From: David Miller <davem@davemloft•net>
To: uweber@astaro•com
Cc: netdev@vger•kernel.org
Subject: Re: [PATCH] ipv6: Use 1280 as min MTU for ipv6 forwarding
Date: Fri, 26 Feb 2010 03:59:47 -0800 (PST) [thread overview]
Message-ID: <20100226.035947.242568281.davem@davemloft.net> (raw)
In-Reply-To: <20100226092752.GA5969@babylon>
From: Ulrich Weber <uweber@astaro•com>
Date: Fri, 26 Feb 2010 10:27:52 +0100
> Clients will set their MTU to 1280 if they receive a
> ICMPV6_PKT_TOOBIG message with an MTU less than 1280.
>
> To allow encapsulating of packets over a 1280 link
> we should always accept packets with a size of 1280
> for forwarding even if the path has a lower MTU and
> fragment the encapsulated packets afterwards.
>
> In case a forwarded packet is not going to be encapsulated
> a ICMPV6_PKT_TOOBIG msg will still be send by ip6_fragment()
> with the correct MTU.
>
> Signed-off-by: Ulrich Weber <uweber@astaro•com>
Patch does not apply to net-next-2.6, icmpv6_send() no longer
takes the final 'dev' argument.
next prev parent reply other threads:[~2010-02-26 11:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-26 9:27 [PATCH] ipv6: Use 1280 as min MTU for ipv6 forwarding Ulrich Weber
2010-02-26 11:59 ` David Miller [this message]
2010-02-26 12:32 ` [PATCH net-next] " Ulrich Weber
2010-02-26 12:34 ` David Miller
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