linux-kernel - Re: [PATCH net-next v6 23/23] net: WireGuard secure network tunnel

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Date:   Wed, 3 Oct 2018 16:13:02 +0200
From:   Ard Biesheuvel <ard.biesheuvel@...aro.org>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH net-next v6 23/23] net: WireGuard secure network tunnel

On 3 October 2018 at 16:12, Jason A. Donenfeld <Jason@...c4.com> wrote:
> Hi Ard,
>
> On Wed, Oct 3, 2018 at 1:15 PM Ard Biesheuvel <ard.biesheuvel@...aro.org> wrote:
>> > +config WIREGUARD
>> > +       tristate "WireGuard secure network tunnel"
>> > +       depends on NET && INET
>>
>> I think you need to add IPV6 here
>
> Nope. Like much of the net tree, WireGuard can function on ipv6-less
> kernels. If you do find something in WireGuard isn't working in a
> v6-less configuration, I consider that to be a bug that needs fixing.
>

OK. I hit a build error yesterday, and setting CONFIG_IPV6 fixed it.
Let me see if I can reproduce.