System Message Logging


Two brothers are working as network consultants. One of their customers asked them to implement logging system messages on their routers. There is no central logging server so you need to configure the routers for optimal logging.


  • All IP addresses have been preconfigured for you.
  • EIGRP has been configured for connectivity.
  • Output from debug messages on router Erik should be sent to the console but limited to 3 messages per second.
  • Both routers have to save debugging messages to their buffers up to 4096 bytes.
  • Messages on the console log should not interrupt any command output.
  • When you login router Rene using telnet you should only see messages from level “notifications” and higher.




System Message Logging

Configuration Files

You need to register to download the GNS3 topology file. (Registration is free!)

Once you are logged in you will find the configuration files right here.

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Written by René Molenaar - CCIE #41726

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About the Author: Rene Molenaar

René - CCIE #41726 is the creator of where he shares CCNA, CCNP and CCIE R&S labs. He also blogs about networking on


  1. logging buffered 4096 debugging
    logging rate-limit console all 3
    logging monitor notifications

    line con 0
    logging synchronous



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