On Mon, Feb 3, 2014 at 8:56 AM, Florian Götz <f.goetz@hs-mannheim.de> wrote: > Anyone got a hint where to search for a solution to that? Not an expert, but, does the machine have more than one NIC? If so, have you tried ping -i? Or other services in the unpingable machines? What about the reverse way? HTH