Great Circle Associates Firewalls
(October 1997)
 

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Subject: Promiscuous mode
From: Rik Hemsley <hemsleyr @ keyline . co . uk>
Date: Mon, 13 Oct 1997 13:24:39 +0000
To: Firewalls @ GreatCircle . COM

Hi, I'm new to the list.

During my seacurity self-teaching process, I've
heard about network interfaces being in 'promiscous'
mode.. and this being a Bad Thing(tm)

I get the idea, but what kind of workarounds are
there, aside from encrypting every communication ?

A sniffer needs a machine to run on; and to read packets
over the local net, it needs to be inside, right ?
( or can it spoof ? )

Is it every necessary for an interface to be in promisc.
mode and if not, how do you 'switch it off ?'

Thanks in advance,
Rik




Follow-Ups:
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From: "Denis Koo N.C." <denis . koo @ hkcg . com>
Next: Re: my Promiscuous mode query
From: Rik Hemsley <hemsleyr @ keyline . co . uk>
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From: Brian Betterton <brian_betterton @ INS . COM>
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