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Hi,

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Wednesday, 19 May 2021 14:31, Samuli Seppänen <sam...@openvpn.net> wrote:

> Hi,
>
> Here's the summary of the IRC meeting.
>
> --------------------------------------------
>
> COMMUNITY MEETING
>
> Place: #openvpn-meeting on irc.freenode.net
> Date: Wed 19th May 2021
> Time: 14:00 CET (12:00 UTC)
>
> Planned meeting topics for this meeting were here:
>
> https://community.openvpn.net/openvpn/wiki/Topics-2021-05-19
>
> Your local meeting time is easy to check from services such as
>
> http://www.timeanddate.com/worldclock
>
> SUMMARY
>
> cron2, dazo, d12fk, lev, mattock, ordex, plaisthos and syzzer
> participated in this meeting.
>

>
> ----------------------------------------------------------------------------------------------------
>
> Talked about removing --no-replay option. Noted that it was to be
> removed in 2.5, but we backpedaled on that decision and forgot to change
> our documentation. It was also noted that that option changes the wire
> format.
>
> Noted that --cipher none --auth none and --no-replay are quite
> intertwined. Getting rid of these options would be good from security
> perspective, but it was also noted that plain-text OpenVPN tunnels do
> have some advantages over the alternatives like GRE tunnels.
>
> Summarizing the discussion:
>
> 1.  OpenVPN 2.6: reject configs where --no-replay is used without --auth
>     none.
>
> 2.  OpenVPN 2.7: remove --no-replay
> 3.  Add clear warnings to 2.5 and 2.6 about 1) and 2)
>
> Noted that mattock buildbot setup is shaping up nicely. There are a ton
> of workers and code and data are quite well separated. Mattock is now
> working on limiting concurrent builds on the docker host, then moving on
> to t_client tests.
>

WRT --no-replay

There is also --mute-replay-warnings, which you all seem to have over-looked.

Perhaps this message could be changed (crypto.c:338):
            msg(D_REPLAY_ERRORS, "%s: bad packet ID (may be a replay): %s -- "
                "see the man page entry for --no-replay and --replay-window for 
"
                "more info or silence this warning with --mute-replay-warnings",
                error_prefix, packet_id_net_print(pin, true, gc));

Remove the reference to --no-replay soon.

Just a thought.
R

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