Ping to see if machine is on

[emozley]

Hi

I have a VB.NET program that audits the software on a PC and also detects it's operating system. I have found that if it tries to audit a PC that is switched off the program can get stuck so I have tried to ping a machine first and if it's unresponsive to move on to the next PC.

Generally speaking this works fine but we have a machine that is returning a ping but all is not "on":

H:\>ping lt104

Pinging lt104.bb01.com [10.5.7.116] with 32 bytes of data:

Reply from 154.32.149.205: Destination net unreachable.
Reply from 154.32.149.205: Destination net unreachable.
Reply from 154.32.149.205: Destination net unreachable.
Reply from 154.32.149.205: Destination net unreachable.

Ping statistics for 10.5.7.116:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

Is there a way of saying that if there is a ping response saying unreachable then this should count as a fail?

Thanks very much - or if there is a more reliable way of saying if a machine is off or on that would be handy.

Ed

 

[RandyRiegel]

Something like this should work.

If My.Computer.Network.Ping("10.5.7.116") Then
    Console.WriteLine("Machine On")
Else
    Console.WriteLine("Machine Off")
End If