Networking

How can we improve the networking platform and management in Windows Server?

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  1. Windows Firewall does not always display the correct default Main Mode IPsec policy

    Bug:

    The Windows Firewall snap-in does not always show the default Main Mode IPsec policy, it shows whatever MM policy was last created or assigned.

    Expected Behavior:

    Even if there are multiple Main Mode policies (called Main Mode Crypto Sets internally), the policy with the name of '{E5A5D32A-4BCE-4e4d-B07F-4AB1BA7E5FE1}' should always be displayed as the default in the GUI because it is the default used by Windows for IPsec.

    Steps to Reproduce:

    *In the Windows Firewall snap-in you can see the current default IPsec Main Mode proposal set by going to Properties of the Windows Firewall > IPsec Settings tab >…

    6 votes
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      2 comments  ·  Firewall  ·  Flag idea as inappropriate…  ·  Admin →
    • Cannot create IKEv2 tunnel mode IPsec rules in PowerShell, but IKEv1 works just fine

      Bug:

      When creating an IPsec rule which uses the IKEv2 keying module in PowerShell, an error is thrown, but it is not likely a PowerShell error, but an underlying bug in Windows.

      Expected Behavior:

      We should be able to manage IKEv2 IPsec rules however we wish, including creating tunnel mode IKEv2 rules without using RRAS.

      Steps To Reproduce:

      In PowerShell, the following code should work (notice the KeyModule):

      -------start---------
      $P1MachineCertOnly = New-NetIPsecPhase1AuthSet -Default <rest of command not shown>

      $IPsec3Tunnel = @{
      IPsecRuleName = 'IPsec3'
      DisplayName = 'IPsec3'
      KeyModule = 'IKEv2'
      Mode = 'Tunnel'
      LocalAddress = '192.168.1.0/24'
      LocalTunnelEndpoint = '192.168.1.204'
      RemoteAddress…

      4 votes
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        0 comments  ·  Firewall  ·  Flag idea as inappropriate…  ·  Admin →
      • Fix -WhatIf, -Verbose, and -ErrorAction support in the DnsServer PowerShell module

        The new cmdlets for DNS policies in particular have inconsistent and downright broken support for -WhatIf and -Verbose.

        Example:

        Add-DnsServerClientSubnet -cn MyDC -Name 'Whatever' -IPv4Subnet 10.0.0.0/32

        That works if you explicitly add -WhatIf. But if I make the call inside an advanced function that SupportsShouldProcess and call the outer function with -WhatIf, the preference will NOT carry over. In order to do that, I have to use -WhatIf:$WhatIfPreference.

        The same is true with -Verbose, having to use -Verbose:$VerbosePreference because it won't inherit it.

        This is true on the cmdlets for:
        - Client Subnets
        - Zone Scopes
        - Query Reoslution Policies

        4 votes
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          2 comments  ·  DNS  ·  Flag idea as inappropriate…  ·  Admin →
        • Routing and RRAS

          Routing and RRAS is Broken on Windows Server 2016.
          I can''t dail up via pppoe.
          It would be great, if this could be fixed.

          1 vote
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            0 comments  ·  Misc  ·  Flag idea as inappropriate…  ·  Admin →
          • DnsServerResourceRecord does not support multi-string records

            RFC-4408 (section 3.1.3) https://tools.ietf.org/html/rfc4408#section-3.1.3 defines the use of multi-string records for SPF (DNS TXT records), however the Get- or Add- DNSServerResourceRecord commands do not support this. For the Get- the actual DNS record is truncated to 256 chars, and for the Add- it simply errors out with an invalid propery.

            Example of a valid DNS record (that can be configured by the DNS GUI)
            $RecordName = "spfrecord"
            $RecordText = "v=spf1 ip4:192.168.0.1 ip4:192.168.0.2 ip4:192.168.0.3 ip4:192.168.0.4 ip4:192.168.0.5 ip4:192.168.0.6 ip4:192.168.0.7 ip4:192.168.0.8 ip4:192.168.0.9 ip4:192.168.0.10 ip4:192.168.0.11 ip4:192.168.0.12 ip4:192.168.0.13 ip4:192.168.0.14 include:spf.protection.outlook.com mx -all"
            $Zone = "contoso.com"
            $Type = "TXT"
            $DNSServer = "DC1.contoso.com"
            Add-DnsServerResourceRecord -DescriptiveText $RecordText -Name…

            1 vote
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              0 comments  ·  Managment tools  ·  Flag idea as inappropriate…  ·  Admin →
            • DHCP Failover ist not possible between different Languages.

              Dear Microsoft,

              it's not possible to Setup a DHCP Failover between two Server (w2k12 R2) with different languages in my case English and german.

              The Error Code 20044 comes up because of the differenet naming of the user and/or vendor classes.

              I think this should be fixed.

              Kind regards,
              Benedikt Ochs

              1 vote
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                0 comments  ·  DHCP  ·  Flag idea as inappropriate…  ·  Admin →
              • DNS recursion using wrong NS for delegated zone CNAME

                When Server 2016 DNS Server has a delgation within a primary zone, CNAME records in that delegation result in queries to the delgation's name servers, not forwarders / root hints.
                For example:

                Primary zone: one.example
                Delegation: foo.one.example, with nameserver ns.bar.com

                In that delegated zone, there exists a record:

                baz.foo.one.example IN CNAME other.two.example

                two.example's zone, hosted by ns.somethingelse.com, has a record:
                other.two.example IN A 1.2.3.4

                From a client pointed at the DNS server, query baz.foo.one.example.

                I would expect the server to query ns.bar.com for baz, receive a reply of other.two.example, and then query either two.example's nameserver, or use the default forwarders…

                4 votes
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                  0 comments  ·  Bug  ·  Flag idea as inappropriate…  ·  Admin →
                • get-netipconfiguration

                  Get-netipconfiguration throws exception if you have multiple default gateways configured for an interface.

                  PS C:\Users\Administrator> Get-NetIPConfiguration

                  Exception setting "NetProfile": "Cannot convert the "System.Object[]" value of type "System.Object[]" to type
                  "Microsoft.Management.Infrastructure.CimInstance"."
                  At C:\Windows\system32\WindowsPowerShell\v1.0\Modules\NetTCPIP\NetIPConfiguration.psm1:201 char:17
                  + ... $IPConfig.NetProfile = Get-NetConnectionProfile -Interfac ...
                  + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                  + CategoryInfo : NotSpecified: (:) [], SetValueInvocationException
                  + FullyQualifiedErrorId : ExceptionWhenSetting

                  InterfaceAlias : Ethernet0
                  InterfaceIndex : 4
                  InterfaceDescription : Intel(R) 82574L Gigabit Network Connection
                  IPv4Address : 172.16.110.222
                  IPv6DefaultGateway :
                  IPv4DefaultGateway : {12.12.12.12, 172.16.110.2}
                  DNSServer : 172.16.110.100

                  1 vote
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                    1 comment  ·  TCP/IP  ·  Flag idea as inappropriate…  ·  Admin →
                  • DNS: Application high availability

                    Hello,

                    On your site "What's new in DNS Server in Windows Server 2016" is written that there will be a new feature called "DNS Policies", which can be used for "Application high availability". But i can't find this feature, which allows me to redirect clients to the healthiest endpoint like a failover-cluster. I'm not looking for a loadbalancer.

                    Other People are looking too for this Feature and some documentation, when will it be available?

                    This feature would be great for applications like ADFS and so on.

                    "What's New" https://technet.microsoft.com/en-us/windows-server-docs/networking/dns/what-s-new-in-dns-server
                    Other person: https://social.technet.microsoft.com/Forums/office/en-US/84d3b0de-e427-4987-b498-6b053851e2dc/dns-policies-application-high-availability?forum=WinServerPreview

                    4 votes
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                      2 comments  ·  DNS  ·  Flag idea as inappropriate…  ·  Admin →
                    • Broke RRAS

                      At the moment PPPoE is broken in Windows Server 2016 over RRAS.
                      It would be great if this could be solved.
                      Till yet we're using Windows Server 2012. But we would like to upgrade but can't 'cause RRAS is broken.

                      2 votes
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                        3 comments  ·  Misc  ·  Flag idea as inappropriate…  ·  Admin →
                      • Enable-NetLldpAgent not useful

                        The Enable-NetLldpAgent , in order to be useful in proper management of a network, should allow setting TLV subtypes.
                        Or...........Some options I would prefer:
                        set TLV 1 to ID subtype 5 (network address) instead of subtype 4 (MAC address)
                        set TLV 2 to ID subtype 5 (interface name) instead of 3 (MAC address)

                        include the optional TLV 5 system name

                        MAC address is easily obtained by other networking tools. Using this as the information for mandatory TLVs is redundant and useless.

                        2 votes
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                          1 comment  ·  Managment tools  ·  Flag idea as inappropriate…  ·  Admin →
                        • Make Direct Access to work also User based

                          "Direct Access" which unfortunately only works for domain joined clients (I dont get it why u made this fantastic technology computer based and not also user based which would also work for non domain joined computers)

                          Giving customers access to our fileshares via https would be easy then.
                          Currently almost all products from Microsoft are ready to deploy to external users via https the only thing left is classic filesharing.

                          I know u want customers to use ur cloud services, but there are also a lot of companys which could not use them for compliance reasons, so please dont forget…

                          1 vote
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                            0 comments  ·  DirectAccess  ·  Flag idea as inappropriate…  ·  Admin →
                          • Fix Remote-NetIPAddress to work inside try/catch

                            Writing a script to provision a machine - we first remove the IPAddress (and any default gateway), But sometimes there is no address. That;s fine - we just try/catch and move on, liike this:

                            Try {
                            Remove-NetIPAddress -InterfaceIndex $IfIndex `
                            -AddressFamily IPv4 `
                            -Confirm $false
                            }
                            Catch {Write-Verbose 'No IPAddresses found'}

                            But instead of the nice write-verbose message, we get a fatal error:
                            Remove-NetIPAddress : No matching MSFT_NetIPAddress objects found by CIM query for instances of the ROOT/StandardCimv2/MSFT_NetIPAddress class on the CIM server:
                            SELECT * FROM MSFT_NetIPAddress WHERE ((IPAddress LIKE 'False')) AND ((InterfaceIndex = 3)) AND ((AddressFamily = 2)). Verify…

                            1 vote
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                              1 comment  ·  Bug  ·  Flag idea as inappropriate…  ·  Admin →
                            • Provide useful parameters for Enable-NetLldpAgent

                              Enable-NetLldpAgent not useful

                              The Enable-NetLldpAgent , in order to be useful in proper management of a network, should allow setting TLV subtypes.
                              Or...........Some options I would prefer:
                              set TLV 1 to ID subtype 5 (network address) instead of subtype 4 (MAC address)
                              set TLV 2 to ID subtype 5 (interface name) instead of 3 (MAC address)

                              include the optional TLV 5 system name

                              MAC address is easily obtained by other networking tools. Using this as the information for mandatory TLVs is redundant and useless.

                              And include lldp driver and PS modules in every version of Windows. You can't build a…

                              1 vote
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                                1 comment  ·  Layer 2 & Ethernet  ·  Flag idea as inappropriate…  ·  Admin →
                              • Expose whether DNS Client Server Address assigned by DHCP or Static

                                The Get-DNSClientServerAddress cmdlet does not provide information on whether or not the Server Addresses were assigned via DHCP or have been statically assigned.

                                This is presumably because the information is not provided to WMI/CIM.

                                This information is available by using NETSH, so it is available in the OS.

                                This would allow some problems in the xDNSServerAddress resource in the xNetworking DSC resource module (in the Resource Kit) to be solved.

                                For more information about the problem and why it is causing problems, please see this issue in the xNetworking resource module: https://github.com/PowerShell/xNetworking/issues/164

                                7 votes
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                                  1 comment  ·  Managment tools  ·  Flag idea as inappropriate…  ·  Admin →
                                • Move the GlobalBlocklist to the ADS

                                  Everytime you set up a new DC with DNS (integrated DNS Zones) you have to remember to clear the GlobalBlocklist in the Registry (when using wpad and isatap). If you set up new DC everytime a new OS is live, you have to remember for this every ~ 3 years. Please move the GlobalBlocklist to a Paramter in the integrated zones, so that every DNS Server with this zone get a real "Global" Blocklist. Or, at least, make the Blocklist visible in the mmc. Would make the search for the misconfiguration a lot faster.

                                  1 vote
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                                    0 comments  ·  DNS  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Roll back network changes if not confirmed

                                    If you change network settings, you should be prompted to confirm once the change has finished in the same way as display settings. If not the change is rolled back.

                                    4 votes
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                                      1 comment  ·  Managment tools  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Server 2016 wifi does not work

                                      In Windows Server 2016 RTM, like in the TP5, still Wifi does not work!
                                      I can enable the service, device is known in device manager and it also finds Wifi networks, but when i connect, after entering password, Explorer.exe crashes!

                                      5 votes
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                                        0 comments  ·  Bug  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Remove-DhcpServerv4Reservation [IP Address] removes all reservations in the scope, even if the IP is not a scope IP

                                        When using Remove-DhcpServerv4Reservation and just giving it an IP address without using the option -IPAddress, the cmdlet removes *all* reservations and turns them into leases.

                                        This should not happen if the IP address is not a scope IP identifier and should throw an error rather than removing all reservations.

                                        3 votes
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                                          0 comments  ·  Managment tools  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Can you add analogue fail2ban (in linux) to windows server firewall?

                                          It't ve cool has an tools in OS firewall, that can ban bruteforce RDP or other port.

                                          3 votes
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                                            0 comments  ·  Firewall  ·  Flag idea as inappropriate…  ·  Admin →
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