Step-by-Step Guide to Configuring Express Route for Azure139

ExpressRoute is a dedicated private connection between Microsoft Azure and your on-premises infrastructure. It provides a high-performance, low-latency connection to Azure services, applications, and infrastructure. This guide will show you how to configure ExpressRoute in Azure, step-by-step.

Prerequisites
An Azure subscription
A colocation facility with an Azure ExpressRoute presence
A router that supports ExpressRoute

Step 1: Create an ExpressRoute Circuit

Log in to the Azure portal and navigate to the ExpressRoute service. Click on the + Create button and select ExpressRoute Circuit. Enter the following information:
Name: The name of the ExpressRoute circuit
Subscription: The Azure subscription to create the circuit in
Resource group: The resource group to create the circuit in
Location: The Azure region where the circuit will be created
Bandwidth: The desired bandwidth for the circuit
SKU: The type of ExpressRoute circuit
Peering location: The colocation facility where the circuit will be connected

Click on the Create button to create the circuit.

Step 2: Configure the ExpressRoute Gateway

Once the circuit is created, you need to configure the ExpressRoute gateway. This is the device that will connect your on-premises network to the Azure network. To configure the gateway, you will need to provide the following information:
Gateway type: The type of gateway you are using (e.g., Juniper MX104)
Gateway IP address: The IP address of the gateway
Gateway MAC address: The MAC address of the gateway

Click on the Save button to save the gateway configuration.

Step 3: Create a Virtual Network Gateway

Now you need to create a virtual network gateway in Azure. This gateway will connect your on-premises network to the Azure virtual network. To create the gateway, navigate to the Virtual Network Gateway service in the Azure portal and click on the + Create button. Enter the following information:
Name: The name of the virtual network gateway
Subscription: The Azure subscription to create the gateway in
Resource group: The resource group to create the gateway in
Location: The Azure region where the gateway will be created
Gateway type: The type of virtual network gateway
Public IP address: The public IP address of the gateway

Click on the Create button to create the gateway.

Step 4: Connect the ExpressRoute Circuit to the Virtual Network Gateway

Now you need to connect the ExpressRoute circuit to the virtual network gateway. To do this, navigate to the ExpressRoute Circuit service in the Azure portal and select the circuit you created earlier. Click on the Peerings tab and click on the + Peer button. Enter the following information:
Peering type: The type of peering (e.g., Microsoft peering)
Virtual network gateway: The virtual network gateway to peer with

Click on the Save button to save the peering configuration.

Step 5: Verify the Connection

Once the peering configuration is saved, you can verify the connection by navigating to the Virtual Network Gateway service in the Azure portal. Select the gateway you created earlier and click on the Monitor tab. You should see the following information:
Connection status: Connected
Data transfer: The amount of data that has been transferred through the connection

If you are able to see this information, then your ExpressRoute connection is configured correctly.

Conclusion

In this guide, we showed you how to configure ExpressRoute in Azure, step-by-step. By following these steps, you can create a high-performance, low-latency connection between your on-premises infrastructure and Azure.

2025-01-05

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