From owner-freebsd-questions@FreeBSD.ORG Mon Apr 25 00:50:55 2011 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 8B6F910656A6 for ; Mon, 25 Apr 2011 00:50:55 +0000 (UTC) (envelope-from dscheidt@panix.com) Received: from www.thixotropy.net (vc183.vc.panix.com [IPv6:2001:470:30:80:e276:63ff:fe62:3833]) by mx1.freebsd.org (Postfix) with ESMTP id 5170A8FC18 for ; Mon, 25 Apr 2011 00:50:55 +0000 (UTC) Received: from [IPv6:2001:470:c399:1:e2f8:47ff:fe1f:2692] (unknown [IPv6:2001:470:c399:1:e2f8:47ff:fe1f:2692]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by www.thixotropy.net (Postfix) with ESMTPSA id 939BB1257E2; Sun, 24 Apr 2011 20:50:54 -0400 (EDT) Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: text/plain; charset=us-ascii From: David Scheidt In-Reply-To: <20110424202954.GA16373@phare.normalesup.org> Date: Sun, 24 Apr 2011 20:50:53 -0400 Content-Transfer-Encoding: quoted-printable Message-Id: <9DC435EF-B1BA-405D-9023-9724F65E77E3@panix.com> References: <20110424202954.GA16373@phare.normalesup.org> To: Lionel Fourquaux X-Mailer: Apple Mail (2.1084) Cc: FreeBSD Mailing List Subject: Re: routing to a directly attached subnet without an address in this subnet 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, 25 Apr 2011 00:50:55 -0000 On Apr 24, 2011, at 4:29 PM, Lionel Fourquaux wrote: > Dear FreeBSD users, >=20 > Consider an IPv6 router with two interfaces, e.g. em0 and em1. > em0 has addresses fe80::1234:56ff:fe78:9abc and 2001:db8::1 > em1 has address fe80::1234:56ff:fe78:9abd > Network 2001:db8::/64 is directly attached to em0, and network = 2001:db8:0:1::/64 is directly attached to em1. The default route points = to em0. I would like to route packets addressed to 2001:db8:0:1::/64 to = interface em1, without allocating an address in 2001:db8:0:1::/64 for = em1. (Or to understand why this would be impossible). >=20 Why do you want to do this? How do you expect the hosts on the attached = networks to get packets to you? =20