From owner-freebsd-questions@FreeBSD.ORG Thu Aug 30 18:15:57 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 19F4116A421 for ; Thu, 30 Aug 2007 18:15:57 +0000 (UTC) (envelope-from bob.middaugh@comcast.net) Received: from rwcrmhc14.comcast.net (rwcrmhc14.comcast.net [216.148.227.154]) by mx1.freebsd.org (Postfix) with ESMTP id 01CAE13C4D0 for ; Thu, 30 Aug 2007 18:15:56 +0000 (UTC) (envelope-from bob.middaugh@comcast.net) Received: from rmailcenter18.comcast.net ([204.127.197.128]) by comcast.net (rwcrmhc14) with SMTP id <20070830181547m1400khtd3e>; Thu, 30 Aug 2007 18:15:47 +0000 Received: from [199.20.117.164] by rmailcenter18.comcast.net; Thu, 30 Aug 2007 18:15:46 +0000 From: bob.middaugh@comcast.net (Bob Middaugh) To: "Shah, Baiju-p98993" , Date: Thu, 30 Aug 2007 18:15:46 +0000 Message-Id: <083020071815.1215.46D70952000CC36F000004BF220700095308099A0E0B0B0703D20D010D@comcast.net> X-Mailer: AT&T Message Center Version 1 (Oct 4 2006) X-Authenticated-Sender: Ym9iLm1pZGRhdWdoQGNvbWNhc3QubmV0 Cc: Subject: Re: Question about Window Scaling X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 Aug 2007 18:15:57 -0000 Hi Baiju, Try this to get started: http://proj.sunet.se/E2E/tcptune.html http://www.wormulon.net/files/pub/FreeBSD_Network_Tuning_-_slides.pdf If upgrading is an option: http://caia.swin.edu.au/reports/070717B/CAIA-TR-070717B.pdf Hope that helps, Bob -------------- Original message ---------------------- From: "Shah, Baiju-p98993" > Greetings. > > We currently use Espion appliance running FreeBSD 4.9 as a mail interceptor for > SPAM. We have one customer who has their mail gateway hard coded with Window > Scaling (WS=9). Their mail gateway fails to establish SMTP hello connection > with WS=9. However if they set their Window Scaling to 7, it works. > > Where can I go on the FreeBSD to see its configuration for Window Scale? How > can I modify that configuration? Please email me with your recommendation to > baiju.shah@gdc4s.com. Any and all help are appreciated. Thank you in advance. > > > Baiju Shah > Network Security Engineer > General Dynamics-C4S West > 8201 E. McDowell Road > MD: H1217 Scottsdale, Arizona 85257 > Desk: 480.441.9877 > Email: baiju.shah@gdc4s.com > > Important Confidentiality Notice: > This message and any attachments are confidential and may be protected by legal > privilege. If you are not the intended recipient, be aware that any disclosure, > copying, distribution, or use of this message or any attachment is prohibited. > If you have received this message in error, please notify me immediately by > returning it to me and deleting this copy from your system. > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"