Invoke-SubnetScan.ps1
|
function Invoke-SubnetScan { param ( [switch]$ResolveDNS, [Parameter(Mandatory=$True)] [ValidateNotNullOrEmpty()] [String]$Subnet, [Parameter(Mandatory=$True)] [ValidateNotNullOrEmpty()] [String]$FirstHost, [Parameter(Mandatory=$True)] [ValidateNotNullOrEmpty()] [String]$LastHost ) $Script:Hosts = Foreach ($i in $FirstHost..$LastHost){ $Subnet.trim(".") + "." + $i } if (!$ResolveDNS){ Invoke-FastPing -HostName $Script:Hosts | Where-Object {$Null -ne $_.RoundtripAverage} } if ($ResolveDNS){ Write-Host "DNS Server To Use?" $DNSServer = Read-Host $Scan = Invoke-FastPing -HostName $Script:Hosts | Where-Object {$Null -ne $_.RoundtripAverage} $Results = foreach ($i in $Scan){ [PSCustomObject]@{ ComputerName = (Resolve-DNSName $i.ComputerName -Server $DNSServer -ErrorAction SilentlyContinue).NameHost IPAddress = $i.ComputerName RoundTripAverage = $i.RoundtripAverage Online = $i.Online } } return $Results } } |