Ethernet Taps

["Security Tester" <idstester () hotmail com>]

I think you are confusing two issues here...

If you want to "sniff" a switch, you will need to either span a port, or 
implement some sort of ARP spoofing using a tool such as DSniff.

If you are in the market for taps, specifically ones for say an IDS system 
to reside on your main trunk, I would recommend looking at Shomiti's Century 
tap.  I am not sure if they were recently bought out, or merged with with 
anyone, but you can still find info on their taps via Google.

Hope this helps a bit, but could you maybe give some more info on what you 
are trying to do exactly?

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