[Bug 276838] ovpn(4) - problems with large TCP segments over IPv6 tunnel when DCO module is used at both ends

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 30 Aug 2024 21:12:30 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276838

Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freebsd.org/bu
                   |                            |gzilla/show_bug.cgi?id=2800
                   |                            |36

--- Comment #6 from Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> ---
In bug 280036 the reporter complains about apparent data corruption which I can
easily reproduce. 
Clearly, the FreeBSD implementation of OpenVPN --mssfix is broken in case
ovpn(4) is deployed at both ends. Setting "tun-mtu 1400" on the OpenVPN server
works as a workaround.

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are on the CC list for the bug.