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From: Antonio Quartulli <a@...2181...>
Message-ID: <f0a67a1c-8103-5db9-44b2-7f4c82dc70a8@...2181...>
Date: Fri, 8 Jun 2018 01:28:56 +0800
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Subject: Re: [Openvpn-devel] [PATCH 1/5] tun: ensure interface can be
 configured with IPv6 only
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To: Selva Nair <selva.nair@...277...>, Gert Doering <gert@...1296...>
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From: Antonio Quartulli <a@...2181...>
To: Selva Nair <selva.nair@...277...>, Gert Doering <gert@...1296...>
Cc: openvpn-devel <openvpn-devel@lists.sourceforge.net>
Message-ID: <f0a67a1c-8103-5db9-44b2-7f4c82dc70a8@...2181...>
Subject: Re: [Openvpn-devel] [PATCH 1/5] tun: ensure interface can be
 configured with IPv6 only
References: <CAKuzo_gfgG=6LxX-s0aPReZeaXDwEBM0zfrtWxZR9JzNvkraOA@...278...>
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On 08/06/18 01:05, Selva Nair wrote:
> Hi,
>=20
> On Thu, Jun 7, 2018 at 12:57 PM, Gert Doering <gert@...1296...> wrote:
>> Hi,
>>
>> On Thu, Jun 07, 2018 at 12:14:51PM -0400, Selva Nair wrote:
>>> Note: All that said, I can't seem to connect to the server via ipv6
>>> when there is no v4 address. tracert fails before the first hop.
>>> v6 does work when ifconfig is not filtered out.
>>
>> This "should not happen".
>>
>> v6 should work no matter what we break in v4 land.
>>
>> But this is windows, and "should work" land...
>=20
> It happens because the patch skips CONFIG_TUN ioctl when v4 address is
> not set. I think that skips some initialization steps. I had expected
> the patch to setup the driver using 0/0/0 as the addres/mask/net as we
> discussed earlier. Fixing that should make the tap driver talk back to
> us and v6 work.

I have fixed that, but I have not been able to compile/test yet. Feel
free to give it a shot.

Cheers,

>=20
> Selva
>=20

--=20
Antonio Quartulli


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