netdev - Re: VPN traffic leaks in IPv6/IPv4 dual-stack networks/hosts

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Date:	Wed, 28 Nov 2012 21:06:12 +0100 (CET)
From:	Jan Engelhardt <jengelh@...i.de>
To:	Fernando Gont <fernando@...t.com.ar>
cc:	netdev <netdev@...r.kernel.org>
Subject: Re: VPN traffic leaks in IPv6/IPv4 dual-stack networks/hosts

On Wednesday 2012-11-28 20:57, Fernando Gont wrote:

>On 11/27/2012 01:10 PM, Jan Engelhardt wrote:
>>> For a project such as OpenVPN, a (portable) fix might be non-trivial.
>> 
>> If the VPN server does not even advertise to-be-secured IPv6 prefixes, 
>> any client-side fix is questionable. 
>
>If the VPN is supposed to secure all traffic, and the VPN just fails to
>support v6, then for me, it's questionable to have your traffic leak out
>the VPN just because of that lack of IPv6 support.

Well, what I am saying is that a server may not
be conveying "all", but only "0.0.0.0/0".
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