Sophos XG Firewall: How to monitor bandwidth usage between IPs in realtime

Overview

  • This article describes the steps to monitor XG Firewall traffic in real time from the command line. For example, to identify what IP is using bandwidth.

Configuration

  • To monitor traffic usage in real time, do the following:
  • Log in to the console interface of the Sophos XG firewall device by connecting the console wire or connecting via SSH with Putty software.
  • Next enter the password to login to Sophos XG and select Option 5 and Option 3 to access Advance Shell.
  • Enter the iftop command line -i IFNAME with IFNAME is the port name we need to track.
  • Usually we usually monitor bandwidth at the LAN port.
  • After entering the command and pressing the Enter key the following table will appear as follows.
  • To stop the tool type Q to quit.
  • To show the traffic separated by source and destination port, append -P to the above command:
  • iftop -i IFNAME -P

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