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Tracking Down Unknown IP Address

Discussion in 'Networking' started by nsandestin, Jun 28, 2006.

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  1. nsandestin

    nsandestin Thread Starter

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    Hi,

    Is there anyway to track down who/what/where an IP Address is connected to by only having the IP address. I know that it can't me physically where but something to tell me what type of device is using it would be very helpful. I just started working for a company and there are a few static IP addresses that no one knows what/who/where they belong to. I tried using LANSurveyor but it wouldn't return any data on the end systems. Besides unplugging them from the switch and waiting for something to crash/someone to scream, does anyone have anyother suggestions on how to track this down?

    Also, I used a tracert command and that didn't return anything either...

    Thanks for the help!

    Noah
     
  2. StumpedTechy

    StumpedTechy

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    Try the nbtstat command?
    Run SNMP trap on the IP to see if it gives you any information on the device connected?
    Try connecting to the IP with a web browser and see if it has any web interface?
     
  3. nsandestin

    nsandestin Thread Starter

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    No luck....

    :(
     
  4. mf-tech

    mf-tech

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    If you use StumpedTechy's suggestion, using nbtstat -A xxx.xxx.xxx.xxx it will return the machine's name(1st entry) and MAC address(at bottom), that is, if it is a computer. The name may give you a clue to where the device is located. If there is no name then it is most likely a network device. Using the MAC address, you can go to the following website to find the vendor associated with the MAC. http://www.coffer.com/mac_find/ Sometimes knowing the vendor of the network card can point you to the computer.
    Hope it works in finding the needles in the haystack.
     
  5. Squashman

    Squashman Trusted Advisor

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    If it is a computer that logs into a Domain on Netware network, you could create a login script that tells you computer name, login name, etc, etc....

    I would also run a little program called NBTscan to see what info it comes up with.
     
  6. axis77

    axis77

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    if this ip is on your local domain or network then why not ping it with -a to see if comes back with a name if its a pc ex. ping -a 192.248.564.54...if its a device like router, switch, or printer well have fun with that....also this company you work for does have a list of all ips being used....
     
  7. O111111O

    O111111O

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    Do all of the above, then download nMAP from sourceforge.

    nmap -sS -O xxx.xxx.xxx.xxx will tell you what TCP ports it's listening on, attempt OS detection, and if it's a winders machine will tell you what release/hostname/etc.
     
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