Ipsec not using AES-NI?
I am configuring a new pair of firewalls to provide Site to Site gigabit VPN link. Both machines have i7-4500U AES-NI enabled CPUs and run 2.4.2-RELEASE-p1 (amd64)
Crypto is set to AES-NI and is working
openssl speed -evp aes-256-cbc
type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes aes-256-cbc 79567.75k 281417.23k 1357269.13k 3620354.84k 74564763.65k
I see following iperf3 results between two devices (not firewalls themselves) on both ends:
No VPN 930 Mbits/sec OpenVPN 783 Mbits/sec IPSec 439 Mbits/sec
IPSec ESP is set to 'AES_CBC_128/HMAC_SHA1_96/NO_EXT_SEQ'
Performance of IPSec seems not to change no matter what I do: disable crypto, set to AES-NI or BSD Cryptodev or both (of course with reboot after each change). openssl speed does see the changes but IPSec does not. Any idea why this can be?
Changed encryption to: AES-128-GCM / SHA256 / DH 14 and IPSec performance jumped to 877 Mbit/sec.