Re: Small hardware network sniffer - does it exist?

From: FocusHacks (focushacks@gmail.com)
Date: Thu Nov 02 2006 - 16:43:36 EST


http://www.soekris.com/

They have some pretty small machines that are essentially headless
486s that can run BSD or Linux, and many of them have
power-over-ethernet, multiple NICs, WiFi ability, etc.

On 11/2/06, Petr.Kazil@eap.nl <Petr.Kazil@eap.nl> wrote:
>
> I have ordered a few hardware keyloggers to play with
> (http://www.keelog.com/) and I was wondering if the same idea exists for
> networks?
> A device that you could tape under a desk, and that would act as a
> transparant bridge, sniffing all traffic.
>
> I know that you can use arp-spoofing to get a similar result (easier,
> better?), and I know about hardware network taps.
> But I'm still interested in the theoretical possibilities of this idea.
>
> I have a few old laptops, but these have just one PCMCIA network card, so
> bridging is not possible (well, with the right kind of network cards you
> can get two in that slot - I'll see if you can still buy them). But
> laptops are too big and heavy.
>
> I've looked at microcontrollers with ethernet adapters, but here I find
> webserver appliances with just one network interface. They're small but I'm
> not sure if you could run an OS and a sniffer on them. I've looked at
> miniboards but they are very expensive, too expensive for "just a toy".
>
> But, considering that you can get a 2-cigarette-pack sized Pix-firewall,
> such hardware must exist. But I haven't found the right keywords yet. Any
> ideas?
>
> Greetings, Petr Kazil
>
>
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