get list of available ip addresses in subnet

问题

How can i get the list of available ip address in a subnet? I was able to get the list of all ip addresses but not able to check if the ip address is already utilized. for some reason the below command doesn't work. Test-AzureRmPrivateIPAddressAvailability

Thanks in adavance.

回答1:

I have the following example and it is working as expected. I am using ` backtick character to separate my commands into multiple lines.

$vNetName = "myvirtualnetworkname"
$resourceGroupName = "myresourcegroup"
Get-AzureRmVirtualNetwork `
-Name $vNetName `
-ResourceGroupName $resourceGroupName `
| Test-AzureRmPrivateIPAddressAvailability -IPAddress "10.0.0.10"

I am piping into Test-AzureRMPrivateIPAddressAvailability command so it didn't provide resource group or vnetname in that command. If you use that command by its own then you will have to provide resource group name and vnet name.

回答2:

For some reason the below command doesn't work. Test-AzureRmPrivateIPAddressAvailability

We can use Test-AzureRmPrivateIPAddressAvailability like this:

PS C:\> Get-AzureRmVirtualNetwork -Name $vnetName -ResourceGroupName $rgname | Test-AzureRmPrivateIPAddressAvailability -IPAddress "10.0.1.10"

Also we can use PowerShell to list available ip address in a subnet, here is my script:

PS C:\> $vnet = Get-AzureRmVirtualNetwork -Name "vnet" -ResourceGroupName "jason"
PS C:\> $networkID = "10.0.0."
PS C:\> For ($i=1; $i -lt 255; $i++)
>> {
>>     $IP = $networkID + $i
>>     $Address = Test-AzureRmPrivateIPAddressAvailability -VirtualNetwork $vnet -IPAddress $IP
>>     If ($Address.Available –eq $False) { Write-Host "$IP is not available" -ForegroundColor Red }
>>     else { Write-Host "$IP is available" -ForegroundColor Green}
>> }
10.0.0.1 is not available
10.0.0.2 is not available
10.0.0.3 is not available
10.0.0.4 is not available
10.0.0.5 is available
10.0.0.6 is available
10.0.0.7 is available
10.0.0.8 is available
10.0.0.9 is available
10.0.0.10 is available

来源：https://stackoverflow.com/questions/41774085/get-list-of-available-ip-addresses-in-subnet

标签

azure

azure-powershell