cisco

Cisco SPAN (Port-Mirror) Configuration

Daniel Kuchenski

Example: On my Cisco switch I want to mirror port 10 to port 20 so I can plug in my laptop (into port 20) with wireshark and do packet captures

(config) #monitor session 1 source interface fastethernet0/10
(config) #monitor session 1 destination interface fastethernet0/20

and then verify the configuration

switch #show monitor session 1