From owner-freebsd-net@FreeBSD.ORG Sun Jan 8 05:01:20 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4400216A41F for ; Sun, 8 Jan 2006 05:01:20 +0000 (GMT) (envelope-from kamal_ckk@yahoo.com) Received: from web30013.mail.mud.yahoo.com (web30013.mail.mud.yahoo.com [68.142.201.216]) by mx1.FreeBSD.org (Postfix) with SMTP id B291343D45 for ; Sun, 8 Jan 2006 05:01:19 +0000 (GMT) (envelope-from kamal_ckk@yahoo.com) Received: (qmail 46349 invoked by uid 60001); 8 Jan 2006 05:01:19 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=EEvTb6hKL7PBKGpsYD7/bR/rK9fXq4GEL962JC4EClQTYV6rIUGhU54jVKZW9NsXOhs67JU8x8aPlIoRQbAAMB9B3n3Ur+bGInQDEtrxSS1MiPbu9QpNccBP5XXXYpNSqkolYBdwAe9RHlpUWWM+obwUsj5EmS3C/2DB0xTLN7w= ; Message-ID: <20060108050119.46345.qmail@web30013.mail.mud.yahoo.com> Received: from [202.161.131.69] by web30013.mail.mud.yahoo.com via HTTP; Sat, 07 Jan 2006 21:01:19 PST Date: Sat, 7 Jan 2006 21:01:19 -0800 (PST) From: kamal kc To: freebsd In-Reply-To: <018e01c6135e$4c25b130$42764eca@ilo.skyinet.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Subject: Re: increasing the ethernet MTU greater than 1500 (1502) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Jan 2006 05:01:20 -0000 > > > i don't want to fragment the packet as i think > > that is too much overhead for 2 bytes. rather i > > want to increase the mtu. > > why increase the mtu when you can decrease it? one > good example is the > PPPoE... default mtu size of pppoe is 1492 because > of the 6 bytes pppoe > header and 2 bytes ppp protocol id to fit into the > default 1500 mtu of > ethernet.... therefore you set your mtu to 1498 to > fit your 2 bytes extra > header :-> in that way you are safe from any > violation of rfcs... i had never thought that way, thanks and i will try decreasing MTU to 1498. that was a great help indeed !!! kamal __________________________________________ Yahoo! DSL – Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com