Re: Find out if an IP address is in use on the LAN

No packets from Wireshark in 35 minutes - guess there's nothing out there
on that IP.

Thanks David and Buck.


On Thu, Aug 14, 2014 at 2:56 PM, Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx>
wrote:

Gonna let Wireshark run for about 30 minutes to see if anything shows up.

Thanks.


On Thu, Aug 14, 2014 at 1:52 PM, Buck Calabro <kc2hiz@xxxxxxxxx> wrote:

On 8/14/2014 12:51 PM, Jeff Crosby wrote:

I'm 99% sure the IP address 192.168.0.5 is not in use on our LAN, but I
want to be 100% sure.

I've pinged it and get no reply, but some things don't reply to a ping,

do

they? Or because I used an actual IP address in the ping, is that a
definitive answer that it's not in use because I got no reply?

No, it's not definitive. Some devices deliberately don't answer ping.
It could also be rebooting, sleeping, powered off or showing the Blue
Screen of Death.

Is there a way? I'm on Windows 7.

I'd use Wireshark. Run it for a while and capture anything coming/going
to that IP address.
--buck
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Jeff Crosby
VP Information Systems
UniPro FoodService/Dilgard
P.O. Box 13369
Ft. Wayne, IN 46868-3369
260-422-7531
www.dilgardfoods.com

The opinions expressed are my own and not necessarily the opinion of my
company. Unless I say so.