WIN 2016 Multiple VLANs

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I have a two host clustered HyperV environment and Im trying to add a second, VLAN 12 for isolated traffic. The virtual switch is external with OS management and is not tagged. My production VM are untagged and traffic is flowing the new VM that will be isolated is tagged and traffic is not flowing. I was told that a hyperv switch can only be tagged with two VLANs, if so how would I add another VLAN since the GUI only allows one VLAN.

The physical switch is configured to all untagged traffic to assign VLAN 10 and tagged for VLAN 12.

How do I get this to work?

Hey @Dan-Wages,

The Hyper-V switch is not assigned a VLAN ID. It restricts traffic flow based on VLAN ID. The settings page for the virtual switch is assigning a VLAN ID to manamement traffic, not the switch. If you use the default value of 2, then all management traffic will be assigned a VLAN ID of 2. This will allow you to isolate management traffic from the virtual machines (assuming you haven't assigned any VMs to VLAN ID 2). You would configure the VLAN ID on the properties of the network adapter of the virtual machine. If you set the VLAN ID for the virtual machine to 12, then it will only be able to communicate with other VMs that have a network adapter assigned to the same VLAN ID . If there are no other VMs assigned to VLAN 12, then there is no where to send the traffic, as the VM is isolated from everyone.

Mike

Dan,
Mike is correct with the above info. I'm not sure who told you about the 2 VLAN limit. To my knowledge a Hyper-V guest can have up to 12 different VLANs assigned. You can assign via PowerShell. Take a look at the following example.
Set-NetAdapter -Name "Ethernet 1" -VlanID 10
Also, check out this link for additional ways to configure VNICs via PowerShell.
https://docs.microsoft.com/en-us/powershell/module/netadapter/set-netadapter?view=win10-ps
I hope that helps!
Kindly,
Cherokee

Thank you for the information! its greatly appreciated!