Ethereal-users: Re: [Ethereal-users] port mirroring disables browsing

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From: Jens Link <jenslink@xxxxxxx>
Date: Wed, 02 Nov 2005 11:06:43 +0100
"Carte, M Elliot" <mecarte@xxxxxxxxx> writes:


> However, when I do this I can no longer reach the default gateway
> (access Internet) from the laptop (monitoring port). If I try before I
> even start Ethereal, I still can't, so it must be the port
> mirroring. Does anyone know why this would be? Can you not send and
> receive your own packets when youâ

Here's a quote form the Cisco documentation regarding SPAN (monitoring)
ports. It save to assume that it's the same with other components. 
Check your documentation for further details. Solution: Use to
Ethernet-Cards, one for monitoring, one for Internet access.

,----
| # When you configure a switch port as a SPAN destination port, it is no
|   longer a normal switch port; only monitored traffic passes through the
|   SPAN destination port.
`----
<http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_guide_chapter09186a00800c6f14.html>

Jens