Hi Chris

sorry to but in .. I just want to clear this up:

----- Original Message ----- 
From: "Jan Just Keijser" <janj...@nikhef.nl>
To: "Chris Ross" <cross+open...@distal.com>
Cc: <openvpn-users@lists.sourceforge.net>
Sent: Friday, April 17, 2015 12:49 PM
Subject: Re: [Openvpn-users] Unable to establish VPN


Hi,

On 16/04/15 17:08, Chris Ross wrote:
>> On Apr 16, 2015, at 10:44, Jan Just Keijser <janj...@nikhef.nl> wrote:
>
>> Can you try adding the flag
>>    tls-version-min 1
>> to the server config?
>    Not with openvpn 2.3.6, it seems:
>
> Apr 16 10:47:11 bifröst openvpn[6175]: Options error: unknown
> tls-version-min parameter: 1
>
>    Using “1.0" parses, but doesn’t fix the problem.  Same results.  Trying
> 1.1 or 1.2 produce the same "unknown tls-version-min parameter” error on
> startup.

The correct syntax for --tls-version-min and --tls-version-max is:

--tls-version-min version ['or-highest']
Enable TLS version negotiation, and set the minimum TLS version we will
accept from the peer (default is "1.0"). Examples for version include "1.0",
"1.1", or "1.2". If 'or-highest' is specified and version is not recognized,
we will only accept the highest TLS version supported by the local SSL
implementation.
If this options is not set, the code in OpenVPN 2.3.4 will default to using
TLS 1.0 only, without any version negotiation. This reverts the beaviour to
what OpenVPN versions up to 2.3.2 did, as it turned out that TLS version
negotiation can lead to handshake problems due to new signature algorithms
in TLS 1.2.

--tls-version-max version
Set the maximum TLS version we will use (default is the highest version
supported). Examples for version include "1.0", "1.1", or "1.2".

The parameter must be enclosed in quotes.

https://community.openvpn.net/openvpn/wiki/Openvpn23ManPage#lbAK


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