Re: Geting MAC address from a network connection

From: /dev/rob0 (rob0_at_gmx.co.uk)
Date: 08/18/03 

Date: Mon, 18 Aug 2003 10:34:04 -0700

In article <2b6fa7.0308180705.13684305@posting.google.com>, tech wrote:
> 1. Can i get MAC address of a nic from a remote computer?

Use ping or any kind of network connection thereto, and it will be in
your arp(8) table: /sbin/arp or "cat /proc/net/arp".

> 2. Can a network card send its MAC, even there is no os running?

If it has a bootable ROM chip, and if the BIOS is configured to boot
from it, it will send a bootp request. Run a bootp server, and I'm sure
it will log the MAC. I don't know of any other way.

Sounds like your opponent may have done a good job in securing this
network. There could also be intrusion detection and log monitor systems
at work. If not there should be. :) 

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