u003e\u003cbr\u003eShared Key is defined in the Parameters File for Testing Purposes\u003cbr\u003e\u003cstrong\u003eFor Production:\u003c\/strong\u003e\u003cbr\u003eUse Azure Key Vault\u003cbr\u003eAvoid storing secrets in plain text\u003cbr\u003eRotate keys regularly\u003cbr\u003e10. Limitations\u003cbr\u003eDoes not deploy on-prem VPN device\u003cbr\u003eDoes not validate tunnel connectivity\u003cbr\u003eDoes not include diagnostic settings or monitoring\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e11. Best Practices Implemented\u003c\/strong\u003e\u003cbr\u003eFull parameterization for reusability\u003cbr\u003eUse of Standard SKU Public IP\u003cbr\u003eRoute-based VPN configuration\u003cbr\u003eExplicit dependency management\u003cbr\u003eTagging support for governance\u003cbr\u003eSecureString usage for sensitive values\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e12. Conclusion\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis ARM template provides a fully validated, enterprise-ready foundation for deploying Azure Site-to-Site VPN infrastructure. All pre-deployment validation steps have been successfully completed using Azure-native tools, ensuring the template can be deployed without errors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e13. Next Steps\u003c\/strong\u003e\u003cbr\u003eDeploy the template in a Test Environment\u003cbr\u003eConfigure On-Prem VPN Device\u003cbr\u003eValidate Connectivity and Routing\u003cbr\u003eExtend with Monitoring and Diagnostics\u003cbr\u003eIntegrate into CI\/CD Pipelines\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif; mso-bidi-font-weight: normal;\"\u003eSupport\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif;\"\u003e\u003cbr\u003eFor questions or custom template requests, please contact:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif;\"\u003eITCloudAcademy Support Team\u003cbr\u003eEmail: \u003c\/span\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif; color: #2b00ff;\"\u003esupport@ITCloudAcademy.n\u003c\/span\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif;\"\u003eet\u003cbr\u003eEmail: \u003c\/span\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif; color: #2b00ff;\"\u003einfo@ITCloudAcademy.net\u003c\/span\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif;\"\u003e\u003cbr\u003eWebsite: \u003c\/span\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif; color: #2b00ff;\"\u003ehttp:\/\/www.itcloudacademy.net\u003c\/span\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif; mso-bidi-font-weight: normal;\"\u003eSupport Hours:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-family: 'Univers Condensed',sans-serif;\"\u003e\u003cbr\u003eMonday to Friday\u003cbr\u003e9:00 AM to 6:00 PM MST\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/7884\/9634\/files\/4-24-26_Custom_Azure_ARM_Templates_Service.jpg?v=1777096687\" alt=\"\"\u003e\u003ca href=\"https:\/\/www.itcloudacademy.net\/collections\/azure-custom-arm-templates\"\u003e\u003cspan style=\"font-family: 'Univers Condensed', sans-serif; color: rgb(43, 0, 255);\"\u003eNeed a custom Azure ARM template? Visit our Azure Custom ARM Templates page for details and services.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"ITCloudAcademy","offers":[{"title":"Default Title","offer_id":42831836905570,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/7884\/9634\/files\/4-23-2026ReusableAzureARMTemplates_d2052697-1460-4ddd-ae58-206c2114684e.png?v=1777172137","url":"https:\/\/www.itcloudacademy.net\/products\/azure-s2s-vpn-arm-reusable-template","provider":"ITCloudAcademy","version":"1.0","type":"link"}