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Reset outside window - false alarm?

I'm getting thousands of these a day, most times (99.99%) with internal sources, sometimes with an external source.
Firmware is 17.1.3 MR3



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  • To update our community,

    This is being investigated under the issue ID: NC-39687

    We will publishing more information shortly, please stay tuned.

    Regards,


    Florentino
    Director, Global Community & Digital Support

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  • Hello, After I have solved some of the IPS errors with the update 17.1.3 for me once I have with some appliances in the LOG still the message "Reset ouside Window".

    After a few tests of the configuration and comparison of the rules I noticed the point in the CLI.

    On the left side I do not receive the message in the IPS log. In the right today already 7k.

    the difference would be "Detect_Anomalies" and "TCP_Block"

    Is this just an information or a value that you can edit? And if so how? Would like to test it with a smaller appliance on which I also get this error.

    And just for information: The 2 appliances are completely the same configuration, both are each behind a SG with also identical configuration.

    Would be great if someone has an idea about it. Then I could test this.

    Thanks and best regards

    best regards,

    Pascal

    IT-SECURITY CONSULTANT 

    Certified Architect - XG | UTM | MOBILE 

  • Basically you can change those values. 

    Simply replace show with set and try to "doubletab" through the config. 

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  • I thought so too.

    I tried it with "set ips_conf update key DETECT_ANOMALIES value no". The IPS then restarts and reports "successfully updated".
    Unfortunately, the value of "show" remains the same.

    Would have been just such an idea because it is on the one appliance which receives no IPS messages just different and these values ​​are not even present in the version 17.0.6

    Thanks in advance and best regards

    Pascal

    best regards,

    Pascal

    IT-SECURITY CONSULTANT 

    Certified Architect - XG | UTM | MOBILE 

  • You took the wrong path. Do not use update and ips_conf. Instead use ips.

    console> set ips tcp_option detect_anomalies disable

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  • Ahhh thanks :) It had tried so because it was not displayed to me with tab as an option.

    But that actually seems to cause it. After the change no "Reset outside window" messages in the IPS log.

    Now set up your own IPS rules for existing firewall rules and then that's ok.

    Thank you and best regards

    best regards,

    Pascal

    IT-SECURITY CONSULTANT 

    Certified Architect - XG | UTM | MOBILE