I would suggest to keep auth enabled, while having cipher none, to avoid
DoS attacks.

On Aug 6, 2017 11:35, "Yevgeny Kosarzhevsky" <phao...@gmail.com> wrote:

> On 2 August 2017 at 20:37, David Sommerseth <openvpn@sf.lists.
> topphemmelig.net> wrote:
>> Configuring OpenVPN without encryption is a peculiar use case I've
>> seldom quite understood, except if you're doing some research on various
>> crypto or network related scenarios.
> OpenVPN without encryption or with weak encryption using '--auth none
> --no-iv --no-replay' is still great tool for tunneling traffic over UDP
> protocol. IPIP, L2TP or other known tunneling solutions may be blocked in
> certain countries. This is the reason I would vote to keep no-iv option in
> upcoming 2.5 release.
> --
> Regards,
> Yevgeny
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