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I have a VM with 3 NICs that was deployed from the Marketplace. I need to change the subnets and IP addresses that are currently assigned to NICs 2 & 3 I have tried using PowerShell scripts but receive this error: Set-AzureRmNetworkInterface : Cannot change subnet of network interface /subscriptions/xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx 4999/resourceGroups/vcfrg/providers/Microsoft.Network/networkInterfaces/vm200-eth1 while it is in use as a secondary network interface.

Thanks, Scott

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  • What happens if you try and do it through the portal? You should be able to go to the NIC object, then IP Address, and then set the subnet
    – Sam Cogan
    Jan 6, 2017 at 22:12

1 Answer 1

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I had create a VM with two NICs, NIC01(10.0.1.0/24) and NIC02(10.0.2.0/24), then I use powershell to set the azure network interface, here is my script, after the script complete, the NIC01 change to 10.0.3.0/24. It works for me.

$NICname = nic01
$RGname = jason
$NIC = Get-AzureRmNetworkInterface -Name $NICname -ResourceGroupName $RGname
$NIC.IpConfigurations[0].PrivateIpAddress 
$VNET = Get-AzureRmVirtualNetwork -Name $VNETname  -ResourceGroupName $RGname
$Subnet2 = Get-AzureRmVirtualNetworkSubnetConfig -VirtualNetwork $VNET -Name subnet03
$NIC.IpConfigurations[0].Subnet.Id = $Subnet2.Id
Set-AzureRmNetworkInterface -NetworkInterface $NIC

enter image description here

And here is the result: enter image description here

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  • @Scott Here a good article about how to change Subnet and Virtual Network for Azure Virtual Machines (ASM & ARM), refer to the link:blogs.msdn.microsoft.com/igorpag/2016/03/13/…
    – Jason Ye
    Jan 10, 2017 at 6:32
  • @Scott Just checking in to see if the information provided was helpful. Please let me know if you would like further assistance.
    – Jason Ye
    Jan 13, 2017 at 12:10

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