netdev - Re: [PATCH net-next] net: ipv6: Add sysctl entry to disable MTU updates from RA

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Date:	Mon, 19 Jan 2015 20:07:20 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Harout Hedeshian <harouth@...eaurora.org>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH net-next] net: ipv6: Add sysctl entry to disable MTU
 updates from RA

On Fr, 2015-01-16 at 18:02 -0700, Harout Hedeshian wrote:
> The kernel forcefully applies MTU values received in router
> advertisements provided the new MTU is less than the current. This
> behavior is undesirable when the user space is managing the MTU. Instead
> a sysctl flag 'accept_ra_mtu' is introduced such that the user space
> can control whether or not RA provided MTU updates should be applied. The
> default behavior is unchanged; user space must explicitly set this flag
> to 0 for RA MTUs to be ignored.
> 
> Signed-off-by: Harout Hedeshian <harouth@...eaurora.org>

Makes sense!

Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

Thanks,
Hannes


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