Mirroring a port for traffic capture

Mirroring a port for traffic capture

In order to analyse the traffic coming from and going to a specific device, you might have to mirror the port it is plugged into.

To do so, connect to the switches CLI using Putty or any SSH client software.
Enter username and password ( default :  username=admin , no password )

then :
  1. # configure terminal
  2. (config)# monitor source interface GigabitEthernet 1/<source port number> both
  3. (config)# monitor destination interface GigabitEthernet 1/<destination port number>

Once you are done with monitoring, to deactivate the port mirroring :

  1. (config)# no monitor destination
  2. (config)# no monitor source interface GigabitEthernet 1/<source port number>
  3. (config)# exit

You can reboot the switch to discard the mirroring configuration as well.

    • Related Articles

    • LumiNode LED indicators

      There are various LEDs on the LumiNode. Here is a list of the LEDs, the possible colours, and the meaning of each colour: DMX Port Status Meaning DMX Input Green Blinking: Active input DMX only (output mode) Cyan Blinking: DMX activity DMX + RDM ...
    • GigaCore switches Fiber Optic cabling

      This document will describe how to connect all your network devices via fiber optic and what to look out for on hardware level. SFP Technical Info In order to connect all the fiber links in the correct order we need to know which side of the SFP ...
    • HTTP Commands for EthDMX

      Recall a profile : Change the parts in red to match your situation : http://<IP_ADDRESS_OF_THE_NODE>/cgi-bin/toolbox_profile.cgi?profile=<PROFILE_NUMBER>&recall_profile_nonet=No+network+settings This will not recall the network settings. ...
    • Gigacore Switches and Avid S6L

      As most of you probably know by now, Gigacore switches can be used to connect the different units in an Avid S6L system. The procedure to configure Gigacore switches is described by Avid in this document : ...
    • How to configure LumiNode to work with Robe RoboSpot

      In this document we will show how to configure your setup to run the Robe RoboSpot through your existing network infrastructure using the LumiNodes. In this setup we have one LumiNode at the base station side to create the DMX input to the system and ...