Hi, all:
However, you have to take into account that your knowledge about MAC
addressess is reduced to your LAN.
If you do ARP of an IP address farther than your nearest router you will
receive the MAC address of this router one.
Greetings,
Emilio Herraiz Herraiz
Consultor
Telefónica Soluciones
Sor Ángela de la Cruz, 2, 8ª Planta - Madrid
Tlfno: (34) 91-312.53.36
Móvil: (34) 620-83.65.26
"Dana Epp"
<[EMAIL PROTECTED] Para: <[EMAIL PROTECTED]>, <[EMAIL
PROTECTED]>
> cc:
Asunto: Re: Getting an IP address
from a MAC address
02/07/2003 19:06
Have you considered using arp and simply checking your arp tables?
If you are on the same net, you can do a single ping to the broadcast to
get
every card to respond, and then do something like:
arp -a | grep <mac>
Where <mac> is the MAC addr you are looking for. Note that on windows each
octet is separated by a dash, and on most unix' its a colon.
ie (using an example of a 192.168.1.0 class C block):
Windows:
ping -n 1 192.168.1.255
arp -a | grep 00-00-00-00-00-00
Unix:
ping -c 1 192.168.1.255
arp -a | grep 00:00:00:00:00:00
You might want to put a delay/sleep in there after the ping to give the
network chatter enough time to respond. Otherwise that will do what you
want.
Good luck.
---
Regards,
Dana M. Epp
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, June 30, 2003 10:54 PM
Subject: Getting an IP address from a MAC address
> Hi all,
>
> I was wondering if anyone knows of a tool which can determine an IP
address
> from a MAC address???
> I have found plenty of tools which will work the other way, but nothing
for
> what I am after.
>
> Thanks in advance
> Steven P
>
>
>
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