From owner-freebsd-hackers Fri Jan 4 15:46:59 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from ussenterprise.ufp.org (ussenterprise.ufp.org [208.185.30.210]) by hub.freebsd.org (Postfix) with ESMTP id 6F9D837B405 for ; Fri, 4 Jan 2002 15:46:45 -0800 (PST) Received: (from bicknell@localhost) by ussenterprise.ufp.org (8.11.1/8.11.1) id g04NkdY53835; Fri, 4 Jan 2002 18:46:39 -0500 (EST) (envelope-from bicknell) Date: Fri, 4 Jan 2002 18:46:39 -0500 From: Leo Bicknell To: Terry Lambert Cc: "Louis A. Mamakos" , Guido van Rooij , William Carrel , freebsd-hackers@FreeBSD.ORG Subject: Re: path_mtu_discovery Message-ID: <20020104234639.GA53752@ussenterprise.ufp.org> Mail-Followup-To: Terry Lambert , "Louis A. Mamakos" , Guido van Rooij , William Carrel , freebsd-hackers@FreeBSD.ORG References: <26E71536-013D-11D6-8ED3-003065D5E9A4@infospace.com> <3C36149B.B9C02DCF@mindspring.com> <20020104223235.GA64301@gvr.gvr.org> <200201042302.g04N2A789953@whizzo.transsys.com> <3C363C47.1AE94141@mindspring.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3C363C47.1AE94141@mindspring.com> Organization: United Federation of Planets Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In a message written on Fri, Jan 04, 2002 at 03:35:35PM -0800, Terry Lambert wrote: > Of course, now you've let the dirty little secret out of the > bag: the MTU is on the *route*, which means on the next hop, > so a spoof that got through would frag basically all traffic > out of the victim machine down to 296 bytes... I might be assuming something here, but I want to clarify. It is _NOT_ the case that a box with say, only a default route, would limit _ALL_ TCP connections to the lowest returned MTU. The MTU is on the *route*, where *route* == the cloned route, correct? -- Leo Bicknell - bicknell@ufp.org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/ Read TMBG List - tmbg-list-request@tmbg.org, www.tmbg.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message