From owner-freebsd-questions@FreeBSD.ORG Mon Jan 9 20:18:32 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7B47F1065670 for ; Mon, 9 Jan 2012 20:18:32 +0000 (UTC) (envelope-from christoph@christoph-egger.org) Received: from 1und1.siccegge.de (cl-1281.dus-01.de.sixxs.net [IPv6:2a01:198:200:500::2]) by mx1.freebsd.org (Postfix) with ESMTP id 3E1268FC13 for ; Mon, 9 Jan 2012 20:18:32 +0000 (UTC) Received: from dsl01.212.114.250.149.ip-pool.nefkom.net ([212.114.250.149] helo=localhost) by 1und1.siccegge.de with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1RkLfq-0004sJ-0o for freebsd-questions@freebsd.org; Mon, 09 Jan 2012 21:18:31 +0100 From: Christoph Egger To: freebsd-questions@freebsd.org Organization: Privat Date: Mon, 09 Jan 2012 21:20:15 +0100 Message-ID: <87obuciq68.fsf@hepworth.siccegge.de> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.92 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Subject: 2 distinct DSL lines with same endpoint (8-STABLE) 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: Mon, 09 Jan 2012 20:18:32 -0000 Hi all! I'm having a FreeBSD 8 gateway that is supposed to do NAT/firewall stuff with internet coming through 2 distinct DSL modems from the same carrier. Unfortunately I can only run ppp on one of these lines as the endpoint address for both lines are the same so bringing up the second line fails in | PPp ON elephant> Warning: tun1: AIFADDR X.X.X.X -> Y.Y.Y.Y returns -1 | Warning: iface add: ioctl(SIOCAIFADDR, X.X.X.X -> Y.Y.Y.Y): File exists | Error: ipcp_InterfaceUp: unable to set ip address Where Y.Y.Y.Y is already also used for the other ppp connection. This seems to be a known Problem with FreeBSD ppp (google turns up some results) but I haven't found any usefull workarounds. Can anyone suggest some way to get this kind of setup working? Regards Christoph -- 9FED 5C6C E206 B70A 5857 70CA 9655 22B9 D49A E731 Debian Developer | Lisp Hacker | CaCert Assurer