From: Hannes Frederic Sowa <hannes@stressinduktion.org>
To: Simon Schneider <simon-schneider@gmx.net>
Cc: netdev@vger.kernel.org
Subject: Re: Re: Re: IPv4 / IPv6 over IPv4 IPsec tunnel: setting the DF bit
Date: Fri, 31 Jan 2014 16:01:43 +0100 [thread overview]
Message-ID: <20140131150143.GJ25336@order.stressinduktion.org> (raw)
In-Reply-To: <trinity-ece5a90d-72c2-4db9-a1f7-8c9af2bbfa65-1391156847114@3capp-gmx-bs01>
On Fri, Jan 31, 2014 at 09:27:27AM +0100, Simon Schneider wrote:
> I think your IPv6 related statements are for a IPv6-over-IPv6 case.
>
> However, I'm especially after the IPv6-over-IPv4 case.
>
> In that case, you cannot copy the DF bit from the inner IPv6 packet.
>
> But you still have the option to set or not set the DF bit in the IPv4 outer packet.
>
> How is that decided?
Basically only pmtudisc setting is cruical then. So no DF-bit if nopmtudisc
and DF-bit if pmtudisc.
Greetings,
Hannes
prev parent reply other threads:[~2014-01-31 15:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-30 12:25 IPv4 / IPv6 over IPv4 IPsec tunnel: setting the DF bit Simon Schneider
2014-01-30 14:21 ` Hannes Frederic Sowa
2014-01-30 15:26 ` Aw: " Simon Schneider
2014-01-30 15:59 ` Hannes Frederic Sowa
2014-01-31 8:27 ` Aw: " Simon Schneider
2014-01-31 15:01 ` Hannes Frederic Sowa [this message]
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