Dear all, OpenVPN Community would like to present a new technical preview version of OpenVPN Windows client with Data Channel Offload functionality. This version includes many bugfixes and improvements since the previous one (May 2021). It also uses OpenSSL 3.0.1.
The client is built from the openvpn "dco" branch (https://github.com/openvpn/openvpn/tree/dco) plus some unmerged patches. The Data Channel Offload kernel driver is built from https://github.com/openvpn/ovpn-dco-win The signed installers for x64, x86 and ARM64 could be downloaded from the link below: https://build.openvpn.net/downloads/temp/ovpn-dco-win/msi/ Note that DCO functionality requires Windows 10 2004 (Windows Server 2022) or newer. To enable it, add following options to your ovpn profile: windows-driver ovpn-dco-win tun-mtu 1428 If you are interested in what happens inside the driver, you could run TraceView (https://docs.microsoft.com/en-us/windows-hardware/drivers/devtest/traceview) and create a new logging session with control GUID 4970F9cf-2c0c-4f11-b1cc-e3a1e9958833. More information could be found in README.md in ovpn-dco-win repo. Please give it a try and let us know if you got better performance compared to tap-windows6. If you experience any issues with it, please let us know too. Be aware that this is a technical preview and not a final release, so use your judgement. -- -Lev _______________________________________________ Openvpn-devel mailing list Openvpn-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-devel
