[vserver] Re: [Openvpn-users] tunnelling IPv6 subnets through OpenVPN

On Sun, Dec 20, 2009 at 08:24:56PM +0000, Davide Brini wrote:
> On Sunday 20 December 2009, David Sommerseth wrote:
>
> > On 20/12/09 20:36, Adam Tauno Williams wrote:
> > > It works well, no issues.
> >
> > I believe you will need to use the TAP device to make this work, as
> > OpenVPN do not support IPv6 over TUN devices. But I agree, that this
> > should work, even though I have not tried it in real life yet.
> >
> > The caveats is that using TAP devices gives more overhead in the traffic
> > between the OpenVPN server and client, as raw ethernet frames are
> > transferred, compared against TUN devices, which operates on the IP
> > level. But as TUN do not support IPv6, you need to use TAP.
>
> Or tunnel IPv6 in IPv4, and use TUN (yes, IPv6 MTU will be smaller, but it
> should work).

I do not have native IPv6 connectivity (HE.net and SixXs /48 tunnels on the
linux vserver host), so then TUN is the way to go to terminate /56 subnets
in the guests?

-- 
Eugen* Leitl leitl http://leitl.org
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