Hub & Spoke, what is the recommended hub size?
In designing a virtual network (VNet) for a hub in a hub & spoke model, what is the recommended size for the hub? Should it be a /20, /22, or /23? Any advice or best practices would be appreciated, especially since the official Microsoft…
How to complete Virtual network gateway sku migration, Failure at the Prepare step. Validation passes.
Having an issue with the Azure ExpressRoute virtual network gateway sku migration following the steps in this article: https://learn.microsoft.com/en-us/azure/expressroute/expressroute-howto-gateway-migration-portal Validation passes, I am getting an…
User Defined Route
Hi All, I have created S2S connection to my on-prem network i want to communicate to my on-prem ssms using databricks injectd in same VNET. Do i need to use UDRs here or azure will take care of routing? I am reading online but wanted to confirm.

Cloud Shell Fails to Launch with Hybrid Connection in Virtual Network
I'm trying to launch Cloud Shell with a hybrid connection in a virtual network, but I'm encountering an error message and the terminal won't start. The error message is as follows: Sorry, your Cloud Shell failed to provision:…
Azure CX3 interface no more working with DPDK apps in "France central" region
Hi, CX3 accelerated interfaces are not working anymore with DPDK application in VM spawned on "France central" region. The exact same configuration works in "West US 2" region. Further checking shows IBVerbs was not present in these…
vnet to vnet NSG entry
All, I setup Azure Databricks on my subscription and it is working. However, I'm trying to understand networking aspects of it better. Below is a screenshot of the NSG and I have a question. For the Inbound Security Rules, the 100 row has source…
Retirement Announcement - Basic SKU Public IP addresses will be retired on 30 September 2025
Basic SKU Public IP addresses will be deprecated on September 30, 2025. Below are timelines to keep in mind for deprecation: March 31, 2025 - Last day to create new Basic SKU Public IP addresses. After this date, you will not be able to create new…
Azure Virtual Network: Cross-Tenant Vnet-to-Vnet Connection Fails with 'InternalRetriableError
We have been using New-AzVirtualNetworkGatewayConnection to establish cross tenant Vnet-to-Vnet connections for years, and even one a few months ago. Now we are getting an error message: New-AzVirtualNetworkGatewayConnection: Line | 39 | …
Issue with Azure Blob Storage Connectivity via P2S VPN
I am writing to request assistance regarding an issue we are currently facing while trying to connect our local systems to Azure Blob Storage through an Azure VPN connection. Plan and Current Configuration: We have set up an Azure VPN using OpenVPN to…
Azure route from Windows VM to ASAv VPN pool, behind firewall Inside interface
Hi, I have the following scenario where the Anyconnect VPN Client (172.16.100.100) can't ping or establish a communication with the Windows Server (10.0.0.5). Network Flow: Anyconnect VPN Client (172.16.100.100/24) Internet -> outside ASA vpn inside…
Issues with Service Bus Trigger and VNet-Integrated Azure Functions Not Recognizing Network Rules
I am experiencing a challenging issue with my Azure environment, specifically regarding the interaction between Azure Functions, Azure Service Bus (Standard), and network security rules. I have set up Azure Functions within an App Service Plan (B1),…
Cannot delete subnet GatewaySubnet due to unexpected server error
Dear Support, I have a GatewaySubnet subnet in my vnet which was being used by a VPN gateway. I already deleted the VPN gateway a few days ago but everytime I try to delete the subnet it takes 15 minutes and then comes back and says it failed due to an…
Networks in different subscriptions with error in gateway provisioning when trying to use s2s VPN - Azure
Good morning everyone! I hope you are all well. I have the same tenant, several subscriptions. In these subscriptions, there are several VNets (in different regions). I have a VNet Hub, in Subscription A, with peering to several other Vnets (including in…
How to identify Inbound and OutboundTransfer to calculate the VNet Peering cost
I want to calculate the VNet peering cost. How do I understand the Inbound and OutBound Transfer? From the history have found that 12,695 GB of data is processed and a cost of 888.65$ is incurred. How to gauge the spike in cost when data will increase?
Default outbound access for VMs in Azure will be retired—transition existing VMs to a new method of internet access
The VMs (with no public IPs) attached to our subnet have a default route to Azure firewall for outbound connectivity. Will I be affected?
IP address assignment needs to change from Dynamic to static
Need to change the IP address assignment from Dynamic to static, but the option disabled because it is associated with virtual network gateway. In the virtual network gateway i can't see any option to dissociate that IP address and associate another one.…
How to Connect to my Azure VPN to my GLiNet Router
I've searched Google so many times to find a solution but I'm highly confused. So I want to connect my VPN from Azure to my GLiNet router so I'm browsing from the VPN and not my wifi. I've created a VPN following step by step guides I found but not sure…
Keyvault Failover across regions with private endpoint
Hello, I've read this doc https://learn.microsoft.com/en-us/azure/key-vault/general/disaster-recovery-guidance#failover-across-regions and with reference to the bullet point in that doc, quote "If you're using private link to connect to your key…

Can't delete virtual network or subnet due to Service Association Link (SAL)
Seeing multiple issues with this from others posting. I need help getting a VNET deleted with a subnet that has Subnet Delegation for Microsoft.DBforMySQL/flexibleServers. The corresponding resources have already been deleted, and I tried to recreate but…

Network Manager IPAM - "failed to fetch usage data" error and cannot remove
I have a Network Manager in my subscription, that is showing a 'failed to fetch usage data' error in the Azure portal. Have had this error before on support case 2502060xxxxxxx and it was fixed at the backend after a time. What happens is, get this error…