Question

我试图编写一个可以找到（后来添加预留）DHCP设备的脚本。问题是我有一个范围，在此范围内我们手动划分为不同的IP范围，其中应添加某些类型的设备。

E.g。范围10.92.0.0/24，我们将范围指定为

10.92.0.10-20适用于iPhone等 10.92.0.10.50为Android手机等。

我已经明白了脚本可以通过我提供给它的IP范围，以及GET DHCP保留或显示错误。我一直在想第一个错误可以作为免费IP。

任何想法？：）

    # Get DHCP Scope
$Start = 100
$End = 140
$DHCPServer = "dhcpserver.company.com"

# Find Free IP address
    #It can use to get DHCP reservation by IP and find the one which returns error - which can be used as the free one - loop done
    #Now how to tell it to stop when the error occures?
While ($Start -le $End) {
    $IP = "10.92.0.$Start"
    Write-Host "Reservation for: $IP" -ForegroundColor Cyan
    Get-DhcpServerv4Reservation -ComputerName $DHCPServer -IPAddress $IP
    $Start++
}

Answer 1

为什么不使用专用cmdlet Get-DhcpServerv4FreeIPAddress？

Get-DhcpServerv4FreeIPAddress -ScopeId "192.168.1.0" -StartAddress "192.168.1.100" -EndAddress "192.168.1.140" -ComputerName "dhcpserver.company.com"

Answer 2

您可以将Get-DhcpServerv4Reservation的输出分配给变量，然后对其执行操作：

While ($Start -le $End) {
    $IP = "10.92.0.$Start"
    $reservation = Get-DhcpServerv4Reservation -ComputerName $DHCPServer -IPAddress $IP -ErrorAction SilentlyContinue

    if($reservation){
        Write-Host "Reservation for: $IP" -ForegroundColor Cyan
        $reservation
    }
    else {
        Write-Host "No reservation found for: $IP" -ForegroundColor Red
        break #comment out to continue through all IPs in Scope
    }

    $Start++
}

Windows，DHCP服务器预留 - 查找免费IP地址

2 个答案: