Ping Subnet in Powershell

Ping-Subnet.ps1

# Code was written by Google Search AI (probably Gemini)
function Ping-Subnet ($SubnetPrefix, $StartIP, $EndIP) {
    # Define the range of IP addresses to sweep
    $IPs = $StartIP..$EndIP | ForEach-Object { "$SubnetPrefix.$_" }

    # Perform the ping sweep in parallel
    $Results = $IPs | ForEach-Object -Parallel {
        $IP = $_
        try {
            $PingResult = Test-Connection -ComputerName $IP -Count 1 -Quiet -ErrorAction SilentlyContinue
            if ($PingResult) {
                [PSCustomObject]@{
                    IPAddress = $IP
                    Status = "Active"
                }
            } else {
                [PSCustomObject]@{
                    IPAddress = $IP
                    Status = "Inactive"
                }
            }
        } catch {
            [PSCustomObject]@{
                IPAddress = $IP
                Status = "Error"
                ErrorMessage = $_.Exception.Message
            }
        }
    } -ThrottleLimit 100 # Adjust ThrottleLimit based on your network and system resources

    # Output the results
    $Results | Format-Table -AutoSize
}

# Example usage: Ping the subnet 192.168.1.0/24 from .1 to .254
Ping-Subnet -SubnetPrefix "192.168.1" -StartIP 1 -EndIP 254