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create-bgp-peering-hub-portal.md

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title Configure BGP peering to an NVA: Azure portal
titleSuffix Azure Virtual WAN
description Learn how to create a BGP peering with Virtual WAN hub router.
author cherylmc
ms.service azure-virtual-wan
ms.topic how-to
ms.date 10/30/2023
ms.author cherylmc
ms.custom sfi-image-nochange

Configure BGP peering to an NVA - Azure portal

This article helps you configure an Azure Virtual WAN hub router to peer with a Network Virtual Appliance (NVA) in your virtual network using BGP Peering using the Azure portal. The virtual hub router learns routes from the NVA in a spoke VNet that is connected to a virtual WAN hub. The virtual hub router also advertises the virtual network routes to the NVA. For more information, see Scenario: BGP peering with a virtual hub. You can also create this configuration using Azure PowerShell.

:::image type="content" source="./media/create-bgp-peering-hub-portal/diagram.png" alt-text="Diagram of configuration." lightbox="./media/create-bgp-peering-hub-portal/diagram.png":::

Prerequisites

Verify that you've met the following criteria before beginning your configuration:

[!INCLUDE Before you begin]

Create a virtual WAN

[!INCLUDE Create a virtual WAN]

Create a hub

A hub is a virtual network that can contain gateways for site-to-site, ExpressRoute, or point-to-site functionality. Once the hub is created, you'll be charged for the hub, even if you don't attach any sites.

[!INCLUDE Create a hub]

Once you have the settings configured, click Review + Create to validate, then click Create. The hub will begin provisioning. After the hub is created, go to the hub's Overview page. When provisioning is completed, the Routing status is Provisioned.

Connect the VNet to the hub

After your hub router status is provisioned, create a connection between your hub and VNet.

[!INCLUDE Connect a VNet to a hub]

Configure a BGP peer

  1. Sign in to the Azure portal.

  2. On the portal page for your virtual WAN, in the left pane, select Hubs to view the list of hubs. Click a hub to configure a BGP peer.

  3. On the Virtual Hub page, in the left pane, select BGP Peers. On the BGP Peers page, click + Add to add a BGP peer.

    :::image type="content" source="./media/create-bgp-peering-hub-portal/bgp-peers.png" alt-text="Screenshot of BGP Peers page.":::

  4. On the Add BGP Peer page, complete the following fields.

    • Name – Resource name to identify a specific BGP peer.
    • ASN – The ASN for the BGP peer.
    • IPv4 address – The IPv4 address of the BGP peer.
    • Virtual Network connection – Choose the connection identifier that corresponds to the Virtual network that hosts the BGP peer.

  5. Click Add to complete the BGP peer configuration. You can view the peer on the BGP Peers page.

    :::image type="content" source="./media/create-bgp-peering-hub-portal/view-peer.png" alt-text="Screenshot of the BGP peers page with the new peer.":::

  6. On the virtual hub resource, you'll see two IP addresses under "virtualRouterIps". It is required to peer with both these addresses and advertise the same routes to both these addresses. This ensures that the routes are successfully advertised to your virtual hub.

Modify a BGP peer

  1. On the Virtual Hub resource, go to the BGP Peers page.
  2. Select the BGP peer.
  3. Click … at the end of the line for the peer, then select Edit from the dropdown.
  4. On the Edit BGP Peer page, make any necessary changes, then click Add.

Delete a BGP peer

  1. On the Virtual Hub resource, go to the BGP Peers page.
  2. Select the BGP peer.
  3. Click … at the end of the line for the peer, then select Delete from the dropdown.
  4. Click Confirm to confirm that you want to delete this resource.

Next steps

For more information about BGP scenarios, see Scenario: BGP peering with a virtual hub.