From: kuisma (kuisma@ping.se)
Date: Sun Dec 04 2005 - 13:24:58 EST
Tricky;
a) The MAC address may no have an IP address at all
b) The MAC address may send IP frames for many IP addresses (a router
for example)
You can do a few tricks;
1) Broadcast Reverse ARP for that MAC address, but it's likely not to
give any response at all.
2) Send that MAC address a packet with YOUR OWN IP as target, and see if
you get it back in return. You then know that the MAC address exists, it
can speak IP and have IP forwarding capabilities.
3) Send that MAC address an ICMP Echo on IP broadcast address(es). You
MAY get a reply, and the reply may give away the primary (or closest) IP
address, or it may return the broadcast address as source. But remember,
an ICMP Echo Request destined to an IP broadcast or IP multicast address
MAY be silently discarded according to rfc792.
Good luck,
-- Mikael Kuisma, Ping Research
Roni Bachar wrote:
>Hi again
>
>I guess I didn't explain my self good.
>What I want is tool that i can do:
>Ping 00:0F:EA:8C:FC:5A
>
>
>And in return get the ip of this mac
>
>
>
>
>
>
>
>
>
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