35-40% performance drop releng9 vs releng10 openvpn

Charles Swiger cswiger at mac.com
Wed Mar 18 21:41:46 UTC 2015


On Mar 18, 2015, at 2:14 PM, John-Mark Gurney <jmg at funkthat.com> wrote:
> As I've never used OpenVPN before and their docs don't go into saying
> what it's using.. Is OpenVPN a kernel or userland VPN?  Do they use
> IPSec in the kernel? or are they just using UDP or TCP for their
> connections?

OpenVPN runs in userland; it uses OpenSSL to create either a layer-2 or
layer-3 tunnel via either UDP or TCP.

http://en.wikipedia.org/wiki/OpenVPN has more details.

Regards,
-- 
-Chuck



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