Dear friends please help me to solve next problem.
I have:
L2tp server - CCR1016-12G
115 ipip tunnels and 150 l2tp tunnels + ipsec
Firmware 6.48.5
CPU 34%, free memory 75%.
Everyday, I have to restart some of l2tp clients because their l2tp session terminated every 1 or 2 minutes. Log from one of such client is in attach. After restarting, client works correct 20-24 hours and then problem repeats. Each day l2tp clients with such problem are different.
I find out that when total number of l2tp tunnels with ipsec less then 85 - no such problem at all.
Or ipsec is off on all clients. Also no problem.
For example I can use 115 ipip tunnels, 84 l2tp+ipsec and 80 l2tp without ipsec tunnels and such problem doesn’t happen.
What is wrong with ipsec? Why such limitation?