Date: Tue, 23 Oct 2001 02:54:41 -0400 From: Brian T.Schellenberger <bts@babbleon.org> To: cjclark@alum.mit.edu, "Crist J. Clark" <cristjc@earthlink.net>, j mckitrick <jcm@FreeBSD-uk.eu.org> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: question about mtu and fragment offset Message-ID: <01102302544103.01714@i8k.babbleon.org> In-Reply-To: <20011022225420.E364@blossom.cjclark.org> References: <20011019134824.A9949@dogma.freebsd-uk.eu.org> <20011022225420.E364@blossom.cjclark.org>
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On Tuesday 23 October 2001 01:54, Crist J. Clark wrote:
> On Fri, Oct 19, 2001 at 01:48:24PM +0100, j mckitrick wrote:
> > This is for a class project :-)
> >
> > If the mtu of a gateway is 1500, does that mean all fragments larger
> > than this will be broken into packets of 1500 (20 header, 1480 data) or
> > packets of 1496 (20 header, 1476 data) since the fragment offset must be
> > even multiples of 8?
>
> 1500. 1480 is a multiple of 8 last time I checked.
Maybe you should check again:
> dc
5 k
1500 8 / p
187.50000
1496 8 / p
187.00000
--
Brian T. Schellenberger . . . . . . . bts@wnt.sas.com (work)
Brian, the man from Babble-On . . . . bts@babbleon.org (personal)
http://www.babbleon.org
-------> Free Dmitry Sklyarov! (let him go home) <-----------
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