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itsp1965 (IS/IT--Management) (OP)
27 Jan 04 11:25
It seems that when trying to track down a machine given its MAC address we're always at a loss.  Therefore anyone know of an RARP (Reverse ARP) tool for Windows.  Thanks.
Kressmark (Instructor)
28 Jan 04 19:40

Would this work for you?
I guess you could catch it as it happends, but after the fact might be harder.

itsp1965 (IS/IT--Management) (OP)
4 Feb 04 9:29
Thank you Kressmark, but that seems to be too much of a tool for performing this simple task.
JBruyet (IS/IT--Management)
4 Feb 04 13:59
What I do is check the port tables in my network switches for the MAC address. Then I can tell which jack is connected to that port and that tells me where the machine is.


Joe Brouillette
pavloc30 (TechnicalUser)
7 Feb 05 7:04
I am also seeking the same kind of windows based tool (RARP a given MAC to obtain the IP).
I am checking my CAM and mac-address-tables and want to add descriptions for server connections / produce topology diagrams. So I have the MACs and want resolve to IP them to name - the later stage not being a problem.
If you have found one please let me know.

Helpful Member!  bofhrevenge2 (MIS)
7 Feb 05 7:26
Get Mac will scan a subnet and return a list of MAC addresses and the IP's.

I don't mean to sound bitter, cold, or cruel, but I am, so that's how it comes out - Bill Hicks

pavloc30 (TechnicalUser)
7 Feb 05 13:09
thanks bofhrevenge2,
This doesn't do exactly what I need, but as it exports directly to a .csv I will able to find the info after a few network scans!

Castor66 (IS/IT--Management)
7 Feb 05 13:24
Why not just issue an 'arp -a' command?
tmt7734 (IS/IT--Management)
7 Feb 05 14:15
Arp -a will work if you have communicated with the machine in question via ip. If you have DHCP you could look a the leased addresses. Also, there is a cool tool called megaping that you can get from
pavloc30 (TechnicalUser)
8 Feb 05 5:40
Hi All,
Sorry castor66 I want REVERSE arp ; given a MAC find the IP not the other way around.
tmt7734 thanks for that; I do have a couple of ping sweepers but have a lot of networks, subnetworks and vlans. I also have a combination of static and dynamic addressing. I am trying to cut corners and find a RARP utilty that I cut and paste a MAC in to and it would do the reverse arp (IP resolution). My best bet so far is the cc-get-mac from  (suggested by bofhrevenge2, as I can save the output (including DNS resolution) to a .csv. However I still need to scan all the IP ranges first!
If any one knows I specific utility for RARP I would be interested. (Please realise I understand ARP, RARP and windows and cisco based cmds)
Many thanks!  

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