linux-kernel - Re: [PATCH] Configurable tap interface MTU

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Message-ID: <e6c711510709120954i29a8f86bg9ea7bb337a039b5a@mail.gmail.com>
Date:	Wed, 12 Sep 2007 09:54:35 -0700
From:	"Ed Swierk" <eswierk@...stra.com>
To:	"Herbert Xu" <herbert@...dor.apana.org.au>, netdev@...r.kernel.org,
	maxk@...lcomm.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Configurable tap interface MTU

On 9/11/07, Herbert Xu <herbert@...dor.apana.org.au> wrote:
> Please make it 65535 without an Ethernet header and 65521
> with an Ethernet header.

Here is a revised patch that allows MTUs up to 65535 for tap
interfaces and up to 65521 for tun interfaces.

(If I set the MTU to 65521 on a tun interface, ping complains "message
too long" when I send a 65521-byte packet; 65520 works okay, though.)

--Ed

Download attachment "tap-change-mtu.patch" of type "application/octet-stream" (1185 bytes)