Hello, I don't fully understand your comment that the dco module only works with OpenVPN 2.6.
I use this module (openvpn-dco-dkms) with the openvpn3-client package, via the --dco true flag. You can see this option in the openvpn3-client documentation here: https://openvpn.net/community-docs/openvpn-client-for-linux.html#about-dco--data-channel-offload- So, currently I'm affected by this bug on sid with openvpn3-client. Thanks for your work!
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