1---2name: azure-virtual-network3description: Expert knowledge for Azure Virtual Network development including best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, and deployment. Use when configuring VNet peering, service endpoints, NSGs, MANA/CNI networking, or upgrading Basic to Standard IPs, and other Azure Virtual Network related development tasks. Not for Azure Application Network (use azure-application-network), Azure Networking (use azure-networking), Azure Virtual Network Manager (use azure-virtual-network-manager), Azure Virtual WAN (use azure-virtual-wan).4---5# Azure Virtual Network Skill67This skill provides expert guidance for Azure Virtual Network. Covers best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.89## How to Use This Skill1011> **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 file1213> **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)1415This 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.1819## Category Index2021| Category | Lines | Description |22|----------|-------|-------------|23| Best Practices | L35-L43 | Designing secure, high-performance VNets: outbound VM access control, NSG rules/flows, VM throughput tuning, TCP/IP optimization, and secure use of VNet service endpoints. |24| Decision Making | L44-L53 | Guidance on choosing VNet-related options: MANA support for VM sizes, upgrading Basic to Standard public IPs, routing preference and unmetered CDN traffic, cost trade-offs, and VNet integration for isolation. |25| Architecture & Design Patterns | L54-L60 | Designing VNet architectures: subnet extension for migrations, VNet peering, hybrid two-tier apps, traffic mirroring with TAP, topology planning, and custom routing options. |26| Limits & Quotas | L61-L68 | Network resource limits and behaviors for Azure VMs/VNets: accelerated networking support, public IP quotas, VM throughput caps, and Virtual Network scale/performance constraints. |27| Security | L69-L77 | Securing virtual networks: Kubernetes network policies, NSG/policy-based controls, VNet encryption, and restricting storage egress with service endpoint policies. |28| Configuration | L78-L113 | Configuring Azure VNets: IPs (public/private, prefixes, IPv4/IPv6), DNS, MTU, DHCP, subnet delegation/peering, monitoring, and CNI/MANA networking for VMs, NVAs, Kubernetes, and PaaS. |29| Deployment | L114-L117 | Guidance for upgrading Azure Basic public IP addresses to Standard SKU, including requirements, steps, and considerations for network resources and downtime. |3031### Best Practices32| Topic | URL |33|-------|-----|34| Apply Azure Virtual Network design best practices | https://learn.microsoft.com/en-us/azure/virtual-network/concepts-and-best-practices |35| Configure Azure NSG rules and traffic processing | https://learn.microsoft.com/en-us/azure/virtual-network/network-security-group-how-it-works |36| Optimize Azure VM network throughput settings | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-optimize-network-bandwidth |37| Implement Azure virtual network service endpoints securely | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-service-endpoints-overview |38| Apply TCP/IP performance tuning on Azure VMs | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-tcpip-performance-tuning |3940### Decision Making41| Topic | URL |42|-------|-----|43| Decide MANA support for existing Azure VM sizes | https://learn.microsoft.com/en-us/azure/virtual-network/accelerated-networking-mana-existing-sizes |44| Upgrade Azure Basic public IPs to Standard SKU | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/public-ip-basic-upgrade-guidance |45| Choose Azure routing preference via Microsoft or ISP network | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/routing-preference-overview |46| Use routing preference unmetered for Azure-to-CDN traffic | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/routing-preference-unmetered |47| Optimize Azure Virtual Network costs and trade-offs | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-cost-optimization |48| Choose Azure VNet integration options for service isolation | https://learn.microsoft.com/en-us/azure/virtual-network/vnet-integration-for-azure-services |4950### Architecture & Design Patterns51| Topic | URL |52|-------|-----|53| Design subnet extension strategies for Azure migrations | https://learn.microsoft.com/en-us/azure/virtual-network/subnet-extension |54| Implement hybrid two-tier application with Azure VNets | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-scenario-udr-gw-nva |55| Plan Azure virtual network topology and connectivity | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-vnet-plan-design-arm |5657### Limits & Quotas58| Topic | URL |59|-------|-----|60| Understand limits and support for Azure Accelerated Networking | https://learn.microsoft.com/en-us/azure/virtual-network/accelerated-networking-overview |61| Create Azure VM with static public IP and understand IP limits | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/virtual-network-static-public-ip |62| Understand Azure VM network throughput limits | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-machine-network-throughput |63| Understand Azure Virtual Network limits and behaviors | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-faq |6465### Security66| Topic | URL |67|-------|-----|68| Configure Kubernetes network policies on Azure | https://learn.microsoft.com/en-us/azure/virtual-network/kubernetes-network-policies |69| Apply security controls to Azure Virtual Network deployments | https://learn.microsoft.com/en-us/azure/virtual-network/secure-virtual-network |70| Apply Azure Policy compliance controls to Virtual Network | https://learn.microsoft.com/en-us/azure/virtual-network/security-controls-policy |71| Configure and manage Azure Virtual Network encryption | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-encryption-faq |72| Secure Azure Storage egress with service endpoint policies | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-service-endpoint-policies-overview |7374### Configuration75| Topic | URL |76|-------|-----|77| Configure Azure Network Adapter (MANA) for Linux VMs | https://learn.microsoft.com/en-us/azure/virtual-network/accelerated-networking-mana-linux |78| Configure MANA behavior for NVAs on existing VM sizes | https://learn.microsoft.com/en-us/azure/virtual-network/accelerated-networking-mana-network-virtual-appliance-opt-out |79| Configure Azure CNI for Kubernetes virtual networks | https://learn.microsoft.com/en-us/azure/virtual-network/deploy-container-networking |80| Install and configure Azure CNI on Linux Docker hosts | https://learn.microsoft.com/en-us/azure/virtual-network/deploy-container-networking-docker-linux |81| Configure advertised gateway prefixes for hub VNets | https://learn.microsoft.com/en-us/azure/virtual-network/how-to-advertised-gateway-prefixes |82| Configure subnet peering in Azure virtual networks | https://learn.microsoft.com/en-us/azure/virtual-network/how-to-configure-subnet-peering |83| Create and configure an encrypted Azure virtual network | https://learn.microsoft.com/en-us/azure/virtual-network/how-to-create-encryption |84| Deploy a DHCP server VM for on-premises clients | https://learn.microsoft.com/en-us/azure/virtual-network/how-to-dhcp-azure |85| Configure MTU settings for Azure virtual machines | https://learn.microsoft.com/en-us/azure/virtual-network/how-to-virtual-machine-mtu |86| Configure public IP addresses for Azure Application Gateway frontends | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/configure-public-ip-application-gateway |87| Configure public IP addresses for Azure Firewall deployments | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/configure-public-ip-firewall |88| Configure public IP usage with Azure Load Balancer | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/configure-public-ip-load-balancer |89| Configure public IPs with Azure NAT Gateway for outbound SNAT | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/configure-public-ip-nat-gateway |90| Manage public IP addresses for Azure Virtual Machines | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/configure-public-ip-vm |91| Configure public IP addresses for Azure VPN gateways | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/configure-public-ip-vpn-gateway |92| Onboard and configure custom IPv6 address prefixes in Azure | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/create-custom-ip-address-prefix-ipv6-portal |93| Onboard and configure custom IPv4 address prefixes in Azure | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/create-custom-ip-address-prefix-portal |94| Configure default outbound access for Azure VMs | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/default-outbound-access |95| Manage Azure custom IP address prefixes and migrations | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/manage-custom-ip-address-prefix |96| Create and manage Azure public IP address prefixes | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/manage-public-ip-address-prefix |97| Configure monitoring and alerts for Azure Public IP addresses | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/monitor-public-ip |98| Use Azure Monitor metrics for Public IP addresses | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/monitor-public-ip-reference |99| Configure Azure public IP address prefixes and zones | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/public-ip-address-prefix |100| Configure private and public IPs on Azure network interfaces | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/virtual-network-network-interface-addresses |101| Configure and manage Azure public IP addresses | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/virtual-network-public-ip-address |102| Configure monitoring for Azure Virtual Network with Azure Monitor | https://learn.microsoft.com/en-us/azure/virtual-network/monitor-virtual-network |103| Reference for Azure Virtual Network monitoring data | https://learn.microsoft.com/en-us/azure/virtual-network/monitor-virtual-network-reference |104| Use built-in Azure Policy definitions for Virtual Network | https://learn.microsoft.com/en-us/azure/virtual-network/policy-reference |105| Configure subnet delegation for Azure PaaS services | https://learn.microsoft.com/en-us/azure/virtual-network/subnet-delegation-overview |106| Set up dynamic DNS registration for Azure VMs | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-name-resolution-ddns |107| Configure DNS name resolution for Azure virtual networks | https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-name-resolution-for-vms-and-role-instances |108| Understand and configure Azure IP 168.63.129.16 usage | https://learn.microsoft.com/en-us/azure/virtual-network/what-is-ip-address-168-63-129-16 |109110### Deployment111| Topic | URL |112|-------|-----|113| Upgrade Azure Basic public IPs to Standard SKU | https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/public-ip-upgrade |
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