Ccna routing and Switching Complete Study Guide

monitor session 1 source interface f0/1

Step 2: Associate a SPAN session number of the sniffer with the destination interface.

S1(config)#

monitor session 1 dest interface f0/2

Step 3: Verify that the SPAN session has been configured correctly.

S1(config)#

do sh monitor

Session 1

---------

Type                   : Local Session

Source Ports           :

    Both               : Fa0/1

Destination Ports      : Fa0/2

    Encapsulation      : Native

          Ingress      : Disabled

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Troubleshooting IP Network Connectivity 

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Now connect up your network analyzer into port F0/2 and enjoy!