Re: [Openvpn-users] OpenVPN tunnel stopped working (no traffic) after upgrade to OpenVPN 2.7 (Fedora 44)

Piotr Dobrogost <[email protected]>
Newsgroups gmane.network.openvpn.devel
Message-ID <CAA6tFMvqXpCYxiWmo5WRQavGpALZOAVbuW5mwaMSoUNeNJc3oQ@mail.gmail.com>
On Mon, May 18, 2026 at 9:22 AM Antonio Quartulli <[email protected]> wrote:
>
> Piotr, not sure I asked before: could you check the stats with 'ip -s
> link ovpn-sfx' ?

I will, but in the meantime, I wanted to ask a question: is dco on the
server and client totally independent in the sense that it can be
turned on only on one side and not on the other side, and it would
work on the side where it's turned on?
Reading the answer to the question "Do both the client and server need
to support DCO?" at
https://blog.openvpn.net/openvpn-data-channel-offload-dco-the-definitive-guide-to-the-performance-boost-making-openvpn-the-fastest-vpn-protocol
I would think so, but maybe I'm wrong, and the reason it does not work
is simply that it's turned off on the server side?


Regards,
Piotr


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