As far as I know, OpenVPN 2.3 can't reconnect with persist-tun even without 
block-outside-dns if redirect-gateway with DNS was used and DNS TTL is exceeded.
AFAIR I learned about workaround for this issue in master only after the patch 
or probably forgot about that difference. Sorry for that.

On 06/04/2016 08:46 AM, Selva Nair wrote:
>
> On Tue, May 31, 2016 at 8:48 AM, debbie10t <debbie...@gmail.com 
> <mailto:debbie...@gmail.com>> wrote:
>
> You are right, the WFP filters are not removed if tunnel is not re-opened. I 
> do not think this was by design, probably no one noticed it before. I have 
> been
> running master which has a "bug" that forces the tun to re-open even if 
> persist-tun is specified, so fortuitously this issue never showed up.
>
> I'll provide a patch to make block-outside-dns work with persist-tun.
>
> Selva
>
>  
>
>
>
>
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