That's not entirely true. The ports are called span ports or monitor ports 
depending on the switch brand.

And depending on the capabilities of the switch you can monitor either one 
VLAN, several VLAN's or the entire switch. On some low-end switches you 
might only be able to monitor one VLAN though.

Check with your vendor, or the website of your favourite switch maker for 
pricing and availability.

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: 22. november 2001 19:49
To: Marc Mc Guinness
Cc: [EMAIL PROTECTED]
Subject: Re: Multiple port mirroring?



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AFAIK, it is called port monitoring and port spanning on switches.  You can 
monitor multiple ports, all the ports should be on the same VLAN though.

On Mon, 19 Nov 2001 07:03:30 +0100, Marc Mc Guinness 
<[EMAIL PROTECTED]> wrote:
>Hello!
>
>Am Mittwoch, 14. November 2001 19:24 schrieb David Ellis:
>>What you could actually do is create a mirrored port on your
>>switch and sniff all the traffic that way
>
>Does anybody know something about switches, which can do multiple
>port mirroring? What I want is one port, that gets all the traffic
>of the other ports on that switch.
>
>Best regards,
>
>Marc Mc Guinness
>
>

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