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тАО09-13-2010 09:50 PM
тАО09-13-2010 09:50 PM
Could SIM be flooding my OAs down?
Hello,
We have had to reset our OnBoard Administrators on our new HP Blade Enclosures for few times. OA seems to be working but no access to network. We noticed following from OA log files.
There are several messages OA: Authentication failure for user sim from xxx.xxx.xxx.xxx, requesting web service
Soon after followed by
Kernel: Network packet flooding detected. Disabling network interface for 2 seconds
Kernel: Network packet flooding detected. Disabling network interface for 4 seconds
Kernel: Network packet flooding detected. Disabling network interface for 8 seconds
Disabling network interface for 4 seconds
Kernel: Network packet flooding detected. Disabling network interface for 8 seconds
Kernel: Network packet flooding detected. Disabling network interface for 16 seconds
Kernel: Network packet flooding detected. Disabling network interface for 30 seconds
Kernel: Network packet flooding detected. Disabling network interface for 30 seconds
Why SIM keeps trying after so many login failures? Older Firmware on OA doesn't have disabling network interfaces for xx seconds feature. It also detects flooding, but it hasn't gone to network blackout.
We have had to reset our OnBoard Administrators on our new HP Blade Enclosures for few times. OA seems to be working but no access to network. We noticed following from OA log files.
There are several messages OA: Authentication failure for user sim from xxx.xxx.xxx.xxx, requesting web service
Soon after followed by
Kernel: Network packet flooding detected. Disabling network interface for 2 seconds
Kernel: Network packet flooding detected. Disabling network interface for 4 seconds
Kernel: Network packet flooding detected. Disabling network interface for 8 seconds
Disabling network interface for 4 seconds
Kernel: Network packet flooding detected. Disabling network interface for 8 seconds
Kernel: Network packet flooding detected. Disabling network interface for 16 seconds
Kernel: Network packet flooding detected. Disabling network interface for 30 seconds
Kernel: Network packet flooding detected. Disabling network interface for 30 seconds
Why SIM keeps trying after so many login failures? Older Firmware on OA doesn't have disabling network interfaces for xx seconds feature. It also detects flooding, but it hasn't gone to network blackout.
2 REPLIES 2
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тАО09-14-2010 07:23 AM
тАО09-14-2010 07:23 AM
Re: Could SIM be flooding my OAs down?
It seems to be a trend that the security of OA and ILO's will be improved. You need to verify your system credential for the OA if they use only the correct login the problem should disappear. In the past most of the installation used a list of global credential. This will not work any longer with such devices. It is the first time that I heard about this problem on HP devices. Thanks for your input.
We saw the problem in our company with other vendors two years ago. The issue was very similar but no log entry at this time!!!
You did a discovery / identify and your access to the managed device was blocked, because the management interface thinks an attack happens.
At least with SIM you can block the use of other credential.
Hope this helps
BPE
We saw the problem in our company with other vendors two years ago. The issue was very similar but no log entry at this time!!!
You did a discovery / identify and your access to the managed device was blocked, because the management interface thinks an attack happens.
At least with SIM you can block the use of other credential.
Hope this helps
BPE
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тАО09-14-2010 09:22 PM
тАО09-14-2010 09:22 PM
Re: Could SIM be flooding my OAs down?
Hello,
I fixed the login. Looks like the problem with OA was related to 3.0 and 3.10 firmwares and having that SIM flood in log file was just coincidence.
I fixed the login. Looks like the problem with OA was related to 3.0 and 3.10 firmwares and having that SIM flood in log file was just coincidence.
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