netdev - Re: DF Bit set on UDP traffic -- bug or feature?

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Message-Id: <20090819.211631.197791532.davem@davemloft.net>
Date:	Wed, 19 Aug 2009 21:16:31 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	gdt@....id.au
Cc:	netdev@...r.kernel.org
Subject: Re: DF Bit set on UDP traffic -- bug or feature?

From: Glen Turner <gdt@....id.au>
Date: Thu, 20 Aug 2009 09:22:45 +1000

> Can I humbly suggest that when the kernel does not implement
> its own fragmentation strategy (as it does with TCP Path MTU
> Discovery) that the DF bit not be set by the kernel?

It's UDP path MTU discovery, it's legal, and Linux has been
doing it for almost 10 years.

I don't think it's changing, sorry.

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