498 questions with Azure ExpressRoute tags

Sort by: Updated
2 answers One of the answers was accepted by the question author.

Azure VNet Gateway SKU Migration Causing Loss of On‑Prem Connectivity

My Azure VMs connect to on‑premises servers through ExpressRoute. Recently, I needed to perform a SKU migration on the virtual network gateway. I used the SKU migration tool, and after the traffic migrated to the new gateway, the connection between my…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2026-03-21T17:02:38.8766667+00:00
Htin Aung 20 Reputation points
accepted 2026-03-31T03:03:08.9333333+00:00
Htin Aung 20 Reputation points
1 answer

Service Provider is unresponsive to de-provision request for ExpressRoute.

Our organization terminated eLynk/EVC service with Service Provider (Lumen/Century Link) in October of 2023. Physical circuits were disconnected and our organization moved out of service address. Despite multiple written requests via email and ticket…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2026-03-16T14:47:56.82+00:00
Sebastian Hernandez 0 Reputation points
answered 2026-03-30T10:24:49.26+00:00
Ganesh Patapati 11,835 Reputation points Microsoft External Staff Moderator
3 answers

Asymmetric Routing Issue with ExpressRoute – Return Traffic via Internet Instead of ER (Selective Routing Required

I am working on a hybrid Azure environment with ExpressRoute connectivity to on-premises (Palo Alto firewall), and I am facing an asymmetric routing issue impacting SIP-based applications (IPFX softphone / mobility clients). Current Setup: Azure VNet…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2026-03-17T11:56:39.4466667+00:00
Sagar Sapkota 0 Reputation points
answered 2026-03-25T17:35:32.3933333+00:00
Ganesh Patapati 11,835 Reputation points Microsoft External Staff Moderator
1 answer

Virtual Hub Route Selection Algorithm - Where does routingWeight fit in?

Hi, I was reading the official documentation on the Virtual Hub Route Selection Algorithm and noticed that routingWeight (configurable per ExpressRoute/VPN connection on the virtual hub) is not mentioned anywhere in the documented selection steps. The…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2026-02-23T16:42:37.1666667+00:00
Peter Stieber 65 Reputation points
answered 2026-02-23T17:09:09.29+00:00
Vallepu Venkateswarlu 6,995 Reputation points Microsoft External Staff Moderator
3 answers

how to raise a support case with Azure to investigate the new express route connection that is not showing arp?

Hello, How can we raise a support case with Azure for the new express route connectivity that we have configured? We can not see any link on the Azure portal that takes to raise the support case. The service has physical connections end-to-end, however…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2026-02-03T15:37:04.7233333+00:00
Mehul PatelAZR 0 Reputation points
answered 2026-02-03T16:10:12.4633333+00:00
Ravi Varma Mudduluru 9,440 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Move ExpressRoute circuit to new subscription

Hi, I have an ExpressRoute circuit that need to be move from it's subscription to a new one. A simple "move to another subscription" is not supported. I see I can create a new circuit by importing the service key but this process seems to…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2021-02-17T09:42:24.123+00:00
Charles-Antoine Gagnon 21 Reputation points
commented 2026-02-03T05:26:42.4533333+00:00
Chinnaraja V 45 Reputation points
1 answer

ExpressRoute Architecture: Advertising Azure Public IP Prefix to On-Premises via BGP

We need Azure VMs to communicate with on‑premises systems over ExpressRoute, but the on‑premises firewall requires all Azure traffic to arrive using a public IP source. The on‑prem routers must also learn this same public prefix through BGP on…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2026-02-02T00:31:13.5333333+00:00
CascadeITS 20 Reputation points
answered 2026-02-02T01:16:42.4433333+00:00
Venkatesan S 6,435 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

ExpressRoute incorrectly showing Provisioned status. Unable to remove.

We have an ExpressRoute circuit that stuck in Provisioning state (on Azure). The Connection was successfully decommissioned on the Provider's end, however this has not updated the circuit's state on Azure. Currently the resource is billable, and…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2026-01-13T20:56:00.7833333+00:00
a2300 20 Reputation points
accepted 2026-01-31T00:27:53.7733333+00:00
a2300 20 Reputation points
1 answer

50% of all connections over express route fails

50% of all connections between onprem and Azure via Express Route fails. In Azure we have deployed some Linux VMs to same VNET in which ExpressRoute Gateway exists without any NSGs or UDRs. All resources are deployed in Switzerland North. Express Route…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2026-01-13T16:00:11.3033333+00:00
Stephan Kaufmann 0 Reputation points
answered 2026-01-13T18:35:04.3866667+00:00
Thanmayi Godithi 8,545 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Why is a public IP address needed for Express Route Gateway

Express route provides a private connection between on premise data center and Azure. Since traffic does not go over the Internet, why is a public address needed for the Express Route Gateway? I would expect the Express Route Gateway to use an IP address…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2022-04-10T02:45:30.827+00:00
Tyrone Paige 41 Reputation points Microsoft Employee
commented 2026-01-13T11:17:56.7733333+00:00
Cecatom42 0 Reputation points
1 answer

Peer Asn already exists with different name

i want to peer with microsoft via public exchange and need peerasn to be deployed first. when I deploy peerasn to associate my ASN with my subscription, it is failed with message Peer Asn already exists with different name

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-07-28T05:13:03.78+00:00
Dutakom Wibawa Putra 0 Reputation points
edited the question 2026-01-08T12:58:52.1666667+00:00
LauraC 245 Reputation points Admin
1 answer

Azure Peering Error "Peer ASN already exists with different account"

I got error when trying to register my ASN to my subscription. The Operation ID is /subscriptions/62ae63ab-b674-46c9-b0bd-89d2ac50fa90/providers/Microsoft.Resources/deployments/Microsoft.Peering/operations/7447C0A0F590DB44 { "status":…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-07-31T08:51:32.0933333+00:00
Dutakom Wibawa Putra 0 Reputation points
edited the question 2026-01-08T12:58:17.46+00:00
LauraC 245 Reputation points Admin
2 answers

Event Hubs "No data to display" screen

I have a user who receives the "No data to display" screen when trying to "View events" in an Azure Event Hubs Namespace, but he has all three Azure Event Hubs Data Roles. I've tried multiple Role combinations and still no…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-12-02T14:50:58.2833333+00:00
Michael Bracey 0 Reputation points
commented 2025-12-30T07:14:41.32+00:00
Siddhesh Desai 5,130 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Express Route gateway in spoke Vnet

Hello, We have a legacy hub and spoke with an Azure Firewall in the hub. On a separate Vnet we have an Express Route gateway that we would like to use to create hybrid connectivity from onprem to all the spokes.One option could be to peer the Vnet that…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-12-23T08:04:30.4966667+00:00
Andrea Pasquino 40 Reputation points
accepted 2025-12-26T09:27:35.85+00:00
Andrea Pasquino 40 Reputation points
2 answers

How can i achieve forced tunnelling using UDR in azure when using azure firewall along with express route for on-prem connectivity.

In my tenant, I have 2 virtual network gateways (VNG) of type ExpressRoute, across 2 environments (env-1 & env-2) with the circuit being shared across both of them. The 1st VNG is part of an environment (env-1) which has VMs & services with…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-12-16T17:04:40.1866667+00:00
Gourishankar Menon 40 Reputation points
edited an answer 2025-12-19T21:52:26.4766667+00:00
Ravi Varma Mudduluru 9,440 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

ExpressRoute Microsoft Peering.

I need clarification from Microsoft regarding supported and unsupported configurations for ExpressRoute Microsoft Peering. Please confirm the following: 1 Can a single ExpressRoute circuit support more than one independent Microsoft Peering configuration…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-12-02T18:17:49.2133333+00:00
CascadeITS 20 Reputation points
accepted 2025-12-05T20:52:44.85+00:00
CascadeITS 20 Reputation points
1 answer

How to resolve the Unreachable problem within ExpressRoute circuit

1,The virtual machine(Eden4) in ExpressRoute circuit virtual netwok is unable to access the specified address (192.xx.233:13202) by ExpressRouteCircuit's Azure Private Peering. 2,The virtual machine(Eden4) is also unable to access the on-premises IP…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-11-26T12:17:22.09+00:00
DONG CHEN 0 Reputation points
answered 2025-11-26T16:20:17.8733333+00:00
Vallepu Venkateswarlu 6,995 Reputation points Microsoft External Staff Moderator
2 answers

How to set up connectivity, to get a Microsoft OneDrive and Microsoft 365 using through the Azure Express Route service?

How to set up connectivity, to get a Microsoft OneDrive and Microsoft 365 using through the Azure Express Route service?

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-11-17T09:48:10.6066667+00:00
Lightstorm 0 Reputation points
edited an answer 2025-11-21T10:06:56.0266667+00:00
Ravi Varma Mudduluru 9,440 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

How to setup forced tunneling when using shared express route circuit & azure firewall ?

I am looking for some advise on how to setup forced tunneling when using a shared express route circuit. Setup : I have a hub and spoke environment with Azure firewall & Virtual Network Gateway (Express) (for on-prem connecitivty) deployed in the…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-11-13T16:22:25.8133333+00:00
Gourishankar Menon 40 Reputation points
accepted 2025-11-18T13:10:22.5966667+00:00
Gourishankar Menon 40 Reputation points
2 answers

Azure Hub-Spoke: Spoke VM to On-Prem (VDC) traffic works, but reverse traffic fails via Sophos NVA

I have a Hub-and-Spoke architecture in Azure with a Sophos firewall (NVA) acting as the transit gateway between my Spokes and on-prem (VDC) via ExpressRoute. There is a load balancer — it’s a High Availability Active-Active Sophos instance setup with…

Azure ExpressRoute
Azure ExpressRoute

An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.

498 questions
asked 2025-11-11T12:15:11.2833333+00:00
Pratima Patil 50 Reputation points
answered 2025-11-11T18:21:52.7733333+00:00
Anonymous