From owner-freebsd-questions@FreeBSD.ORG Sun Apr 10 14:44:11 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 9C68F16A4CE for ; Sun, 10 Apr 2005 14:44:11 +0000 (GMT) Received: from smtp-out4.blueyonder.co.uk (smtp-out4.blueyonder.co.uk [195.188.213.7]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6208943D2F for ; Sun, 10 Apr 2005 14:44:10 +0000 (GMT) (envelope-from rjc@caley.org.uk) Received: from mail.r.caley.org.uk ([82.41.210.35]) by smtp-out4.blueyonder.co.uk with Microsoft SMTPSVC(5.0.2195.6713); Sun, 10 Apr 2005 15:44:47 +0100 Received: from pele.r.caley.org.uk (pele.r.caley.org.uk [10.0.0.12]) by mail.r.caley.org.uk (8.13.3/8.13.3) with ESMTP id j3AEi3cU012433 for ; Sun, 10 Apr 2005 15:44:03 +0100 (BST) (envelope-from rjc@caley.org.uk) Received: from pele.r.caley.org.uk (localhost [127.0.0.1]) by pele.r.caley.org.uk (8.13.3/8.13.3) with ESMTP id j3AEi7tJ007545 for ; Sun, 10 Apr 2005 15:44:07 +0100 (BST) (envelope-from rjc@bast.r.caley.org.uk) Received: (from rjc@localhost) by pele.r.caley.org.uk (8.13.3/8.13.3/Submit) id j3AEi76h007542; Sun, 10 Apr 2005 15:44:07 +0100 (BST) (envelope-from rjc@bast.r.caley.org.uk) X-Authentication-Warning: pele.r.caley.org.uk: rjc set sender to rjc@bast.r.caley.org.uk using -f Sender: rjc@caley.org.uk To: freebsd-questions@freebsd.org From: Richard Caley Date: 10 Apr 2005 15:44:07 +0100 In-Reply-To: <87u0mezp9p.fsf@pele.r.caley.org.uk> Message-ID: <87ll7qzo7c.fsf@pele.r.caley.org.uk> Lines: 56 User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.1 (Cuyahoga Valley) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 10 Apr 2005 14:44:47.0277 (UTC) FILETIME=[D7835DD0:01C53DDB] Subject: Re: Having problems with user PPP to private network in 5.4-STABLE 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: Sun, 10 Apr 2005 14:44:11 -0000 Has there been a change in user-ppp or general networking behaviour between 4.* and 5-STABLE which might explain why I can't talk to a private network's PPP server from a 5.4 machine when I can from a 4.11 machine using the same ppp.conf etc? I can connect and all looks fine WRT routing and ifconfig etc. but I can't even ping the machine at the far enf of the PPP link. I can connect to and use a real ISP, so the modem seems to be fine. I was connecting to this private network from here using this modem and this ppp.config on a 4.8 machine on friday, and can connect now from a 4.11 machine. The only vaguely interesting things about the connection are that I am using a USB->serial adapter to hook up the modem, and that the remote network uses non-routable addresses in 192.168.16.0/24 and hands me 192.168.16.104 as my address. Is something defaulting to blocking communication with non-routable addresses in 5.*? I have added an ipfw rule to log all packets in and out down tun0 and the ping packets seem to go but nothing comes back. So it looks like the problem is at the PPP level or below. Eventually the modem connection jams up, looks like the problem discussed recently on the freebsd-usb list WRT USB->serial converters. However, given that I can dial an ISP and talk to web sites etc. I presume that is not the actual show-stopper. Here are some relevent settings as they appear after I connect, there are other interfaces and routes, but I think they are irrelevent. smurf/~# ifconfig [...] tun0: flags=8051 mtu 1500 inet 192.168.16.104 --> 192.168.16.7 netmask 0xffffffff Opened by PID 3939 [...] smurf/~# netstat -nr Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 82.41.210.1 UGS 1 30778 rl1 [...] 192.168.16 192.168.16.7 UGS 0 0 tun0 192.168.16.7 192.168.16.104 UH 1 0 tun0 [...] -- Mail me as MYFIRSTNAME@MYLASTNAME.org.uk _O_ |<