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IP machine discovery

Not the best title but I'm not sure how to explain what I'm looking for in the title.

My firm is merging with another company and they asked us to change our IP range so that we can setup a VPN connection with theirs. Everything has gone smoothly for the most part but after we've thought we were done with did a IP scan of the 192.168.1x range and it seems that there are still 2 devices using IP's.

They must have been manually setup at some point and we cannot figure out what machines they might be.

Is there any way to help determine what these IP's are referring to?
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dak11
Asked:
dak11
1 Solution
 
Dan CraciunIT ConsultantCommented:
Try nmap: http://nmap.org/

It should tell you what those machines are and what OS they're using.

HTH,
Dan
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pony10usCommented:
To get the name of the device you can use:

NBTSTAT -A <ip address>
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ibrahim52Team LeaderCommented:
Have you tried a simple network scanning tool like http://www.advanced-ip-scanner.com/
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dmwynneCommented:
Try nbtstat -A ipaddress

If you know which switch they are connected  to you could try and look at the mac address table of the switch which may point you to which port had the a device using that ip.
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Thomas Zucker-ScharffSystems AnalystCommented:
If none of that works you could try MyLanViewer.
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Craig BeckCommented:
Maybe your switches can show you the ARP table.  This will let you find the MAC address of the machines and you can then locate the port they're connected to.
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dak11Author Commented:
IP Scanner worked as it gave me the manufacturer of the machine (non-PC) which I was able to track down.
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