The logs from CISCO ASA fierwall is currently in the following format.




I want to remove messsage class from logs




I checked in internet and cicso configue help guide, then tried the commands

   no logging class session

But still coming the logs with message class. Please help me

   no logging emblem

Is this work?

Which is the actual command for that?

Thanks in advance.

  • Did you clear the log after applying that command?
    – Ron Maupin
    Oct 7, 2015 at 13:44
  • No Ron. Thanks for ur reply. Could you tell me that these steps are correct or not?
    – apm
    Oct 7, 2015 at 14:11
  • You appear to want to quit logging class 6 messages. cisco.com/c/en/us/td/docs/security/asa/asa82/command/reference/…
    – Ron Maupin
    Oct 7, 2015 at 14:27
  • Not really. I want to remove the field "message_class" from the logs. I tried the command "no logging class session"
    – apm
    Oct 8, 2015 at 5:38

2 Answers 2


Thanks for the comments and answers. I got the correct answer today. the first message is of emblem format and second one is default format.

We can go back to default format by using the following command

no logging emblem 

For more details look here

  • Accept your answer so that it doesn't keep popping up, looking for an answer, forever.
    – Ron Maupin
    Oct 8, 2015 at 16:36

You can enable or disable classes or specific messages, but you can't change the message format. You will have to do that with an external program.

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