NO CONNTRACK FOUND [DROP]

[Johannes Kingma]

On the latest firmware I receive quite a number of NO CONNTRACK FOUND [DROP] kernel errors, about 5 every second.

What is the cause of these errors and are they harmful or indicate a configuration error

What can I do to prevent these errors from occurring?

[Ronald Sullivan]

Did you ever find a resolution to this problem? I am having the same issues, and have not recieved even a word from Cisco about it. Very poor.

[Johannes Kingma]

I did not. I took a holiday to florida and after that it did occur again.

So the official resulotion to this problem is: take a holiday to florida

[Ronald Sullivan]

After doing a lot of research, the best I found was that this was just normal behind the scenes firewall activity that was being logged in the Kernel Logs. Prior to the update, kernel logging was not turned on by default.

I turned the kernel logging off, and no more errors. The device has worked fine with no other errors, so that is all that matters in the end.

But I do like your resolution better. :-)