From owner-freebsd-security Mon Jul 9 2:11: 0 2001 Delivered-To: freebsd-security@freebsd.org Received: from mail.rdc2.bc.home.com (ha1.rdc2.bc.wave.home.com [24.2.10.68]) by hub.freebsd.org (Postfix) with ESMTP id 8E3A437B403 for ; Mon, 9 Jul 2001 02:10:54 -0700 (PDT) (envelope-from cperciva@sfu.ca) Received: from cr263028-a.sfu.ca ([24.113.38.176]) by mail.rdc2.bc.home.com (InterMail vM.4.01.03.00 201-229-121) with ESMTP id <20010709091054.GGTG11518.mail.rdc2.bc.home.com@cr263028-a.sfu.ca>; Mon, 9 Jul 2001 02:10:54 -0700 Message-Id: <5.0.0.25.1.20010709020039.04304240@popserver.sfu.ca> X-Sender: cperciva@popserver.sfu.ca X-Mailer: QUALCOMM Windows Eudora Version 5.0 Date: Mon, 09 Jul 2001 02:10:49 -0700 To: Darren Reed From: Colin Percival Subject: Re: FW: Small TCP packets == very large overhead == DoS? Cc: dr@kyx.net (Dragos Ruiu), silby@silby.com (Mike Silbersack), cjclark@alum.mit.edu, avalon@coombs.anu.edu.au (Darren Reed), Yonatan@xpert.com (Yonatan Bokovza), freebsd-security@FreeBSD.ORG ('freebsd-security@freebsd.org') In-Reply-To: <200107090855.SAA12298@caligula.anu.edu.au> References: <0107082333531I.08020@smp.kyx.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org At 06:55 PM 7/9/2001 +1000, Darren Reed wrote: >In some mail from Dragos Ruiu, sie said: > > where for some applications the representatives argued that 64 bytes was > > too large a packetsize (this particular debate was over 32 or 64 byte > cells, > > and oddly enough they agreed on 48 for no particular reason other > > than to stop arguing :-). > >Err, wasn't the result 53 ? I believe the argument was over the amount of data per cell, not the total cell size; with 53 byte cells there are 5 bytes of header and 48 bytes of data. But in any case... shouldn't this be on -net? I think the question of security was put to rest several emails ago. Colin Percival To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message