I've created an Azure DNS server with Address 192.168.0.4
I've created a Virtual Network with address space 192.168.. I changed the Subnet-1 to be 

 starting IP 192.168.10.0
 Address Count 64  
 Address Range 192.168.10.0 - 192.168.10.63

I've created 3 virtual machine images in a single cloud service using powershell.

$ADVM = New-AzureVMConfig -Name $ADVMName -InstanceSize Small -ImageName $ADVMImageName.ImageName |
            Add-AzureProvisioningConfig -Windows -Password $AdminPassword |
            Add-AzureDataDisk -CreateNew -DiskSizeInGB 10 -DiskLabel 'datadisk2' -LUN 0  |
            Add-AzureEndpoint -Protocol tcp -LocalPort 80 -PublicPort 80 -Name 'web' -LBSetName 'lbweb' -ProbePort 80 -ProbeProtocol http -ProbePath '/'

$SQLVM = New-AzureVMConfig -Name $SQLVMName -InstanceSize Medium -ImageName $SQLImageName.ImageName |
            Add-AzureProvisioningConfig -Windows -Password $AdminPassword |
            Add-AzureDataDisk -CreateNew -DiskSizeInGB 50 -DiskLabel 'datadisk2' -LUN 0 |
            Add-AzureEndpoint -Protocol tcp -LocalPort 80 -PublicPort 80 -Name 'web' -LBSetName 'lbweb' -ProbePort 80 -ProbeProtocol http -ProbePath '/'

$APPVM = New-AzureVMConfig -Name $APPVMName -InstanceSize Large -ImageName $AppImageName.ImageName |
            Add-AzureProvisioningConfig -Windows -Password $AdminPassword |
            Add-AzureDataDisk -CreateNew -DiskSizeInGB 50 -DiskLabel 'datadisk2' -LUN 0 |
            Add-AzureEndpoint -Protocol tcp -LocalPort 80 -PublicPort 80 -Name 'web' -LBSetName 'lbweb' -ProbePort 80 -ProbeProtocol http -ProbePath '/'

#CreateService                   
New-AzureVM -ServiceName $CloudServiceName -VMs $ADVM,$SQLVM,$APPVM -AffinityGroup $AffinityGroup -VNetName $VirtualNetworkName

All the VM's and cloud service get created as expected. (although the IP addresses of the new VM's are not sequential)

I get these 3 IP addresses

192.168.0.4 f

azure azure-virtual-machine azure-virtual-network
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