I had found an older thread saying that the "XCBC" hashes were OK, since they 
were effectively "free" as long as you used one of the AES-GCM ciphers.
Same thread (can't find it now, sorry) also indicated that the GCM mode ciphers 
were more, uh, completely??/rapidly?? accelerated than CBC.
Can't vouch for the accuracy, this is just what I found when I had the same 
question last year.
-Adam

On December 9, 2017 2:56:07 PM CST, Chris L <[email protected]> wrote:
>AES-GCM with all hashes disabled in the ESP/Phase 2.
>
>
>> On Dec 9, 2017, at 12:03 PM, Karl Fife <[email protected]> wrote:
>> 
>> You might try...
>> 
>> (Wait for it)
>> 
>> ...AES.
>> 
>> 
>> On 12/9/2017 4:02 AM, Eero Volotinen wrote:
>>> Hi,
>>> 
>>> What is the best ipsec ciphers for aes-ni ipsec acceleration?
>>> 
>>> Eero
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