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Date:   Thu, 6 Oct 2022 13:18:11 +0200
From:   Florian Westphal <fw@strlen.de>
To:     Martin Zaharinov <micron10@gmail.com>
Cc:     Florian Westphal <fw@strlen.de>, pablo@netfilter.org,
        Paolo Abeni <pabeni@redhat.com>,
        netfilter-devel@vger.kernel.org,
        netfilter <netfilter@vger.kernel.org>
Subject: Re: Kernel 6.0.0 bug pptp not work
Message-ID: <20221006111811.GA3034@breakpoint.cc>
References: <3D70BC1B-A19E-45E3-B6BC-6B2719BA9B46@gmail.com>
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Martin Zaharinov <micron10@gmail.com> wrote:
> Hi Team
> 
> I make test image with kernel 6.0.0 and schem is :
> 
> internet <> router NAT <> windows client pptp
> 
> with l2tp all is fine and connections is establesh.
> 
> But when try to make pptp connection  stay on finish phase and not connect .
> 
> try to remove module : nf_conntrack_pptp and same not work.

Did you rely on
sysctl net.netfilter.nf_conntrack_helper=1, or are you assigning the
helper via ruleset?