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Re: Promiscuous Mode
From: "Amar Kulo" <dzoner () gmail com>
Date: Thu, 20 Mar 2008 08:35:34 +0100

Wikipedia says:

In computing, promiscuous mode is a configuration of a network card
that makes the card pass all traffic it receives to the central
processing unit rather than just packets addressed to it — a feature
normally used for packet sniffing.

Each packet includes the hardware (Media Access Control) address. When
a network card receives a packet, it checks if the address is its own.
If not, the card normally drops the packet. But in promiscuous mode,
the card doesn't drop the packet, thus allowing the computer to read
all packets.

Last 2 senteces are easiest description of promiscuous mode on network card.

http://en.wikipedia.org/wiki/Promiscuous_mode

Regards
Amar


On Wed, Mar 19, 2008 at 2:51 PM, Simon Templar
<73696d6f6e74656d706c617200 () googlemail com> wrote:
Hello everybody,

 I have a question concerning "Promiscuous Mode", I know what it is,
 but I would like to know exactly what is happening behind the scenes
 when I change my NIC to this mode

 For example: what is the technicality in writing the command:
  ifconfig eth0 promisc?

 Your help is so much appreciated.
 Best regards.

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