From owner-freebsd-net@FreeBSD.ORG Tue May 27 18:34:52 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 715B310656F4 for ; Tue, 27 May 2008 18:34:52 +0000 (UTC) (envelope-from mav@mavhome.dp.ua) Received: from cmail.optima.ua (cmail.optima.ua [195.248.191.121]) by mx1.freebsd.org (Postfix) with ESMTP id E31EA8FC1D for ; Tue, 27 May 2008 18:34:51 +0000 (UTC) (envelope-from mav@mavhome.dp.ua) X-Spam-Flag: SKIP X-Spam-Yversion: Spamooborona-2.1.0 Received: from [212.86.226.226] (account mav@alkar.net HELO [192.168.3.2]) by cmail.optima.ua (CommuniGate Pro SMTP 5.1.14) with ESMTPA id 135716469; Tue, 27 May 2008 20:34:49 +0300 Message-ID: <483C4636.7080608@mavhome.dp.ua> Date: Tue, 27 May 2008 20:34:46 +0300 From: Alexander Motin User-Agent: Thunderbird 2.0.0.14 (Windows/20080421) MIME-Version: 1.0 To: Stefan Lambrev References: <1211891010.00075594.1211880013@10.7.7.3> <1211894613.00075634.1211884201@10.7.7.3> <1211901827.00075710.1211890802@10.7.7.3> In-Reply-To: <1211901827.00075710.1211890802@10.7.7.3> Content-Type: text/plain; charset=windows-1251; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: Adjust Maximum Segment Size? 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: Tue, 27 May 2008 18:34:52 -0000 Stefan Lambrev wrote: >> Yes, You can with ng_tcpmss > Isn't it doable only with ipfw/divert when using ng_tcpmss? > I have and some concerns about performance too .. There are several ways to inject packet to ng_tcpmss: - ipfw + divert + ng_ksocket. It should be faster then usual user-level implementation - ipfw + netgraph as described in ng_tcpmss(4) - use ng_tcpmss directly in some complicated netgraph setup. For example, mpd is able to use it. This is probably the fastest and easiest way, but only for some setups. -- Alexander Motin