Re: openvpn can not detect kernel dco module

Hi:
d tbsky <[email protected]>
>
> Antonio Quartulli
> > What is the exact openvpn and dc oversion that you compiled in your last
> > test?
> >
> Hi:
>
>   openvpn: 2.6.10
>   dco: 0.2.20240320

I finally compiled dco module with full info and test it under
openwrt. using iperf3 to test the tunnel, the upload speed for
aes-128-gcm/aes-256-gcm increased from about 20Mbit to 40Mbit. but the
download speed remain the same (about 20Mbit). I can not test chach20.
it cause openvpn crash with message "dco_new_key: netlink reports
object not found, ovpn-dco unloaded?".

I tried to downgrade the dco module to 2022 version, but openvpn can
not detect it although the file "/sys/module/ovpn-dco/version" exist.
I think the maybe openvpn 2.6.10 need "ovpn-dco-v2" module name?

anyway the dco speed is still very poor. wireguard can run
"190Mbit/300Mbit" upload/download speed at this device. openvpn can
only do "40mb/20mb". but openvpn is more stable and feature rich than
wiregurad. so I think I will stay at openvpn via powerful x86
hardware.