![]() ![]() The route table is configured with the private IP address of the Azure Firewall as the virtual appliance. Select Refresh and verify Peering status is Connected.Ī route table will force all traffic leaving the spoke virtual network to the hub virtual network. Traffic forwarded from remote virtual network Use the following example to create a two-way network peering between the hub and spoke.Įnter or select the following information in Add peering: Setting Use the following example to create the spoke network.Ī virtual network peering is used to connect the hub to the spoke and the spoke to the hub. The spoke virtual network contains the test virtual machine used to test the routing of the internet traffic to the NAT gateway. Select AzureFirewallSubnet in Subnet name. In Outbound IP in Public IP addresses, select Create a new public IP address. In the Basics tab of Create network address translation (NAT) gateway enter or select the following information: Settingįor more information about availability zones, see NAT gateway and availability zones. ![]() Select NAT gateways in the search results. In the search box at the top of the portal, enter NAT gateway. Use the following example to create a NAT gateway for the hub and spoke network and associate it with the AzureFirewallSubnet. Create the NAT gatewayĪll outbound internet traffic will traverse the NAT gateway to the internet. When the virtual network is created as part of the deployment, you can proceed to the next steps. It will take a few minutes for the bastion host and firewall to deploy. ![]() In the Security tab in BastionHost, select Enable.Įnter or select the following information: Setting In Add subnet enter or select the following information: Setting In the IP Addresses tab in IPv4 address space, select the trash can to delete the address space that is auto populated. In the Basics tab of Create virtual network, enter or select the following information: Setting Select Virtual networks in the search results. In the search box at the top of the portal, enter Virtual network. Use the following example to create the hub virtual network. The hub virtual network contains the firewall subnet that is associated with the Azure Firewall and NAT gateway. An Azure account with an active subscription.Create a virtual machine to test the outbound connectivity through the NAT gateway.Create a firewall policy for the hub virtual network.Create a route table for the spoke virtual network.Create a NAT gateway and associate it with the firewall subnet in the hub virtual network.Create a hub virtual network and deploy an Azure Firewall and Azure Bastion during deployment.In this architectural setup, NAT gateway can provide outbound connectivity from the hub virtual network for all spoke virtual networks peered. The workload servers are peered virtual networks in the same region as the hub virtual network where the firewall resides. For production deployments, a hub and spoke network is recommended, where the firewall is in its own virtual network. NAT gateway can be integrated with Azure Firewall by configuring NAT gateway directly to the Azure Firewall subnet in order to provide a more scalable method of outbound connectivity. NAT gateway provides 64,512 SNAT ports per public IP address and can be used with up to 16 public IP addresses. A better method for outbound connectivity is to use NAT gateway. You may also require the use of fewer public IPs while also requiring more SNAT ports. Depending on your architecture requirements and traffic patterns, you may require more SNAT ports than what Azure Firewall can provide. You can associate up to 250 public IP addresses to Azure Firewall. In this tutorial, you’ll learn how to integrate a NAT gateway with an Azure Firewall in a hub and spoke networkĪzure Firewall provides 2,496 SNAT ports per public IP address configured per backend Virtual Machine Scale Set instance (minimum of two instances). ![]()
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