Azure Virtual Network Gateway: руководство по настройке VPN-туннеля

*Azure Virtual Network Gateway: VPN Tunnel Setup Guide* Connecting a physical office network to an Azure cloud environment requires passing encrypted traffic through a secure site-to-site IPsec VPN tunnel directly into an Azure Virtual Network. In this comprehensive technical guide, we break down the end-to-end architecture, pre-requisites, and deployment configuration required to establish a robust hybrid cloud bridge. Without proper pre-requisites—such as an active Azure subscription, a compatible on-premises VPN router, and a static external IPv4 address provided by your ISP—the cryptographic handshake will fail. Furthermore, misconfigurations in Azure subnets, IP address ranges, or shared keys will result in failed ping checks, routing black holes, and persistent connection errors. Follow this step-by-step walkthrough to successfully configure your GatewaySubnet, Virtual Network Gateway, Local Network Gateway, and IPsec connection resource. Key Technical Takeaways & Root-Cause Solutions: *GatewaySubnet Configuration:* You must create a dedicated subnet named exactly `GatewaySubnet` (with no spaces) in your Azure Virtual Network dashboard to inform Azure's backend systems where to place routing appliances. *Subnet Security Constraints:* Never apply a Network Security Group (NSG) or a User-Defined Route (UDR) to the `GatewaySubnet`. Doing so will block the gateway from functioning entirely. *CIDR Overlap Prevention:* Ensure your Azure GatewaySubnet CIDR block (e.g., `10.1.0.0/24`) and your Local Network Gateway address space do not overlap with your on-premises LAN ranges (e.g., `192.168.1.0/24`), otherwise traffic routing will fail. *Virtual Network Gateway Setup:* Deploy a Virtual Network Gateway resource with Gateway Type set to VPN, Routing Type set to Route-based, and select a Standard tier SKU (or an AZ SKU if your region supports availability zones for built-in hardware redundancy). *Static Public IP Provisioning:* Provision a dedicated static public IP address object specifically for the virtual network gateway to act as the cloud endpoint. *Local Network Gateway Mapping:* Create a Local Network Gateway acting as a map by entering your physical on-premises router public IP in the endpoint field and your local LAN CIDR blocks in the address space. *IPsec Connection & Pre-Shared Key (PSK):* Establish a site-to-site IPsec connection resource linking your Virtual Network Gateway and Local Network Gateway. Generate a secure, complex alphanumeric Shared Key (PSK) that must match character-for-character with the password configured on your physical on-premises router. *Verification & Status:* Configure your physical router using vendor IPsec documentation, perform ping tests across the tunnel, and verify that the Azure connection status transitions from Unknown to Connected. Video Chapters: 00:00 Introduction to Hybrid Cloud Site-to-Site VPN Architecture 00:20 Pre-requisites: Azure Subscription, Router, and Static IP 00:45 Step 1: Preparing the Cloud Network and Creating the GatewaySubnet 01:40 Step 2: Deploying the Virtual Network Gateway Resource 02:27 Step 3: Teaching the Cloud Your Physical Office via Local Network Gateway 03:11 Step 4: Establishing the IPsec Connection and Pre-Shared Key (PSK) 03:45 Step 5: Validating Pings and Confirming Connected Status 04:06 Advanced Networking: BGP Dynamic Routing and Point-to-Site VPNs If this architectural walkthrough helped you build a secure hybrid cloud tunnel, make sure to subscribe to @cloudexplainers for more advanced infrastructure guides. Drop your configuration questions or troubleshooting scenarios in the comments below! #Azure #VirtualNetwork #VPN #IPsec #CloudNetworking #DevOps #InfrastructureArchitecture #HybridCloud