From owner-freebsd-net@FreeBSD.ORG Tue May 7 18:56:30 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 99B1A30F for ; Tue, 7 May 2013 18:56:30 +0000 (UTC) (envelope-from guru@unixarea.de) Received: from ms16-1.1blu.de (ms16-1.1blu.de [89.202.0.34]) by mx1.freebsd.org (Postfix) with ESMTP id 39ADBB5A for ; Tue, 7 May 2013 18:56:30 +0000 (UTC) Received: from [82.113.99.104] (helo=tiny.Sisis.de) by ms16-1.1blu.de with esmtpsa (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1UZn3s-0003Hl-P3; Tue, 07 May 2013 20:56:29 +0200 Received: from tiny.Sisis.de (localhost [127.0.0.1]) by tiny.Sisis.de (8.14.5/8.14.3) with ESMTP id r47IuQW2001144; Tue, 7 May 2013 20:56:26 +0200 (CEST) (envelope-from guru@unixarea.de) Received: (from guru@localhost) by tiny.Sisis.de (8.14.5/8.14.3/Submit) id r47IuOIk001143; Tue, 7 May 2013 20:56:24 +0200 (CEST) (envelope-from guru@unixarea.de) X-Authentication-Warning: tiny.Sisis.de: guru set sender to guru@unixarea.de using -f Date: Tue, 7 May 2013 20:56:24 +0200 From: Matthias Apitz To: Joe Holden Subject: Re: ppp(8) and inbound IP connections Message-ID: <20130507185623.GA1115@tiny.Sisis.de> References: <20130507181345.GA992@tiny.Sisis.de> <51894B52.2050903@rewt.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <51894B52.2050903@rewt.org.uk> X-Operating-System: FreeBSD 10.0-CURRENT r235646 (i386) User-Agent: Mutt/1.5.21 (2010-09-15) X-Con-Id: 51246 X-Con-U: 0-guru X-Originating-IP: 82.113.99.104 Cc: freebsd-net@freebsd.org X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: Matthias Apitz List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 May 2013 18:56:30 -0000 El día Tuesday, May 07, 2013 a las 07:43:30PM +0100, Joe Holden escribió: > > tun6: flags=8051 metric 0 mtu 1500 > > options=80000 > > inet 10.33.28.104 --> 10.64.64.64 netmask 0xffffffff > > nd6 options=21 > > Opened by PID 799 > > > > and the routing is: > > > > > > Routing tables > > > > Internet: > > Destination Gateway Flags Refs Use Netif Expire > > default 10.64.64.64 UGS 0 1694 tun6 > > 10.33.28.104 link#7 UHS 0 0 lo0 > > 10.64.64.64 link#7 UHS 0 1 tun6 > > 127.0.0.1 link#6 UH 0 75 lo0 > > > > Any ideas about this? Thanks. > > > > I'm attaching the ppp.conf file. > > > > matthias > > > It seems quite clear from your ifconfig output that your provider > doesn't give you a routable address, so you will never see inbound > connections. Usually providers have an alternate APN that will give you > one, but that depends on the provider in question. Ofc, the provider must NAT somehow my local addr behind some routable valid IP addr, in our case 82.113.99.104; without this nothing would come back, even when the 1st SYN was from my side; the question is, why they do not manage the NAT table so any SYN to 82.113.99.104 is sent to my ppp link; or if they do send it, and my ppp config is wrong? Thanks for your reply in any case matthias -- Sent from my FreeBSD netbook Matthias Apitz | - No system with backdoors like Apple/Android E-mail: guru@unixarea.de | - Never being an iSlave WWW: http://www.unixarea.de/ | - No proprietary attachments, no HTML/RTF in E-mail phone: +49-170-4527211 | - Respect for open standards