Re: [SLUG] eth0: Promiscuous mode? Should I call a counselor for the box?

From: Steve (steve@szmidt.org)
Date: Thu Jun 10 2004 - 09:48:27 EDT


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On Thursday 10 June 2004 09:19 am, Patrick Grantham wrote:
> What does this mean?
>
> Jun 8 20:59:03 server1 kernel: eth0: Promiscuous mode enabled.
> Jun 8 21:15:04 server1 kernel: eth0: Promiscuous mode enabled.
> Jun 8 21:18:16 server1 kernel: eth0: Promiscuous mode enabled.
> Jun 8 21:21:28 server1 kernel: eth0: Promiscuous mode enabled.
> Jun 8 21:24:40 server1 kernel: eth0: Promiscuous mode enabled.
> Jun 8 21:30:03 server1 kernel: eth0: Promiscuous mode enabled.
> Jun 8 21:33:15 server1 kernel: eth0: Promiscuous mode enabled.
> Jun 8 21:36:27 server1 kernel: eth0: Promiscuous mode enabled.
> Jun 8 21:39:39 server1 kernel: eth0: Promiscuous mode enabled.

This means that instead of only listening for network traffic addressed to
that network card, it's listening on ALL traffic. This is done when f. ex.
you turn on a program like ethereal, which let's you view that traffic.

- --
Steve

"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
                                Benjamin Franklin

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