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. Route Tables attached to NIC

      I love using Route tables attached to the Subnet under the Virtual Network, could we have Route table attached to NIC as well ?

      1 vote
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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.

        12 votes
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          1 comment  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
        • Dynamic routing within VNET

          I would like to have the option to dynamically route traffic within a subnet in Azure.
          Example: I have a two VMs acting as tunnel endpoints for 4G<->Network devices. These VMs are connecting to the same endpoints over Internet but use different technologies and have different connection availability. One is fast but unreliable, the other one slow but reliable. This setup is exported from my on premise VMware setup. But for this to work I have to be able to dynamically choose which VM I want to route traffic to, be it using Cisco route tracking or OSPF.

          I've set…

          3 votes
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            0 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
          • Exclude networks in the default Tag "Virtual Network" which are defined in UDR

            When we are using the default Tag "Virtual Network" in NSG to make a Rule for intra VNE communication, the UDR networks are automatically included in the default Tag "Virtual Network", e.g. I have defined a UDR as route route / network 0.0.0.0/0, it is included in to default Tag "Virtual Network", then the Tag is useless for intra vnet communication as it contain the network 0.0.0.0/0.

            My Suggestion is to exclude the UDR from default Tag or allow us to make our own Tag. Also when we are creating NSG with multiple destination ip/networks from same source ip/network and…

            1 vote
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              0 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
            • time protocol

              Network Time - Precision Time Protocol (IEEE 1588 std) support

              Azure should provide a know reference service for a network time protocol such as NTP or preferably for the IEEE 1588 standard Precision Time Protocol, or provide this as an option with the Blockchain service.

              10 votes
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                under review  ·  0 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…

                16 votes
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                  under review  ·  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.

                  7 votes
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                    under review  ·  0 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

                    62 votes
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                      under review  ·  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.

                      56 votes
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                        4 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                      • VM MAC address spoofing

                        I wanted to run multiple LXC/LXD containers on a single Linux VM and make them exposed to VNET via a bridged interface to provide services in the private network. That's not possible without VM/VNIC ability of MAC address spoofing. Please support it.

                        8 votes
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                          under review  ·  0 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                        • Allow Agent IP in UDR when using Forced Tunnel

                          You can not add a UDR for the VM Agent IP when employing Forced Tunneling. This makes deployments fail (e.g. VMSS).

                          Please allow UDR to the special VM Agent IP of 168.63.129.16

                          Full error message:
                          Failed to add route 'DirectRouteToVMAgent' to route table 'VmAgentIp'.

                          Error: AddressPrefix 168.63.129.16/32 for route DirectRouteToVMAgent is not allowed because its in restricted address space.

                          41 votes
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                            under review  ·  3 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                          • Specify internal IP address during creating VM on Azure Portal

                            We cannot specify internal IP address during creating VM on Azure Portal, so it's required to specify IP address after VM creation. We want to specify internal IP address during creating VM on Azure Portal.

                            10 votes
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                              0 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                            • 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.

                              24 votes
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                                under review  ·  4 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                              • Allow a UDR to specify any routable "next hop" IP address (not limited to the VNet or Region)

                                It would be great if a UDR could point to an IP in another region or on-premises via ExpressRoute. The problem today is that If someone invests in a NGFW virtual appliance, it can only be used from the VNet where it exists or others that are peered to it within the same region. A UDR should be able to route to any routable address... why not?

                                4 votes
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                                  1 comment  ·  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).

                                  70 votes
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                                    7 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.

                                    34 votes
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                                      planned  ·  4 comments  ·  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.

                                      11 votes
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                                        under review  ·  0 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…

                                        40 votes
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                                          4 comments  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Decouple vNIC count from VM Size

                                          For people wanting to use Virtual Firewall Appliances, the amount of vNICs a Virtual Server type offers is the key consideration for how many backend subnets one can place behind the firewall.
                                          The existing Azure practice of scaling of a VM type/size to get additional vNICs is therefore problematic for the following reasons.

                                          1. We have to oversize our VM to get the amount of vNICs required. We pay for more CPU and RAM resources than we actually require.

                                          2. Firewall vendors often license the appliances based on CPU Count. Because we had to oversize our VM, we now have…

                                          19 votes
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                                            1 comment  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
                                          • Automatically add Web hosting plan services to virtual network

                                            I pretty much want to keep storage, SQL database, web app, VMs, and any other service I use within a private network to keep granular control of which services can connect to other services. The "open to all" connection strings to all services is a hard sell to any organization used to securing their IT behind firewalls and networks of networks. Where are you on this today? It must be considered a less secure since these connection strings always tend to leak..

                                            8 votes
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                                              1 comment  ·  Virtual Networks (VNET)  ·  Flag idea as inappropriate…  ·  Admin →
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