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New Member

Remotely finding the ip address of a device

Hi all,

Can anybody tell me how to remotely locate the ip address of a machine thru layer 2 and layer 3?

Thanks in advance,

Stanly Philip

4 REPLIES
Hall of Fame Super Bronze

Re: Remotely finding the ip address of a device

If you have the MAC Address, from the L3 device type

#show arp | include [mac-address]

Silver

Re: Remotely finding the ip address of a device

If you know to which L2 device the PC is connected on the L2 switch with show mac address-table | include "interface" you can retrive the connected device MAC address (in this case you should know to which port device is connected). And after this you can follow Edison's suggestion: show arp | include "mac address".

bye

FCS

Please rate me if I helped.

New Member

Re: Remotely finding the ip address of a device

Thanks to both of you...but in the same way if we have the ip address of the host and want to know the location of the machine thru layer 2. How is it possible?

Thanks,

Stanly

Hall of Fame Super Bronze

Re: Remotely finding the ip address of a device

First you get the mac address from the L3 device by typing

#show arp | include [ip address]

then you go to the L2 device and type

#show mac-address-table | include [mac-address]

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