We have asked our supplier about month ago for the Mikrotik device with IPSec AES128 thoughput about 100-140 Mbit/s. He told us that RB1200 (in specification IPSec AES device is hardware accelerated) is replacement of RB1100 (now I understand that replacement of RB1100 is RB1100AH ). We have bought 2 x RB1200 devices to create EoIP tunnel over IPSec with AES128. After configuration performance is honorable: about 7 Mbit/s and latency 25-27 ms. We have latest OS 5.8. I would like to find out how to solve this problem.