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Webcast-Catalyst9k
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Span Port - Mirror Certain traffic

Hi All,

Following example -

 

I have my Inbound Internet connection coming into my switch into a Public VLAN. Coming into that Inbound connection is email from the outside world, among other traffic. Is there a way for me to SPAN this port but send only the email traffic to my monitoring device or is it a case of you either see all traffic or none? I wonder also, the traffic is most likely encrypted at this point which means probably can't determine what is what....

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