From owner-freebsd-questions@FreeBSD.ORG Sun Apr 23 04:21:47 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0C6F816A401 for ; Sun, 23 Apr 2006 04:21:47 +0000 (UTC) (envelope-from dan@dpcsys.com) Received: from ns.beach.net (ns.beach.net [12.130.64.129]) by mx1.FreeBSD.org (Postfix) with ESMTP id A6D6C43D46 for ; Sun, 23 Apr 2006 04:21:46 +0000 (GMT) (envelope-from dan@dpcsys.com) Received: from [192.168.1.55] (jeffersonvalley.net [209.137.253.155] (may be forged)) by ns.beach.net (8.13.6/8.13.5) with ESMTP id k3N4LjnI081361; Sat, 22 Apr 2006 21:21:45 -0700 (PDT) In-Reply-To: <20060422223656.N82934@bravo.pjkh.com> References: <20060422223656.N82934@bravo.pjkh.com> Mime-Version: 1.0 (Apple Message framework v749.3) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <95793D90-82AC-4232-86D6-60B9C86762E3@dpcsys.com> Content-Transfer-Encoding: 7bit From: Dan Busarow Date: Sat, 22 Apr 2006 22:21:46 -0600 To: Philip Hallstrom X-Mailer: Apple Mail (2.749.3) Cc: freebsd-questions@freebsd.org Subject: Re: Simluating a satellite connection using dummynet? 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: Sun, 23 Apr 2006 04:21:47 -0000 On Apr 22, 2006, at 9:40 PM, Philip Hallstrom wrote: > Hi all - > > Odd question for you. I have the opportunity to work from home, > but it would require using a sat internet connection (no cable or > dsl anywhere close). > > I've been reading up on it and best I can tell I'm looking at > 1000ms round trips... at *best*. Most of what I do I can do on > servers at home, but there will be the occasional ssh, etc. > > I recently setup ipfw/dummynet with a pipe and a 750ms delay both > in and out and it wasn't as bad as I thought it would be -- at > least for ssh/text. Reminds me of my days on a 9600 baud modem. heh. > > I'm curious though whether this is a realistic test. Thoughts? > > Any of you use satellite? How do you find it? I had StarBand for about two years. 1000ms RTT are the best you will see. pushing 2000ms is more like it. While it is possible to work via an SSH session it will try your patience. It is doable, and it allowed me to move out to the country, but that's about it. I now have a terrestrial radio link into the nearest town, 15 miles away, and it's beautiful. Dan