Need to run a packet capture using Wireshark to monitor a few ports on a Catalyst 3550 switch

I am looking for detailed instructions on how to setup the SPAN, and specify ports to be monitored.

I am familiar with connecting a PC to the Switch and capture the packets using Wireshark
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Don JohnstonInstructorCommented:
Assuming the traffic you want to capture is on the f0/6 port:

monitor session 1 source interface f0/6

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And your wireshark host in on f0/3

monitor session 1 destination interface f0/3

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JohnBusiness Consultant (Owner)Commented:
If you need a very flexible Packet Sniffer that has Advanced rules for Port, IP, MAC capturing, consider using Comm View ( This is a very advanced packet sniffer that I use myself.
Don JohnstonInstructorCommented:
Non-compliant post deleted.
Thanks John.
I was going to send a PM to Nader... but I didn't want to overstep. :-)
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