Yeah, you're correct. A second port is needed for the probe to send
data to a network management system. I have tried this a few times
using Sniffer Pro. You cannot put data on the network over the SPAN
port, it is only intended for listening to the configured ports.
-j
Priscilla Oppenheimer wrote:
> Hi folks,
>
> If I connect a Sniffer-like device to the SPAN port of a switch, will the
> Sniffer-like device be able to transmit data?
>
> My guess is no. From my reading on Cisco's SwitchProbe external hardware
> probes, it appears that the SwitchProbe needs an additional port to send
> data to a network management system. One port connects to a SPAN port on
> the switch and the other port connects to a normal port and is configured
> in "management mode."
>
> But, does anyone have experience with trying to send from a device
> connected to a SPAN port?
>
> Thanks
>
> Priscilla
>
> ________________________
>
> Priscilla Oppenheimer
> http://www.priscilla.com
>
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