From owner-freebsd-questions@FreeBSD.ORG Sat Feb 12 04:03:28 2005 Return-Path: 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 94BF016A4CE for ; Sat, 12 Feb 2005 04:03:28 +0000 (GMT) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3CD3243D39 for ; Sat, 12 Feb 2005 04:03:28 +0000 (GMT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.13.1/8.13.1) id j1C43RC2086255; Fri, 11 Feb 2005 22:03:27 -0600 (CST) (envelope-from dan) Date: Fri, 11 Feb 2005 22:03:27 -0600 From: Dan Nelson To: "Andrew P." Message-ID: <20050212040327.GA49626@dan.emsphone.com> References: <420D7EE3.5000305@mail.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <420D7EE3.5000305@mail.ru> X-OS: FreeBSD 5.3-STABLE X-message-flag: Outlook Error User-Agent: Mutt/1.5.7i cc: FreeBSD-Questions Subject: Re: Concealing short disconnects X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Feb 2005 04:03:28 -0000 In the last episode (Feb 12), Andrew P. said: > I have a few machines behind my FreeBSD box. The box connects to ISP > via ppp (PPPoE protocol). It's all working very nicely, but the ISP > is a pain - it disconnects every 24 hours. I can reconnect in just a > moment - so the diconnect is usually less than a second long, but > many applications, like ICQ/MSN and games "feel" the disconnect. The > matter is that these applications can handle fairly large packet loss > (e.g. Counter-Strike can cope with at least 15-second long 100% > packet loss), but AFAIK it's in the nature of the TCP/UDP that a > disconnect is a disconnect. > > As I know that FreeBSD is full of magic, is there any way to > conceal these reconnects as short moments of 100% packet loss? > I am ashamed to know very little about protocols' technicalities, > but I'll look into any sources you advise. Check to see if your IP number changes when you reconnect. If it does, there's nothing you really can do; the remote system you were talking to knew you only by your old IP, and those packets coming to them from this other IP are unrelated. -- Dan Nelson dnelson@allantgroup.com