From owner-freebsd-net@FreeBSD.ORG Sun May 21 19:32:55 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 4F0A016A611 for ; Sun, 21 May 2006 19:32:55 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost2.sentex.ca (smarthost2.sentex.ca [205.211.164.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6550C43D5E for ; Sun, 21 May 2006 19:32:50 +0000 (GMT) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by smarthost2.sentex.ca (8.13.4P/8.13.4) with ESMTP id k4LJWmSE056319; Sun, 21 May 2006 15:32:48 -0400 (EDT) (envelope-from mike@sentex.net) Received: from simian.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.13.3P/8.13.3) with ESMTP id k4LJWlSf010982 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 21 May 2006 15:32:48 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <6.2.3.4.0.20060521152652.06cfce10@64.7.153.2> X-Mailer: QUALCOMM Windows Eudora Version 6.2.3.4 Date: Sun, 21 May 2006 15:32:45 -0400 To: Brian Candler From: Mike Tancsa In-Reply-To: <20060521171521.GA29990@uk.tiscali.com> References: <6.2.3.4.0.20060519110026.05820230@64.7.153.2> <6.2.3.4.0.20060519121104.1126b480@64.7.153.2> <20060521092602.GB20262@uk.tiscali.com> <6.2.3.4.0.20060521104147.081af2d8@64.7.153.2> <20060521171521.GA29990@uk.tiscali.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: by amavisd-new Cc: freebsd-net@freebsd.org, Ian Smith Subject: Re: improving transport over lossy links ? 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, 21 May 2006 19:33:00 -0000 At 01:15 PM 21/05/2006, Brian Candler wrote: >On Sun, May 21, 2006 at 11:09:23AM -0400, Mike Tancsa wrote: > > The internal USR seems to correctly see the carrier drop and PPP > > hence sees it. However, the 2 external Intels I am experimenting > > with on the USB serial ports do not. > >USB-serial adaptors tend to be very broken, unfortunately. I don't know >about under Windows, but under FreeBSD/Linux where drivers seem to be >reverse-engineered, several I've tried don't seem to handshake properly. I >tried two back-to-back to run a local pppd link and it failed (haven't had >time to debug that one) > >IMO there's no substitute for a real COM port. I was hoping to use some of the Soekris 4801s which have limited expandability. I need 2 serial ports for the application and then the modem of course. Under FreeBSD I have used the uftdi based adaptors for OOB console access and they seem to work OK. >A pair of analogue modems will never negotiate v90, This is the modem connected to my terminal server which is connected via PRI. I dont have any analog modem to analog modem setups. ---Mike