I was playing with Azure IAAS & than came the requirement to have multiple NICs on a machine and to my surprise

• There is no way to have multiple NICs after the machine has already been setup with a single NIC.
• Multiple NICs are not supported by all VM sizes. (refer below link to know about which size can support multiple NIC)

https://docs.microsoft.com/en-us/azure/virtual-machines/sizes

• GUI has no way to create multiple NIC, it needs to be done via Powershell, Template , CLI.

Microsoft should add these capabilities as there can be situations where you want to add multiple NICs & you started with single NIC VM. There should also be an option in GUI to do the same but till MS add these features lets enjoy powershell 🙂

First & foremost note down the VM size that you will be using & it should support multiple NICs.

Login to AZURE resource manage portal using Login-AzureRmAccount

Lets first select the image that we want to deploy &  filter it with powershell.

2016:

get-AzureRmVMImage -Location “Central US” -PublisherName “MicrosoftWindowsServer” -Offer “WindowsServer” -Skus “2016-Datacenter”

2012 R2:

get-AzureRmVMImage -Location “Central US” -PublisherName “MicrosoftWindowsServer” -Offer “WindowsServer” -Skus “2012-R2-Datacenter”

2012:

get-AzureRmVMImage -Location “Central US” -PublisherName “MicrosoftWindowsServer” -Offer “WindowsServer” -Skus “2012-Datacenter”

Following information is required:

$rsgname = “STP-LAB-RES-GRP”                    # resource group Name

$netrsgname = “STP-LAB-NET-RES-GRP”    #network resource name if its different

$stgrsgname = “STP-LAB-STG-ACC”               #Storage resource name if its different
$location = “Central US”                                      # Location Name
$stgaccname = “stplrsstg”                                    # storage account
$vnetname = “GlobalNetwork”                           # Vnet
$subnet1 = “STP-Net-Range1”                             #subnet1
$subnet2 = “STP-Net-Range2”                            #subnet2
$nsg = “STP-LAB-NSG-GEN”                              #network security group
$cred = Get-Credential                                           #administrator userid & password

$size = “Standard_A2_V2”                                   #VM Size

$vmname = “EXDAGN1”                                       #VM name

Now enter the following command to start the config process.

$vm = New-AzureRmVMConfig -VMName $vmname -VMSize $size

$vm = Set-AzureRmVMOperatingSystem -VM $vm -Windows -ComputerName $vmname -Credential $cred -ProvisionVMAgent -EnableAutoUpdate

ADD image that you want to deploy to the configuration.

$vm = Set-AzureRmVMSourceImage -VM $vm -PublisherName MicrosoftWindowsServer -Offer WindowsServer -Skus 2016-Datacenter -Version “latest”

Crete multiple NICs & piblic ip to be added tp configuation:

$vnet = Get-AzureRmVirtualNetwork -Name $vnetname -ResourceGroupName $netrsgname

$pubip = New-AzureRmPublicIpAddress -Name “ExPubIP” -ResourceGroupName $rsgname -Location $location -AllocationMethod Dynamic

$nic1 = New-AzureRmNetworkInterface -Name “EXDAGN1NIC1” -ResourceGroupName $rsgname -Location $location -SubnetId $vnet.Subnets[0].Id -PublicIpAddressId $pubip.Id

$nic2 = New-AzureRmNetworkInterface -Name “EXDAGN1NIC2” -ResourceGroupName $rsgname -Location $location -SubnetId $vnet.Subnets[2].Id

# $vnet.Subnets[0].Id/$vnet.Subnets[2].Id are the subnets that I want to be the NICs to be in.

$vm = Add-AzureRmVMNetworkInterface -VM $vm -Id $nic1.Id

$vm = Add-AzureRmVMNetworkInterface -VM $vm -Id $nic2.Id

Now make one interface as primary(this is mandatory)

$vm.NetworkProfile.NetworkInterfaces.Item(0).Primary = $true

Now we have VM details, Image, Network & now we need storage 🙂

$storageAcc = Get-AzureRMStorageAccount -Name $stgaccname -ResourceGroupName $stgrsgname

$osDiskUri = $storageAcc.PrimaryEndpoints.Blob.ToString() + “vhds/WindowsVM2016EXosDisk.vhd”

$vm = Set-AzureRmVMOSDisk -VM $vm -Name “WindowsVM2016EXosDisk” -VhdUri $osDiskUri -CreateOption fromImage

You can now see whats its in $vm variable just to check & Lets now create the VM using this configuration.

New-AzureRmVM -ResourceGroupName $rsgname  -Location $location -VM $vm

Now your VM is being Created & you can login to AZURE portal & verify the specs after process is completed.

Thanks for reading

Tech Wizard

https://techwizard.cloud

https://syscloudpro.com/