IPsec low speed

Hi!
CCR1009-7G-1C-1S+. Firmware 6.39.2.
Mikrotik IPsec (my side) → StrongSwan (client side). Hash Algorithm sha256. Encryption Algorithm aes-128. DH Group modp3072.
On my side. Speed: download - 10Mbit/s, Upload - 50Mbit/s.
CPU load 40%.
Why download speed so low? How to increase it?

Whats the internet service at the strong swan side? Probably just 10M upstream?
-Chris

CPU load of 40% on a CCR1009???
What process is using that much CPU?

200M

photo_2017-07-21_13-01-51.jpg
The new tests are more successful - 40-90M.
Monday will be tested on the production.

Remember in this scenario you should run “Current” firmware, not “Bugfix”. (6.39.2)
In this version a problem was solved that causes decreased performance when using IPsec on systems with sub-optimal TCP implementation.
(notably Microsoft Windows)

Oh, sorry, I added the firmware version to the beginning.

Just to be clear 200M upload on the client side? What OS is the client?

I don’t know :frowning:

The problem is not relevant, it’s not about speed.