Hi, On Sun, Feb 20, 2022 at 08:19:32PM +0100, Bo Berglund wrote: > Question (has popped up on the SNB forum concerning use of OpenVPN clients in > ASUS routers): > Can the use of the lines below in the ovpn file used by the router affect comm > speed through the tunnel? > > cipher AES-256-CBC > comp-lzo > > If another cipher is chosen can the connection transfers be quicker? > (Considering a computational bottleneck in the Asus RT-AC68U router)
That depends on the CPU in that box, and the SSL library in use.
AES-256-GCM is extremely fast on CPUs that have AES-NI support (usually
"Intel and AMD"). cipher chacha20-poly1305 is fast on some ARM families
that have hardware support for that cipher.
Compression will slow down your transfers if you are CPU starved.
gert
--
"If was one thing all people took for granted, was conviction that if you
feed honest figures into a computer, honest figures come out. Never doubted
it myself till I met a computer with a sense of humor."
Robert A. Heinlein, The Moon is a Harsh Mistress
Gert Doering - Munich, Germany g...@greenie.muc.de
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