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Old 11-09-2006, 03:57 PM   #1
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Default MAC address question

There's a PC on my network that is taking my server's IP address. I've checked all the known PCs on the network, all of their IPs are set statically and none have this address, and I've checked the DHCP range to make sure the server isn't giving out that IP. I have the MAC address of the machine, but I would like to be able to get the PC name. Anyone know of a way to do that... a Windows command or third party software? I'm sure you can imagine what kind of grief this is giving me... any help is greatly appriciated.
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Old 11-09-2006, 05:15 PM   #2
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Default Re: MAC address question

Not sure if it will work but ya could try using the ARP command, and use that to change the IP address that the MAC address is configured to using the arp -s command. Heres a link to some info on it.
http://www.brother.com/european/netw...tcpip-arp.html
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Old 11-09-2006, 07:05 PM   #3
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Default Re: MAC address question

The correct command to show the ARP table is to use ARP -a

This will show windows MAC address to IP address resolution. However this is nto exactly what you wanted.

I'd start by running a packet sniffer on the network and finding all traffic broadcasted by the MAC address. If it's running NetBIOS (Windows PC) you should be able to resolve the name easily to the MAC address.



However, a skilled person can easily fake all of this infomation.
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Old 11-09-2006, 07:31 PM   #4
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Default Re: MAC address question

Quote:
Originally Posted by DJ-CHRIS
The correct command to show the ARP table is to use ARP -a

This will show windows MAC address to IP address resolution. However this is nto exactly what you wanted.

I'd start by running a packet sniffer on the network and finding all traffic broadcasted by the MAC address. If it's running NetBIOS (Windows PC) you should be able to resolve the name easily to the MAC address.



However, a skilled person can easily fake all of this infomation.
Yeah and the arp -s command will allow him to change the IP address asociated with the MAC, check the link!
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Old 11-10-2006, 04:38 PM   #5
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Default Re: MAC address question

Great, thanks. I'll try this out and see if i can bust this guy.
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