Cisco SPAN (Port-Mirror) Configuration

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

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

and then verify the configuration

switch #show monitor session 1

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s