Networking

The Networking forum covers all aspects of Networking in Azure, including endpoints, load-balancing, network security, DNS, Traffic Manager, virtual networks, and external connectivity.

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  • If you have any feedback on any aspect of Azure relating to Networking, we’d love to hear it.

    How can we improve Azure Networking?

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    1. change virtual machine virtual network through portal

      Today, I needed to change a virtual network to a existing Virtual Machine. I had to delete this VM, create a new one using attached disks from the old one and set the Virtual Network. It would be nice if we had another way to do that, using Portal for example.

      621 votes
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        16 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
      • Allow DNS servers to be advertised per subnet instead of VNET

        Instead of advertising the DNS servers per VNET, is there anyway we can specify what DNS servers should be advertised per subnet? In most cases, I would create a VNET and use NSGs to segregate out my traffic.

        The problem with specifying the DNS servers for the whole VNET, is now I am required to create a completely separate VNET for a DMZ, as my internal DNS servers are being advertised to those machines. In this case, being able to specify DNS servers at a subnet level will allow more flexibility in regards to creating one VNET instead of multiple…

        391 votes
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          16 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
        • Want that VNet Peering can be created in another Directory

          Currently, VNet Peering between the different subscription there is a description that can be created. However, I checked , there was a need to be a separate subscription in the same directory.

          The scene in which Vnet Peering is utilized, the situation is considered overwhelming majority (such as the merger of the company, and integration of the system, etc for connection between VNet and VNet).

          254 votes
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            planned  ·  14 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
          • Offer NAT as a Service

            There is often the need to connect two or more networks with overlapping addresses over a VPN in regulated industries. The address spaces (often 10.0.0.0/8) can't be changed, however a DMZ subnet can be introduced in each network from the 172.16.0.0/12 address space. The DMZ subnets will not overlap between any network.

            Just like the load balancer, make a NAT device a first class function citizen in virtual networking and allow us to define SNAT, DNAT or Full NAT. Feel free to require a dedicated subnet for the device.

            Then make it easier for custom route rules to route traffic…

            142 votes
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              planned  ·  8 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
            • VNet Peering Limit - INCREASE

              With new concepts like Global VNet Peerings, Virtual Datacenter and Hub-Spoke Topology - VNEt peerings become more and more important.
              Please INCREASE the number of 50x allowed Peerings / Subscription/Vnet

              Many thanks in advance, you are doing a great JOB - keep it UP!
              Catalin

              136 votes
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                1 comment  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
              • Allow transit routing between ExpressRoute, VPN Gateways, and NVAs by allowing them to peer with BGP and exchange routes.

                Allow transit routing between ExpressRoute Gateways, VPN Gateways, and NVAs by allowing them to peer with BGP and exchange routes. This functionality would give the customer more flexibility in how they lay out their network.

                134 votes
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                  9 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                • Allow Network Security Groups (NSGs) to Reference Application Security Groups (ASGs) From Different Location

                  Remove the limitation of restricting Network Security Groups (NSGs) ability to leverage/associate Application Security Groups (ASGs) that are not within the same location of the target Virtual Network (VNET).

                  This is especially important, to provide granularity and segregation/isolation in a hub-and-spoke networking model (i.e. VNetA-ASG1-to-VNetB-ASG1), in association with VNet Peering.

                  120 votes
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                    5 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                  • Support VNET re-deployment without destroying subnets

                    When you deploy a VNET from an ARM template in incremental mode I would expect omitting the subnet property would not change the subnets since they are child resources. Instead they are destroyed. I think this is inconsistent with all other similar resource types e.g. app service plans and web apps, azure SQL servers and databases, etc... Please make VNETs and subnets deployments consistent.

                    https://github.com/Azure/azure-quickstart-templates/issues/2786

                    113 votes
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                      under review  ·  3 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                    • Bring Your Own Public IP Address space and Internet subnet routing in Azure Virtual Networks

                      When you own a public address space IPv4 and/or IPv6, Windows Azure should provide a way to use it (via LISP and/or classic routing).
                      When you don't own a public address space, you should be able to rent it for your virtual network on Windows Azure both via Microsoft or via Tunnel Broker providers

                      100 votes
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                        5 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →

                        Reactivating this request…apologies that it was closed due to misunderstanding of your intent.

                        We’ll take this request as: I need a simple way to host IP space that I own as Public IP’s in Azure which I can then use on my Azure-hosted services/VM’s.

                        We’ve had multiple requests for this feature recently and are actively working through the design now. Unfortunately, we don’t have an estimated release date yet.

                      • Allow the use of a known outbound nat gateway for vnets

                        VMs placed in a vnet today with a public ip attached, access the Internet from arbitrary, unknown addresses. This makes it hard to manage access from Azure VMs to backend systems relying on IP-address ACLs. We simply need to know which ip address azure vms use for accessing resources outside the vnet. If I use UDR's with dest 0.0.0.0/0, load balancing in Azure doesnt work. Please give us a configurable NAT gatway per subnet or vnet similar to what aws has.

                        84 votes
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                          5 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                        • Multiple Network Security Groups per subnet

                          Provide ability to associate multiple Network Security Groups with a single subnet. Right now there is limitation to associate only one NSG per subnet.

                          This limits reusability of NSGs which are created at subscription level. We have come across use-cases where multiple subnets have common rules and few subnet-specific rules.

                          It will be help a lot in terms of rules management and reusability if it is possible to segregate common rules across subnets in an NSG which can them be applied on a subnet with additional NSGs for subnet specific rules.

                          83 votes
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                            0 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                          • update DNS settings for VNET without restart of the VMs to take effect

                            Current when we try to update the DNS settings in the VNET or NIC, it required the VMs to be restarted to take effect. But when there are a large amount of VMs under the VNET, it would be a hard work to do so.
                            If this process could be simplify so that the restarted of VM will be no longer required, it would be a good news.

                            58 votes
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                              5 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                            • Azure Internal Endpoints to Vnet

                              Please provide Azure Services with an Internal Endpoint (a least Azure Storage and Azure Backup) to build up machines without Internet Connection.

                              43 votes
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                                3 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                              • Want that VNet Peering can be created another Region in same Gio

                                Currently, although it is possible to create a Peering between VNet within the same region, the same thing can be carried out also in the address space and subnets in VNet.

                                When VNet Peering can be created another Region in Same Gio that becomes available, I believe that the network design and expansion becomes easy.

                                I kindly ask for your consideration.

                                40 votes
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                                  5 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                                • Allow a VM's NIC to use a VNET\Subnet from another Subscription

                                  Given that the syntax of json deployment templates allows referencing resources by a unique resourceid which includes the guid of the subscription, I would like to create a VM in subscription 'A', whose NIC references a subnet that is part of a VNET in subscription 'B'.

                                  The reason for this is two-fold:
                                  1) This would allow a corporate networking function to securely manage all the networking infrastructure in a corporate IT-owned and managed subscription, but allow it to be consumed by line-of-business units, whose subscriptions are restricted (via ARM policies) to not allow the creation of VNETs.
                                  2) This would…

                                  39 votes
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                                    planned  ·  1 comment  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Allow to change subnets modification with enabled vnet peering

                                    Currentl once vnet is deployed and peering is created with another subscription or vnet. Once the peering is set, it is not possible to extend,remove or add another subnets ranges to all vnets which have valid peering configured. For such if you need to modify the subnet, you have to remove the peering (might cause downtime if peering is used), do the subnet modification and recreate the peering again.

                                    36 votes
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                                      under review  ·  2 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Add a system route for KMS

                                      Could you please add a system route to the KMS server. (kms.core.windows.net / 23.102.135.246)
                                      When using forced-tunneling, we must set an UDR to the KMS manually.

                                      33 votes
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                                        1 comment  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                                      • subnet expansion

                                        It would be nice if you could expand a subnet without having to remove all of the cloud services and VMs from the subnet. In our case we will have to destroy all of our subnets to expand one subnet. This is very inconvenient (yes we opened a support ticket).

                                        Additionally, make the tool available that the internal Microsoft support people use that creates a nice table of the various components of the subscription (I don't need to know datacenter, node, cluster). I've only seen snippets of the tables, but they are better than what I am getting from either…

                                        33 votes
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                                          1 comment  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Ability to move a NIC from one VNET to another.

                                          Could we get the ability to detach a NIC from it's current VNET and reattach it to a different VNET? In my case, I accidentally created a new VNET instead of attaching it to a pre-existing one, and it would be more convenient to move it over instead of recreating the NIC.

                                          33 votes
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                                            1 comment  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                                          • Allow transitive network flow between peered VNET's

                                            if we assume Three networks.

                                            VNET1 <> VNET2 <>VNET3

                                            <> denotes vnet peering

                                            A machine on VNET1 cannot directly see a machine in VNET3

                                            We would like this facility to enable us to build a network design without having to use vitual network appliances to make this happen.

                                            28 votes
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                                              3 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
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