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What device is it?

Posted on 2008-02-04
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Last Modified: 2009-12-17
I have a device in my network that has an IP address of x.x.x.x and I can not locate the device or know what kind of device it is. I'm trying to find out what device it is so that I can trouble-shoot an issue involving that address and a database. Is there anyway to find out what device is using that static ip address? I also have the device's mac address. I know it's a static address because it's not in the DHCP leases, no reservations, and no exclusion list in the network.  
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Question by:rhellinger
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Expert Comment

by:Mark Damen
ID: 20817473
If you know what the IP address is, then you can try:

ping       (ping the device, does it respond?)
ping -a   (should give you a hostname, might give you clues)
telnet x.x.x.x     (may accept a connection, giving you more clues)

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Expert Comment

by:Delphineous Silverwing
ID: 20817492
Have you tried telnetting into the device?  Try ports 25, 52, and 110.
How about using your Internet Browser to it?

If the device is reporting to your Windows Infrastructure,
     you can try from a command line NBTSTAT -A xxx.xxx.xxx.xxx
     Note the 'A' should be capital
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Expert Comment

by:thsteph
ID: 20817558
any wireless network you might be using?
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Author Comment

by:rhellinger
ID: 20817615
Thank you all-

I'll try some of the suggested solutions and get back to you guys.

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Author Comment

by:rhellinger
ID: 20817729
I have a wireless network going on with 12 Cisco 1200 Series AP's, all static addresses.
 
I've tried telnetting the ip address w/ different ports (25, 52, 110), pinging w/ switches (I get replies back), and NBTSTAT -A x.x.x.x.

I need to find this machine......I pinged the ip and got replies back so it is communicating.

I'm somewhat stuck.
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rhellinger earned 0 total points
ID: 20817888
Thank you all-

I found out that it was a apple machine on the network.
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Expert Comment

by:thsteph
ID: 20832306
:)
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Expert Comment

by:Pattonair_IT
ID: 22609779
We found out that it was on old AXIS printer server on our network using Telnet.  Thanks guys!
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