Re: [PEN-TEST] Datacenter Wiring

[Peter Van Epp <vanepp () SFU CA>]

> The attached snooping device doesn't need to talk, only listen.  If it can
> be quiet, it need not reveal its MAC address, and hence not reveal its
> presence on the line.  I have read that old style AUI cards have a separate
> "transmit" pair that can be clipped...I am sure that a suitable device could
> be constructed, including wireless LAN equipment with me on the receiving
> end a few buildings away.

        http://www.shomiti.com and look for the Century taps. Puts a tap in a
10/100 UTP link and breaks out the full duplex pair (inverting tx to rx for
one side) to two monitor ports while maintaining link. They are fairly
expensive compared to a diode (although perhaps not by the time you get a
diode in to a properly terminated Cat5 cable :-) if you value your time at all).
        The same can be done for fibre with an %80/%20 optical splitter from
www.netoptics.com. Am a happy customer of both ...

Peter Van Epp / Operations and Technical Support
Simon Fraser University, Burnaby, B.C. Canada