Hi Tony, On 01/04/2021 04:38, Tony He wrote: > Hi Antonio, Arne, > > According to the dump, this issue is caused by fragment. If I set > link-mtu to 1472 in the condition of encryption "none", it's gone. > I also can reproduce the fragment in my Linux x86-64 PC and Linux VM . > They use kernel 5.4. Fragment affects the performance > in the low-end devices. It also consumes more CPU resource in low-end > and high-end devices. If I'm not mistaken, we don't need > to set link-mtu without dco. Is this a bug? Can you reproduce? Do I > still need to upload my dump? If so, maybe I need to provide a link.
You told us what you did to fix, but you haven't fully explained what the "broken setup" is. We don't have your configs, so we can't say what is creating the issue in your scenario. What is the MTU on the DCO and on the transport interfaces when the problem shows us? DCO should automatically come up with a working MTU, unless instructed to do differently or unless the transport interface has non standard MTU. Regards, -- Antonio Quartulli _______________________________________________ Openvpn-devel mailing list Openvpn-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-devel
