Date: Wed, 21 Sep 2005 12:42:44 +0200 From: =?ISO-8859-1?Q?Sten_Daniel_S=F8rsdal?= <lists@wm-access.no> To: Robert Watson <rwatson@freebsd.org> Cc: freebsd-net@freebsd.org, Milscvaer <millueradfa@yahoo.com> Subject: Re: UDP dont fragment bit Message-ID: <43313924.9050009@wm-access.no> In-Reply-To: <20050920134408.Y34322@fledge.watson.org> References: <20050918212110.61962.qmail@web54501.mail.yahoo.com> <20050920134408.Y34322@fledge.watson.org>
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> > For whatever reason, it turns out that you and only you have requested > this feature. For typicaly network debugging applications, a raw socket > is used, which allows the direct frobbing the the IP DF bit. For > example, in traceroute(8). > > Could you tell us a bit more about the application and proposed use? > Presumably forcing the DF bit isn't much use unless you can also > retrieve useful reporting on the ICMP errors associated with needing the > fragment? > I have been looking for such a feature too. My Application; Bandwidth tester (also as a support app for an UDP file transfer utility) The reason i want DF bit removed? I want to be able to generate my own fragments or let the routers generate the fragments. I also want to be able to receive bad UDP packets to gather statistics. This would be userland applications. -- Sten Daniel Sørsdal
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